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Auto-Trail • Excel • 2026
Complete guide — 39 diagnostic faults and 18 FAQs across 10 categories, assembled from every category document and cross-referenced part covering this exact edition.
Auto-TrailAwning (Excel, 2026 Model Year)
Awning0001 FAQ
Awning (Excel, 2026 Model Year)
AwningFrequently Asked Questions
Q: How do I wind the wind-out awning in and out?
Locate the socket on the left side of the awning case and insert the winding handle, then turn clockwise - the fabric starts to unroll after a couple of turns. Once it's out to about a metre, stop and lower the support legs, adjusting their length until they reach the ground, then keep unrolling until the awning is fully extended.
Adjust the legs' height so the fabric sits taut and rain can run off, then pull the handle back out. It's worth pegging the legs down too. To put it away, reverse the process - wind anti-clockwise until it snaps back into the box, then keep turning slowly until the handle stops, which locks it shut.
Auto-TrailElectrical System (Excel, 2026 Model Year)
Electrical0001 FAQ
Electrical System (Excel, 2026 Model Year)
ElectricalFrequently Asked Questions
Q: Which fuse or MCB protects which circuit, and what rating should I use to replace one?
On the PSU (fuses 2 to 10 show a red LED beneath them once blown, while the charger's own fuse has a green LED to confirm it's working): Fuse 1 (25A, white) - Charger; Fuse 2 (7.5A, brown) - Permanent 12V; Fuse 3 (10A, red) - 12V Sockets; Fuse 4 (10A, red) - Appliances/Fans; Fuse 5 (15A, blue) - Compressor Fridge (when fitted); Fuse 6 (10A, red) - Pumps; Fuse 7 (10A, red) - Light Main & Dimmer 1; Fuse 8 (10A, red) - Light Main & Dimmer 2; Fuse 9 (5A, tan) - Awning/Entry Light; Fuse 10 (10A, red) - En Route/Electric Step (or Entry Light, depending on model); Fuses 11-13 (15A/7.5A/5A) - Spare; Fuse 14 (15A, blue) - Solar (rear fitting).
Leisure battery fuses: Battery 1 and Battery 2 (30A, green, remotely located near the battery, Battery 2 where fitted). EM41 Interface Unit fuses: Fuse 1 - Spare; Fuse 2 (5A, tan) - Marker lights; Fuse 3 (20A, yellow) - Towbar +; Fuse 4 (20A, yellow) - Vehicle battery; Fuse 5 - Spare; Fuse 6 (20A, yellow) - Fridge +; Fuse 7 (20A, yellow) - Towbar D+; Fuse 8 (20A, yellow) - Fridge D+.
MCBs: MCB 1 (10A) - 230V sockets; MCB 2 (16A) - Extra 230V sockets/heating system; MCB 3 (10A) - Fridge/Separate Water Heater/Charger/Aircon. Always fit a replacement fuse rated the same as the original - never a higher one, since that risks damage to the wiring harness. If a new fuse blows again straight away, don't just keep swapping it out - get the underlying fault checked and speak to your dealer.
SargentEC700 Series Systems
Battery Charger / Power Management3007 FAQs
EC700 Series Systems
Battery Charger / Power ManagementTechnical Specifications
Master Troubleshooting & Diagnostics Matrix
| Error Code / Indicator | Symptom / Meaning | Possible Cause | Step-by-Step DIY Fix | Suggested Actions |
|---|---|---|---|---|
N/A | EC700 or EC800 control panel's battery current reading doesn't look right | — | Switch the mains charger off at the EC700/EC800 PSU (skip this if you're not on a mains hook-up). Press and hold the cog (system settings) button to open advanced settings, then use the arrow to move to page 2 and press 'Calibrate'. A pop-up warns that the van's power will briefly cut out while calibrating - accept it, and the current sensor calibrates itself. Once power's back, the current reading should show correctly again. | DIY Safe |
N/A | Leisure batteries keep discharging, or don't hold their charge as long as they should | In the vast majority of cases, this comes down to a faulty or under-performing battery - even a brand new one can be the culprit. | Before testing, give the leisure battery a full charge of 24 hours or more, turn the charger off, disconnect or cover the solar panel so it can't affect readings, and disconnect the Stinger alarm if one's fitted - if two batteries are fitted, test them one at a time. To check the PSU's own draw, fit an ammeter or plug-in meter where the leisure battery fuse normally sits: with the PSU's shutdown button out the reading should be zero (anything else means extra equipment is drawing current and should be disconnected); with the button in, compare the reading against the system's published Power OFF figures; and with the button in and the panel switched on (everything else off), compare against the Power ON figures. To check the charger, note the battery voltage on the panel or at the terminals (expect around 12.7V, or 13-13.5V if recently charged), switch the mains charger on and watch the voltage rise and settle at 13.6V float, then switch on some lights and confirm it shifts to 14.4V. To check the battery's actual capacity, switch the panel on, turn on enough lights to draw about 5A, and time how long it takes to discharge down to 10V (when the panel warns and cuts the power) - multiply the discharge current by the elapsed hours to get the real Ah delivered, and repeat the test if the result looks low. A battery that keeps testing poorly should go back to its supplier or manufacturer for proper discharge testing. | DIY Safe |
N/A | Ammeter still shows a reading even with the PSU shutdown button pulled out | Something's been added to the system since the original installation and is drawing current that shouldn't be there | Disconnect this extra equipment. | DIY Safe |
Frequently Asked Questions
Q: Is it possible to charge the vehicle (starter) battery using my system?
