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Auto-Sleepers • Electrical System
Covers: Berkshire, Hampshire

Auto-Sleepers Electrical System

(Berkshire & Hampshire, 2010 Model Year)

View official manual on manufacturer's site ↗

Master Troubleshooting & Diagnostics Matrix

Error Code / IndicatorSymptom / MeaningPossible CauseStep-by-Step DIY FixSuggested Actions
N/A
Habitation 12V does not operate
Main 20A fuse blown
Check/Replace
DIY Safe
N/A
Habitation 12V does not operate
Battery discharged
Recharge
DIY Safe
N/A
Habitation 12V does not operate
The control panel's power switch is set to off.
Switch to on
DIY Safe
N/A
Habitation 12V does not operate
Vehicle ignition 'on'
Switch 'off' ignition
DIY Safe
N/A
Habitation battery not charging
Main 20A fuse blown
Check/Replace
DIY Safe
N/A
Habitation battery not charging
Relay fault
Refer to dealer
Professional Intervention Required
N/A
Habitation battery not charging
Contacts dirty/loose on battery terminals
Clean and check for tightness
DIY Safe
N/A
Habitation battery not charging
Poor earthing
Check earthing to chassis point
DIY Safe
N/A
Battery does not hold its charge
Failed battery
Check cells with hydrometer, change electrolyte if necessary
Professional Intervention Required
N/A
Battery does not hold its charge
Current being drawn when not in use
Check all appliances are off
DIY Safe
N/A
Battery discharges over a short time with appliances operating
Poor battery cell condition
Check cells with hydrometer
DIY Safe
N/A
Battery discharges over a short time with appliances operating
Failed battery
Change battery
DIY Safe
N/A
Battery discharges over a short time with appliances operating
Battery not fully charged
Fully recharge battery
DIY Safe
N/A
One or more 12V appliances have no power reaching them.
Circuit fuse blown
Track down the fault and fit a replacement fuse of the identical rating.
DIY Safe
Recommended partsAffiliate linksView 2 optionsHide

Check whether the blown fuse is a standard or a mini blade fuse (mini ones are roughly half the size), then choose the matching kit:

This fault doesn't say which fuse rating has blown, only to replace it like-for-like. Both kits cover the common ratings (5A-30A) - match the rating printed on the blown fuse.

Standard blade fusesCar Fuse Kit - 60pc Assorted Blade Fuses (5A-30A) with Storage Case and Fuse Puller~£5.994.5★ (1,500+ ratings), sold by KANGRUI, dispatched by Amazon - includes 15A blade fuses plus a puller and storage case
View on Amazon →
Mini blade fusesNilight 120pc Mini Blade Fuse Assortment (5A-30A, ATM/APM) with Fuse Puller~£5.244.5★ (2,500+ ratings), sold by Amazon - includes 15A mini blade fuses
View on Amazon →
N/A
No power on 12V socket outlet
Fuse 9 blown
Track down the fault and fit a replacement fuse of the identical rating.
DIY Safe
Recommended partsAffiliate linksView 2 optionsHide

Check whether the blown fuse is a standard or a mini blade fuse (mini ones are roughly half the size), then choose the matching kit:

This fault doesn't say which fuse rating has blown, only to replace it like-for-like. Both kits cover the common ratings (5A-30A) - match the rating printed on the blown fuse.

