Question 1

No water flows from any tap even though the pump is running.

Accepted Answer

Possible cause: Water source empty. Confirm the water level and top it up if it's low

Question 2

No water flows from any tap even though the pump is running.

Accepted Answer

Possible cause: Pump wired in reverse. Check the pump's wiring, and refer to its own installation manual for further guidance.

Question 3

No water flows from any tap even though the pump is running.

Accepted Answer

Possible cause: Inlet or outlet pipe has come loose from the pump. Check connections

Question 4

No water flows from any tap even though the pump is running.

Accepted Answer

Possible cause: Pump pipes restricted by kinking. Check pipe runs

Question 5

No water flows from any tap even though the pump is running.

Accepted Answer

Possible cause: The pump's inlet or outlet pipe is blocked.. Check, starting inside freshwater tank

Question 6

No water flows from any tap even though the pump is running.

Accepted Answer

Possible cause: An in-line filter or the pump's own filter is blocked.. Replace filter

Question 7

No water flows from any tap even though the pump is running.

Accepted Answer

Possible cause: There's an air leak in the pipe feeding into the pump.. Look for bubbles and clip the connection down securely

Question 8

Pump does not run

Accepted Answer

Possible cause: Pump fuse blown. Inspect the wiring connections, then fit a replacement fuse of the right rating

Question 9

Pump does not run

Accepted Answer

Possible cause: Battery disconnected. Check connections

Question 10

The cold tap runs normally, but the hot tap's flow is weaker.

Accepted Answer

Possible cause: Blockage in hot pipeline. Disconnect pipes and inspect

Question 11

The cold tap runs normally, but the hot tap's flow is weaker.

Accepted Answer

Possible cause: A kink in the heater's inlet or outlet pipe is blocking flow. Reposition the pipe run if needed, and confirm the hose fitted is the type Carver recommends

Question 12

The cold tap runs normally, but the hot tap's flow is weaker.

Accepted Answer

Possible cause: Hot tap failed or blocked. Disconnect and inspect

Question 13

The cold tap runs normally, but the hot tap's flow is weaker.

Accepted Answer

Possible cause: Heater non-return valve jammed. Seek service attention from an authorised service centre or specialist

Question 14

Water flows from the hot tap but the cold tap's flow is reduced.

Accepted Answer

Possible cause: A kink in the cold water pipe is blocking the flow. Check and re-route if necessary

Question 15

Water flows from the hot tap but the cold tap's flow is reduced.

Accepted Answer

Possible cause: Blockage in cold pipe line. Take the pipework apart from the first Y-connector onward, checking right through to the tap

Question 16

Water flows from the hot tap but the cold tap's flow is reduced.

Accepted Answer

Possible cause: Cold tap failed or blocked. Disconnect and inspect

Question 17

Water flows from the hot tap but the cold tap's flow is reduced.

Accepted Answer

Possible cause: A fitted Carver Crystal water service unit's cartridge has run out. Replace cartridge

Question 18

Both the hot and cold taps have reduced flow.

Accepted Answer

Possible cause: A low battery is making the pump run more slowly than normal.. Check how charged the battery is - see the electrical supply guidance

Question 19

Both the hot and cold taps have reduced flow.

Accepted Answer

Possible cause: Recently-fitted taps could be narrower than needed and restricting flow. Take them off and confirm their bore is at least 6.3mm across

Question 20

Both the hot and cold taps have reduced flow.

Accepted Answer

Possible cause: The pump's filter, or an in-line filter if one is fitted, is partly clogged. Replace filter

Question 21

Both the hot and cold taps have reduced flow.

Accepted Answer

Possible cause: A kink in the pump's outlet pipe is restricting the flow. Check and re-route if necessary

Question 22

Both the hot and cold taps have reduced flow.

Accepted Answer

Possible cause: Water leak. Check all water connections

Question 23

Reduced flow from either taps

Accepted Answer

Possible cause: Pipe kinking restricting flow. Check and re-route if necessary

Question 24

Reduced flow from either taps

Accepted Answer

Possible cause: Bore size difference in taps. Fit taps that share the same bore size.

Question 25

Water heater difficult to drain

Accepted Answer

Possible cause: Hot taps left shut, so air can't get into the hot system to let the water drain. Open taps