Whether you can depends on which type of Sargent PSU system you have - manual-charging or CAN-bus based.
On systems that only charge manually - PSU2007 with EC200, EC328, EC325, EC225 with EC100, EC176 with EC361/2/3, and EC155 with EC50/51 - the leisure battery is charged by default: with the control panel switched off, the mains charger starts charging the leisure battery the moment it's plugged in, and with the panel on, it keeps the leisure battery topped up while also powering the leisure loads. To charge the vehicle battery instead, switch the control panel on and pick the vehicle battery - the charger then charges that battery along with any leisure loads left switched on. Note that EC100, EC200, EC325 and EC50/51 panels won't allow the vehicle battery to be selected below 10.9V, while EC328 panels (software V2.21) will allow it above 2V provided the mains charger is on. If mains power is lost while charging the vehicle battery, leisure loads will start drawing from it instead - switching back to the leisure battery once the vehicle battery either falls below the 10.9V cut-off or, if it started above that, once it recovers back up to 10.9V. The leisure battery itself has its own 9V cut-off that disconnects leisure loads to stop it discharging further.
CAN-bus systems (the EC800, EC700, EC600, EC500, EC450 and EC400) include a smart-charge feature instead, on by default but switchable off. With the mains charger on, it defaults to charging the leisure battery while keeping an eye on the vehicle battery - if that drops below 12.4V, charging switches to it for 4 hours, then returns to the leisure battery for another 4 hours, repeating the cycle for as long as the vehicle battery stays low. This runs regardless of whether the control panel is on, as long as the system's own shutdown button is switched in (unless you've disabled the feature) - and if the panel is on, you can manually pick whichever battery you want charged at any point in the cycle.
Q: How do I calibrate an EC700 control panel?
Start by switching the EC700 PSU off, then switch the shutdown button on again while continuously tapping the control panel screen. Once the system powers up you'll see a blue screen prompting you to touch 3 dots - do that, and the panel will show 'calibrated' on the blue screen, then go back to its usual display, completing the process.
Q: How do I calibrate an EC800 control panel?
Start by switching the EC800 PSU on and powering up the control panel via its power button. Then press and hold that power button - after 5 seconds the screen goes off, but keep holding for another 15 seconds until a blue screen comes up asking you to tap 3 dots. Do that, and the panel will show 'calibrated' on the blue screen, then go back to its usual display, completing the process.
Q: Can I fit a Lithium battery to my system?
Most Sargent systems use a PX300 or PF200 battery charger. If yours has a different charger fitted, check with that charger's own manufacturer for Lithium compatibility. The PX300's charging profile suits many leisure-industry Lithium batteries that have their own internal Battery Management System (BMS) - its charging profile and voltages are available as a downloadable attachment on the PX300's own product page, though you'll still need to confirm suitability directly with your chosen battery's manufacturer.
Systems that use a PX300 include the EC800, EC700, EC600, EC500, EC400 series, EC400+ and EC328. If your system doesn't have a PX300, its charger will run a fixed 13.8V, which generally isn't suitable for fully charging a Lithium battery - and switching to Lithium may also mean you need a DC-DC charger to keep the charging current within limits.