Standard blade fusesCar Fuse Kit - 60pc Assorted Blade Fuses (5A-30A) with Storage Case and Fuse Puller~£5.994.5★ (1,500+ ratings), sold by KANGRUI, dispatched by Amazon - includes 15A blade fuses plus a puller and storage case
View on Amazon →
Mini blade fusesNilight 120pc Mini Blade Fuse Assortment (5A-30A, ATM/APM) with Fuse Puller~£5.244.5★ (2,500+ ratings), sold by Amazon - includes 15A mini blade fuses
View on Amazon →
N/A
No power on 12V socket outlet
12V plug incorrectly connected/wired
Check plug
DIY Safe
N/A
230V system inoperative
No site power
Check site supply
DIY Safe
N/A
230V system inoperative
RCD/MCB switches tripped out
Reset circuit breakers
DIY Safe
N/A
RCD/MCB keeps tripping out
Fault on 230V supply
Check supply including polarity
DIY Safe
N/A
RCD/MCB keeps tripping out
Faulty appliance
Switch every appliance off, reset the circuit breakers, then switch appliances back on one at a time until the fault reappears - that identifies and isolates the faulty one.
DIY Safe
N/A
RCD/MCB keeps tripping out
Overload on current consumption by appliance
10A maximum available; do not use appliance
Professional Intervention Required
N/A
Battery charger does not operate
Charger switched off
Switch on at control box/check MCB is on
DIY Safe
N/A
No 230V output from the PSU
The lead linking the site supply to the vehicle isn't plugged in
Check the lead is connected correctly at both ends.
DIY Safe
N/A
No 230V output from the PSU
RCD switched off
Reset the RCD.
DIY Safe
N/A
No 230V output from the PSU
RCD not operating
Check the supply polarity; if the RCD keeps failing, contact your dealer, as there's likely an equipment or wiring fault.
DIY Check / Tech Fallback
N/A
No 230V output from the PSU
MCB switched off
Reset the MCB by switching it off (down) then back on (up); if it keeps tripping, contact your dealer, as there's likely an equipment or wiring fault.
DIY Check / Tech Fallback
N/A
No 230V output from the PSU
No or deficient supply from the site
Contact the site warden for assistance.
Professional Intervention Required
N/A
Reverse polarity warning light is illuminated on the PSU
—
This light is designed to catch a reversed/crossed live and neutral supply on UK-wired sites - if it comes on, suspect a fault with the site's own supply, or its connecting cable (outside the UK it can light up with no actual fault present, so check with the site warden). It can also light up quite normally when running from certain generators, since some centre-tap their earth connection rather than earthing the neutral directly, leaving both conductors roughly 110V above earth - usually still safe to keep using in that case, but check the generator's own handbook.
DIY Check / Tech Fallback
N/A
Control Panel has no display
—
The screen's backlight might have simply turned itself off - tap select to wake it again. If that's not it, work through the batteries and fuses, confirm both the shutdown switch and the charger switch on the PSU are set to on, and that mains is plugged in. Also check the lead running between the PSU and the back of the panel. Still nothing? Get in touch with your dealer.
DIY Check / Tech Fallback
N/A
12V power turns off unexpectedly
—
Usually the battery-protect feature has stepped in to protect the vehicle and/or leisure battery, or the engine's been started, in which case equipment is disconnected automatically to meet EMC requirements while driving.
DIY Safe
N/A
Control panel is locked or behaves erratically
—
Check you're following the control panel's own handling instructions. If the panel's software has crashed, reboot it by turning off the PSU's isolator switch, waiting 30 seconds, then switching it back on.
DIY Safe
N/A
No 12 volt output from the PSU
No 230V supply
Work through the 230V checks above first.
DIY Safe
N/A
No 12 volt output from the PSU
Charger not switched on
Turn the charger switch on - it will illuminate when active.
DIY Safe
N/A
No 12 volt output from the PSU
Battery not connected and/or not charged
Fit a charged battery.
DIY Safe
Recommended partAffiliate linksView partHide

Only if your leisure battery needs replacing - check the size, type and terminal layout of the one fitted now, and that your charger supports it, before ordering:

Leisure batteries vary by vehicle (size, capacity and type - lead-acid, AGM, EFB or lithium). This is a widely used 100Ah EFB battery, not a documented exact match for your vehicle.

Leisure battery (100Ah EFB)Yuasa L36-EFB 12V 100Ah Leisure Battery~£1384.3★ (119 ratings), sold by Amazon - established battery brand
View on Amazon →
N/A
No 12 volt output from the PSU
Power button on the control panel not switched on
Turn the power on at the control panel.
DIY Safe
N/A
No 12 volt output from the PSU
Battery flat, or its fuse blown
Recharge the battery, check the fuses, and confirm charging voltage is actually present at the battery.
DIY Safe
N/A
No 12 volt output from the PSU
A fuse has blown
Make sure none of the fuses have blown and each one matches the rating shown on the fuse table.
DIY Safe
N/A
No 12 volt output from the PSU
Equipment switched off or unplugged
Check the equipment itself is switched on and properly connected to the 12V supply.
DIY Safe
N/A
No 12 volt output from the PSU
PSU has overheated and shut down automatically
Reduce the load on the system and let the PSU cool down - it will restart on its own once it has.
DIY Safe
N/A
No 12 volt output from the PSU
Some other fault
Contact your dealer.
Professional Intervention Required