Question 26

Water heater difficult to drain

Accepted Answer

Possible cause: Air bleed pipe is kinked or clogged. Unkink or unblock pipe

Bailey Water System

Also Fitted To This Caravan

Master Troubleshooting & Diagnostics Matrix

Error Code / Indicator	Symptom / Meaning	Possible Cause	Step-by-Step DIY Fix	Suggested Actions
`N/A`	No water flows from any tap even though the pump is running.	Water source empty	Confirm the water level and top it up if it's low	DIY Safe
`N/A`	No water flows from any tap even though the pump is running.	Pump wired in reverse	Check the pump's wiring, and refer to its own installation manual for further guidance.	DIY Safe
`N/A`	No water flows from any tap even though the pump is running.	Inlet or outlet pipe has come loose from the pump	Check connections	DIY Safe
`N/A`	No water flows from any tap even though the pump is running.	Pump pipes restricted by kinking	Check pipe runs	DIY Safe
`N/A`	No water flows from any tap even though the pump is running.	The pump's inlet or outlet pipe is blocked.	Check, starting inside freshwater tank	DIY Safe
`N/A`	No water flows from any tap even though the pump is running.	An in-line filter or the pump's own filter is blocked.	Replace filter	DIY Safe
Recommended partsAffiliate linksView 2 optionsHide Check which filter you have. Look inside your water carrier: a cylindrical carbon cartridge screwed onto the bottom of the pump hose is the Aqua Smart filter. Look under the sink: a green cylinder fitted along the blue cold-water pipe is the in-line filter. The handbook doesn't say which filter is fitted, so check yours first. The in-line filter is for 12mm pipe - measure yours before ordering. Filter on the hose in your water carrierWhale WF3000 Aqua Smart Carbon Water Filter~£234.7★ (600+ ratings) - screws onto the end of the pump hose in the water carrier View on Amazon → In-line filter on the cold-water pipeWhale Aquasource WF1230 In-line Water Filter (12mm)~£374.7★ (190+ ratings), third-party seller - fits 12mm pipe; low stock when checked View on Amazon →
`N/A`	No water flows from any tap even though the pump is running.	There's an air leak in the pipe feeding into the pump.	Look for bubbles and clip the connection down securely	DIY Safe
`N/A`	Pump does not run	Pump fuse blown	Inspect the wiring connections, then fit a replacement fuse of the right 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: The handbook doesn't say which fuse rating or size is fitted - match the rating printed on the blown fuse. If it's a glass or ceramic cartridge fuse rather than a blade, these kits won't fit. 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`	Pump does not run	Battery disconnected	Check connections	DIY Safe
`N/A`	The cold tap runs normally, but the hot tap's flow is weaker.	Blockage in hot pipeline	Disconnect pipes and inspect	DIY Safe
`N/A`	The cold tap runs normally, but the hot tap's flow is weaker.	A kink in the heater's inlet or outlet pipe is blocking flow	Reposition the pipe run if needed, and confirm the hose fitted is the type Carver recommends	DIY Safe
`N/A`	The cold tap runs normally, but the hot tap's flow is weaker.	Hot tap failed or blocked	Disconnect and inspect	DIY Safe
`N/A`	The cold tap runs normally, but the hot tap's flow is weaker.	Heater non-return valve jammed	Seek service attention from an authorised service centre or specialist	Professional Intervention Required
`N/A`	Water flows from the hot tap but the cold tap's flow is reduced.	A kink in the cold water pipe is blocking the flow	Check and re-route if necessary	DIY Safe
`N/A`	Water flows from the hot tap but the cold tap's flow is reduced.	Blockage in cold pipe line	Take the pipework apart from the first Y-connector onward, checking right through to the tap	DIY Safe
`N/A`	Water flows from the hot tap but the cold tap's flow is reduced.	Cold tap failed or blocked	Disconnect and inspect	DIY Safe
`N/A`	Water flows from the hot tap but the cold tap's flow is reduced.	A fitted Carver Crystal water service unit's cartridge has run out	Replace cartridge	DIY Safe
Recommended partsAffiliate linksView 2 optionsHide Check which filter housing is fitted (and compare it with your current cartridge) before choosing a replacement: The handbook only says a Carver Crystal unit is fitted. The Filtapac cartridge suits Carver/Truma Crystal housings; the Truma Ultraflow filter suits Ultraflow housings and some older Crystal II housings. Match it to the housing you actually have. Carver/Truma Crystal housingFiltapac Water Filter Cartridge & Seal for Truma/Carver Crystal~£12.964.6★ (380+ ratings), sold by Purely Outdoors (third-party seller) View on Amazon → Truma Ultraflow housingTruma Ultraflow Replacement Water Filter (46020-01)~£15.254.7★ (490+ ratings), genuine Truma part, sold by Xtremeauto UK - low stock when checked View on Amazon →
`N/A`	Both the hot and cold taps have reduced flow.	A low battery is making the pump run more slowly than normal.	Check how charged the battery is - see the electrical supply guidance	DIY Safe
`N/A`	Both the hot and cold taps have reduced flow.	Recently-fitted taps could be narrower than needed and restricting flow	Take them off and confirm their bore is at least 6.3mm across	DIY Safe
`N/A`	Both the hot and cold taps have reduced flow.	The pump's filter, or an in-line filter if one is fitted, is partly clogged	Replace filter	DIY Safe
Recommended partsAffiliate linksView 2 optionsHide Check which filter you have. Look inside your water carrier: a cylindrical carbon cartridge screwed onto the bottom of the pump hose is the Aqua Smart filter. Look under the sink: a green cylinder fitted along the blue cold-water pipe is the in-line filter. The handbook doesn't say which filter is fitted, so check yours first. The in-line filter is for 12mm pipe - measure yours before ordering. Filter on the hose in your water carrierWhale WF3000 Aqua Smart Carbon Water Filter~£234.7★ (600+ ratings) - screws onto the end of the pump hose in the water carrier View on Amazon → In-line filter on the cold-water pipeWhale Aquasource WF1230 In-line Water Filter (12mm)~£374.7★ (190+ ratings), third-party seller - fits 12mm pipe; low stock when checked View on Amazon →
`N/A`	Both the hot and cold taps have reduced flow.	A kink in the pump's outlet pipe is restricting the flow	Check and re-route if necessary	DIY Safe
`N/A`	Both the hot and cold taps have reduced flow.	Water leak	Check all water connections	DIY Safe
`N/A`	Reduced flow from either taps	Pipe kinking restricting flow	Check and re-route if necessary	DIY Safe
`N/A`	Reduced flow from either taps	Bore size difference in taps	Fit taps that share the same bore size.	DIY Safe
`N/A`	Water heater difficult to drain	Hot taps left shut, so air can't get into the hot system to let the water drain	Open taps	DIY Safe
`N/A`	Water heater difficult to drain	Air bleed pipe is kinked or clogged	Unkink or unblock pipe	DIY Safe