Q: Can I fit a second leisure battery to my Auto-Trail motorhome?
On an Auto-Trail, adding an extra leisure battery is normally simple - every current model and most older ones already have a dedicated connector, so the extra battery harness just plugs in.
Ideally pick a second battery of the same make, type and capacity as the one you have. If that's not possible, at least keep the capacity the same and never mix battery types (for example, don't pair a 'wet' battery with an AGM one).
Sargent sells the harness through its web shop (https://sargentltd.co.uk/shop/product/auto_trail_additional_battery_harness_2011-2016/229). It's the newer type, fitted to Auto-Trail vans from 2011, but it suits older vans too because the battery connector hasn't changed.
To fit it:
- Connect the harness to the new battery, making sure both terminals are tight and their covers are back on.
- Secure the battery in its box or compartment (this varies by year and model) without trapping the harness.
- Take the protective cap off the vehicle's spare battery connector.
- Plug the new battery in.
With an EC328 or EC700 system, that's it - the extra battery is ready to charge and use.
With an EC500 and the EC480 colour LCD panel, also set the battery size to the new total in the advanced settings (two 100Ah batteries means 200Ah), then recalibrate the current sensor.
To change the battery size:
- On the home screen showing the brand logo, press both the up and down arrows at once and keep them pressed.
- Let go once the screen changes.
- Scroll to 'Battery Size' and use select to raise it to the new total.
- Go back up to 'Exit Advanced', then press select to return to normal use.
Don't worry if the Ah reading drops afterwards - it takes a few charge and discharge cycles to line up with the real capacity, which is normal.
To recalibrate the current sensor:
- Turn the charger off, and switch the control panel off at its power button.
- Go to the active battery screen.
- Hold select until 'calibrating please wait….' appears.
- Let go - calibration is done.
Q: Can I fit a different make of AGM battery?
We don't endorse any particular make or model, but the PX300 charger (fitted across the EC400/EC400+, EC500, EC600, EC700, EC800 and EC328 systems) suits the great majority of good-quality AGM batteries sold in the UK. Its charge profile is included in the instruction manual attached to its product page - if you're at all unsure whether a battery is compatible, check with that battery's own distributor or manufacturer first.
Q: Can I connect additional solar panels to my system?
How much solar you can add through the PSU comes down to the fuse protecting that circuit, which varies by system - the maximum recommended wattage through the PSU is 120W for EC325/EC328/EC500/EC600, 80W for EC400, and 150W for EC700/EC800/EC400+. You can go beyond that by wiring extra panels straight onto the leisure battery via their own regulator and a correctly-sized fuse, though you'll lose the ability to see that extra solar's output on the control panel.
Any system without a PSU solar input at all needs its solar wired directly onto the leisure battery this way regardless - and there's no upper wattage limit when connecting straight to the battery like this.
Auto-TrailGas Supply System (Excel, 2026 Model Year)
Gas Regulator / Supply3000 FAQs
Gas Supply System (Excel, 2026 Model Year)
Gas Regulator / SupplyMaster Troubleshooting & Diagnostics Matrix
| Error Code / Indicator | Symptom / Meaning | Possible Cause | Step-by-Step DIY Fix | Suggested Actions |
|---|---|---|---|---|
N/A | Burner accidentally extinguishes (Thetford cooker/hob/oven/grill) | — | Turn the knob back to O and wait a minute before trying to relight the burner. If it still hasn't caught within fifteen seconds, turn the knob back to O again, let go, wait another minute, then start the whole lighting sequence over. | DIY Safe |
N/A | The gas flame lifts clear of the burner instead of sitting on it. | Gas pressure is too high | Go back over the regulator, gas cylinders, and pipework, and make any adjustments needed. | DIY Safe |
N/A | Yellow flame during gas appliance check (causing soot) | Gas pressure is too low | Go back over the regulator, gas cylinders, and pipework, and make any adjustments needed. | DIY Safe |
WhaleSL3501, SL3511, SL5501, SL5511, SL5601, SL5611, SL6501, SL6511
Space Heater0613 FAQs
SL3501, SL3511, SL5501, SL5511, SL5601, SL5611, SL6501, SL6511
Space HeaterTechnical Specifications
Master Troubleshooting & Diagnostics Matrix
| Error Code / Indicator | Symptom / Meaning | Possible Cause | Step-by-Step DIY Fix | Suggested Actions |
|---|---|---|---|---|
1 | Inadequate gas supply | Insufficient gas pressure or lack of gas supply | Check gas supply, ensure 30mbar LPG is available, and proceed to step 4 to clear the lockout. If the issue remains unresolved, contact an authorized service agent. | DIY Check / Tech Fallback |
2 | Overheat | Heater exceeded normal operating temperature due to restricted airflow | Make sure the air vents and ducts aren't restricted, then give the heater 10 minutes to cool before moving to step 4 to clear the lockout. Contact an authorised service agent if the fault persists. | DIY Check / Tech Fallback |
3 | Inadequate supply voltage | The DC supply voltage has drifted outside the heater's 10.5-15.9V operating range (it won't run at all below 10.1V). | Verify supply voltage is between 10.5 and 15.9V DC, and proceed to step 4 to clear the lockout. If the issue remains unresolved, contact an authorized service agent. | DIY Check / Tech Fallback |
4 | Flue blockage | Obstruction in the exhaust flue or combustion inlet | Check flues for blockages, clear any obstructions such as snow or debris, and proceed to step 4 to clear the lockout. If the issue remains unresolved, contact an authorized service agent. | DIY Check / Tech Fallback |
5 | Internal fault | Internal system error or component failure | Call Whale Support (+44 (0)345 9090 911) (in Europe, use the enclosed Webasto Service details instead) and move to step 4. This fault needs a repair or replacement carried out by an authorised service agent. | Professional Intervention Required |
6 | Control panel fault | Communication error or temporary glitch in the control panel | Power off the unit, power on the unit, and proceed to step 4 to clear the lockout. If the issue remains unresolved, contact an authorized service agent. | DIY Check / Tech Fallback |
7 | Multiple faults | Simultaneous or sequential system errors triggered | Power off the heater, check heater for recurring faults, power on, and proceed to step 4 to clear the lockout. If the issue remains unresolved, contact an authorized service agent. | DIY Check / Tech Fallback |
Frequently Asked Questions
Q: Can I fit a Heat Air heater myself?
If you're technically minded, yes - each Heat Air kit includes a detailed step-by-step installation guide. Otherwise, a local motorhome workshop should be able to fit it for you. Whoever fits it, a qualified gas engineer has to certify any gas work to BS EN 1949-2011.
Q: Which Heat Air model should I choose?
The models differ in heat output and fuel type, with options for both campervans and panel-van conversions - broadly, the bigger the vehicle, the more output you'll want. Gas-only suits off-grid touring; if you mostly stay on sites with hook-up, the gas-and-electric version adds 3kW of electric heating.
Q: Will Heat Air work when I'm off-grid?
Yes. Every Heat Air model can run on gas, and on its low gas setting it draws very little from the battery - as little as 0.6 A.
ThetfordN4000 Series Refrigerator (N4080/N4090/N4097/N4100/N4104/N4108/N4112/N4141/N4142/N4145/N4150/N4170/N4175, as fitted to Auto-Trail motorhomes)
Fridge / Freezer31010 FAQs
N4000 Series Refrigerator (N4080/N4090/N4097/N4100/N4104/N4108/N4112/N4141/N4142/N4145/N4150/N4170/N4175, as fitted to Auto-Trail motorhomes)
Fridge / FreezerTechnical Specifications
Master Troubleshooting & Diagnostics Matrix
| Error Code / Indicator | Symptom / Meaning | Possible Cause | Step-by-Step DIY Fix | Suggested Actions |
|---|---|---|---|---|
Error 1 | Refrigerator senses a flame when the gas supply should be off | A stuck-open gas valve, or a power board fault. | Turn the refrigerator off and on again. If the error returns, check whether the gas valve is operating correctly - if not, it needs replacing. If the valve checks out fine, the power board itself needs replacing. | DIY Safe |
Error 2 | Burner control module returns incorrect feedback | A failed burner control module. | The power board needs replacing - contact an authorised Thetford service agent. | Professional Intervention Required |
Error 3 | Gas lockout - the burner fails to ignite within 30 seconds | Empty or closed-off gas supply, no spark at the electrode, incorrect electrode gap/connections, a dirty burner/injector, or incorrect gas pressure. | Check the gas bottle isn't empty and all valves are open. Turn the fridge off and on and check for a spark at the electrode - the gap should be about 4mm, with clean, undamaged connections. If everything there checks out, the burner/injector may need cleaning, or the gas pressure (should read 30-35 mbar) needs checking. If the fault persists after all of this, contact an authorised Thetford service agent. | DIY Check / Tech Fallback |
Error 4 | DC heater is off when it should be on | A loose connection, a blown 25A fuse, or a failed DC heater element. | Check all connections are secure and the 25A fuse is intact. If those are fine, the DC heater element's resistance needs checking against Thetford's spec table by a qualified technician, and replaced if out of range. | DIY Check / Tech Fallback |
Error 5 | DC heater is on when it should be off | A power board fault. | Turn the refrigerator off and on to reset. If the error returns, the power board needs replacing - contact an authorised Thetford service agent. | DIY Check / Tech Fallback |
Error 6 | DC voltage is out of range (below 10V or above 15V) | A vehicle-side power supply issue, or an issue with a connected solar regulator/panel. | This isn't a fridge fault as such - check the vehicle's own DC power supply and, if fitted, the solar panel and its regulator. | DIY Safe |
Error 7 | No "engine running" signal present while in manual DC mode | A vehicle-side D+ wiring/power supply issue rather than a fridge fault. | Check the vehicle's D+ supply is present and stable between 10-15V. If it is, the fridge's power board needs replacing - contact an authorised Thetford service agent. | DIY Check / Tech Fallback |
Error 8 | AC heater current measured at 75% below the expected level | Mains voltage out of range, a blown 2A fuse, or a failed AC heater element. | Check the mains supply reads between 190-260V. Check the 2A fuse. If both are fine, the AC heater element's resistance needs checking against Thetford's spec table by a qualified technician, and replaced if out of range. | DIY Check / Tech Fallback |
Error 9 | AC heater is on when it should be off | A power board fault. | Turn the refrigerator off and on to reset. If the error returns, the power board needs replacing - contact an authorised Thetford service agent. | DIY Check / Tech Fallback |
Error 10 | AC mains supply is out of range | Mains voltage outside the 190-260V range, or a power board fault. | Check the site/mains supply voltage first. If it's within range and the error persists, the power board needs replacing - contact an authorised Thetford service agent. | DIY Check / Tech Fallback |
Error 11 | No energy source available while in AUTO mode | None of the three energy sources (gas/12V/230V) are actually available or connected. | Make sure at least one energy source is genuinely connected and available. Select each source manually to check whether a more specific error code appears for that source. | DIY Safe |
Error 12 | Display board and power board have lost communication with each other | A loose or damaged wiring loom connection between the boards, or (rarely) a failed board. | Disconnect the 12V supply for 5 minutes to let the resettable fuse cool, then reconnect. If the error persists, check the wiring loom plug's pins aren't bent or loose, and that both boards' connectors are properly seated. If it still persists, contact an authorised Thetford service agent - the cable or a board itself likely needs replacing. | DIY Check / Tech Fallback |
Error 13 | Thermistor has failed - the fridge automatically switches to backup operation | The thermistor is missing, unplugged, or its cable/connection has failed. | Check the thermistor is present and correctly plugged into the connector, and that the wiring loom is properly connected to the power board with no bent or loose pins. If everything checks out but the fault remains, the thermistor or power board needs replacing - contact an authorised Thetford service agent. | DIY Check / Tech Fallback |
N/A | Display is black and won't turn on, even holding the power button for 5+ seconds | Low/unstable DC supply voltage, or in rare cases a short circuit on the power board caused by something outside the fridge itself. | Check the fridge's DC supply is stable between 10-15V. If a short circuit is suspected, isolate the fridge from that power source and contact an authorised Thetford service agent - do not attempt to test for a short circuit yourself. | DIY Check / Tech Fallback |
Auto-TrailSmoke & CO Alarms (Excel, 2026 Model Year)
Smoke / CO Alarm3000 FAQs
Smoke & CO Alarms (Excel, 2026 Model Year)
Smoke / CO AlarmMaster Troubleshooting & Diagnostics Matrix
| Error Code / Indicator | Symptom / Meaning | Possible Cause | Step-by-Step DIY Fix | Suggested Actions |
|---|---|---|---|---|
N/A | The smoke alarm gives a brief beep every minute. | The battery is worn out and needs replacing. | Replace the battery immediately. (Low voltage warning sounds for approximately seven days). | DIY Safe |
Recommended partsAffiliate linksView 2 optionsHideCheck which battery your smoke alarm takes (look at the battery fitted now), then choose the matching one: The handbook says the smoke alarm is battery-operated but doesn't name the battery type, so check yours before ordering. 9V batteryDuracell Plus 9V Alkaline Batteries (2 Pack) 6LR61~£6.50 for 24.7★ (15,000+ ratings), dispatched/sold by Amazon View on Amazon →AA batteriesDuracell Plus AA Alkaline Batteries (12 Pack) 1.5V, LR06~£9.00 for 124.7★ (71,000+ ratings), dispatched/sold by Amazon View on Amazon → | ||||
N/A | The smoke alarm's LED doesn't blink once a minute as it normally would. | Battery is completely flat | Replace the battery immediately. | DIY Safe |
Recommended partsAffiliate linksView 2 optionsHideCheck which battery your smoke alarm takes (look at the battery fitted now), then choose the matching one: The handbook says the smoke alarm is battery-operated but doesn't name the battery type, so check yours before ordering. 9V batteryDuracell Plus 9V Alkaline Batteries (2 Pack) 6LR61~£6.50 for 24.7★ (15,000+ ratings), dispatched/sold by Amazon View on Amazon →AA batteriesDuracell Plus AA Alkaline Batteries (12 Pack) 1.5V, LR06~£9.00 for 124.7★ (71,000+ ratings), dispatched/sold by Amazon View on Amazon → | ||||
N/A | The carbon monoxide detector gives one audible chirp every minute, and can continue doing so for up to 30 days. | Incorrect settings of sensor/circuitry or low batteries | Check the detector's settings, or fit new batteries - this chirping doesn't mean carbon monoxide has actually been detected. | DIY Safe |
Recommended partsAffiliate linksView 2 optionsHideCheck which battery type your CO alarm takes (look at the batteries fitted now), then choose the matching pack: The handbook doesn't say which battery this alarm uses. Most caravan CO alarms take AA or 9V batteries, so check yours before ordering. AA batteriesDuracell Plus AA Alkaline Batteries (12 Pack) 1.5V, LR06~£9.00 for 124.7★ (71,000+ ratings), dispatched/sold by Amazon View on Amazon →9V batteryDuracell Plus 9V Alkaline Batteries (2 Pack) 6LR61~£6.50 for 24.7★ (15,000+ ratings), dispatched/sold by Amazon View on Amazon → | ||||
Auto-TrailToilets & Sanitation (Excel, 2026 Model Year)
Toilet0001 FAQ
Toilets & Sanitation (Excel, 2026 Model Year)
ToiletFrequently Asked Questions
Q: How do I prepare the Thetford cassette waste-holding tank before using the toilet?
Take the waste-holding tank out through the service door, stand it up so the pour-out spout faces upward, then take the cap off. Add the recommended amount of Thetford waste-holding tank additive plus roughly 3 litres of water so the bottom is covered, refit the cap, and slot the tank back into place.
Auto-TrailTV & Antenna (Excel, 2026 Model Year)
TV / Aerial / Satellite0002 FAQs
TV & Antenna (Excel, 2026 Model Year)
TV / Aerial / SatelliteFrequently Asked Questions
Q: How do I turn on the Smart Television?
There's a power button on the television's side - press it and the standby light will turn red, then finish switching it on using the standby button on its remote.
Q: How do I tune the television the very first time I switch it on?
Use the direction arrows to pick the on-screen (OSD) language for your display, then choose 'Auto Search' and hit 'OK'.
Auto-TrailWater System (Excel, 2026 Model Year)
Water System Component2001 FAQ
Water System (Excel, 2026 Model Year)
Water System ComponentMaster Troubleshooting & Diagnostics Matrix
| Error Code / Indicator | Symptom / Meaning | Possible Cause | Step-by-Step DIY Fix | Suggested Actions |
|---|---|---|---|---|
N/A | The water pump keeps running for more than 5 to 10 seconds after every tap has been shut off. | Possible leak in the water system | Check the whole water system for leaks without delay, and make a habit of powering the pump down from its control panel every time you leave the vehicle. | DIY Safe |
N/A | Aerated water from a tap | There may be a leak on the pump's suction side. | Look for a leak where the pump draws water in and repair as needed. | DIY Safe |
Frequently Asked Questions
Q: How do I drain the water system for winter or storage?
Open the fresh water tank's drain valve, then the wastewater tank's, then leave every tap inside the vehicle open (set mixer taps to their central position). There's also an internal drain valve that clears the water heater and its pipework - open that too, give the vehicle five minutes to finish draining, briefly run the pump to clear any water left in it, and empty the cassette toilet.
WhaleExpanse
Water Heater5111 FAQ
Expanse
Water HeaterTechnical Specifications
Master Troubleshooting & Diagnostics Matrix
| Error Code / Indicator | Symptom / Meaning | Possible Cause | Step-by-Step DIY Fix | Suggested Actions |
|---|---|---|---|---|
N/A | Damage found on the appliance or electrical supply cord prior to or during installation | Component or power cord damaged during transit or handling | Don't install the appliance. A damaged electrical supply cord must only be replaced by the manufacturer, one of its service agents, or another similarly qualified person, to avoid a hazard - contact an authorised service agent or Whale Support straight away. | Professional Intervention Required |
N/A | Water heater control panel shows 'No Flame Detected' (number-of-bars-lit fault indicator) | No gas supply, empty gas bottle, blockage in the gas line, using butane below 5C, or a blocked combustion air inlet/exhaust flue. | Check the gas supply, making sure there is gas in the bottle and no blockage in the gas line. At temperatures below 5C, use propane gas rather than butane. Check the combustion air inlet flue and exhaust flue for blockages. Clear the lockout by pressing the water heat setting button and the plus (+) symbol button simultaneously for 3 seconds. | DIY Safe |
N/A | Water heater control panel shows 'Overheat' (number-of-bars-lit fault indicator) | No water in the appliance, or the water heater has not been given time to cool. | Check that there is water in the appliance. Whale recommends waiting at least 5 to 10 minutes to allow the water heater to cool, then clear the lockout by pressing the water heat setting button and the plus (+) symbol button simultaneously for 3 seconds. | DIY Safe |
N/A | Water heater control panel shows 'Low/High Supply Voltage' (number-of-bars-lit fault indicator) | Supply voltage at the water heater is outside the 10V-15V d.c. operating range. | Check battery voltage. If between 10V d.c. and 15V d.c., check connections between the water heater and battery. Check the alternator or external battery charging. Clear the lockout by pressing the water heat setting button and the plus (+) symbol button simultaneously for 3 seconds. | DIY Safe |
N/A | Water heater control panel shows 'Air Proving' (number-of-bars-lit fault indicator) | Combustion air inlet flue or exhaust flue blocked. | Check the combustion air inlet flue and exhaust flue for blockages. Clear the lockout by pressing the water heat setting button and the plus (+) symbol button simultaneously for 3 seconds. | DIY Safe |
N/A | Water heater control panel shows 'Other/Internal Fault' (number-of-bars-lit fault indicator) | Internal fault. | Attempt to clear the lockout by pressing the water heat setting button and the plus (+) symbol button simultaneously for 3 seconds. If this fails, contact Whale Support on +44 (0)845 217 2933. | DIY Check / Tech Fallback |
N/A | Water heater control panel shows 'General Fault' (number-of-bars-lit fault indicator) | Two faults have occurred at the same time, or at least five lockout-clearing attempts have been unsuccessful. | Turn off power to the water heater, check the water heater for faults, then turn power back on and clear the lockout by pressing the water heat setting button and the plus (+) symbol button simultaneously for 3 seconds. | DIY Safe |
Frequently Asked Questions
Q: Does Whale make a thermostatic mixing valve?
Yes, product code is WX1599.
Auto-TrailWindows (Excel, 2026 Model Year)
Rooflight / Skylight / Roof Vent0001 FAQ
Windows (Excel, 2026 Model Year)
Rooflight / Skylight / Roof VentFrequently Asked Questions
Q: How do I remove small scratches from acrylic windows?
A metal polish, or a proper acrylic polish, will take small scratches out. Deeper ones need a coarser abrasive first, then finish off with the finest-grade polish to buff the area smooth.
