Bailey • Water System
Covers: Autograph III, Alliance Silver, Adamo I
Autograph III models: 79-4i, 74-4, 79-2F, 74-2, 79-4F, 79-4T, 69-2, 81-6
Alliance Silver models: 70-6, 76-2T, 76-4, 66-2, 76-4T, 76-2, 59-2
Adamo I models: 60-4, 69-4, 75-4i, 75-4T, 75-4DL

Bailey Water System

(Oct 2020 Model Year, Autograph / Alliance / Adamo)

Sourced from Bailey's Oct 2020 model year owner's manual for the Autograph / Alliance / Adamo motorhome range. If your motorhome is a different age or range, some details - such as the exact control panel brand or chassis-component generation actually fitted - may not match. Always cross-check against the handbook that came with your specific motorhome.

View official manual on manufacturer's site ↗

Also Fitted To This Caravan

Master Troubleshooting & Diagnostics Matrix

Error Code / IndicatorSymptom / MeaningPossible CauseStep-by-Step DIY FixSuggested Actions
N/A
Pump keeps running non-stop, even when every tap is shut
Voltage has dropped well below its level at the last adjustment, or the water container has run dry
Re-adjust switch or refill container.
DIY Safe
N/A
Pump won't run at all
Blown fuse, faulty connections, or excessive running
Check fuses and connections. If caused by excessive running, replace the pump and re-adjust the pressure switch.
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 switches on and off in a repeating pattern (tap flow pulses, or the water temperature cycles hot-cold-hot-cold instead of staying steady)
Voltage has risen above its level at the last adjustment
Re-set the pressure switch. A Whale Surge Damper (WS7205) can be fitted if the issue keeps happening.
DIY Safe
N/A
Pump makes a lot of noise but produces no water (it's air-locked)
The pump has become air-locked, struggling to expel air while drawing water in - this typically happens right after the water container is refilled
Disconnect the pump from its socket so it floods, then plug it back in. When refilling, the order matters: disconnect first, lower the pump into the container, and only then reconnect it.
DIY Safe

Frequently Asked Questions

Q: How do I drain down and winterize the water system on my motorhome?ⓘ

Open every tap in the vehicle and push the mixer lever handles up to the central position so both hot and cold sides can empty out. Take the shower head off by hand, give it a shake to clear any trapped water, and keep it somewhere dry. Then open the drain valve - on Advance/Alliance models this sits beside the on-board tank, on Autograph models it's next to the boiler - and switch the pump on to push the rest of the water out of the system.

For a proper full drain, it's worth doing the fresh and waste tanks manually too: there's an inspection cap on top of the tank giving access to a drain plug, and for the waste tank, move the vehicle over to a proper disposal point and open the drain tap behind the rear wheel to let it empty. Leaving any water in over a freezing night is enough to cause serious, permanent damage to the system, and frost damage isn't something your warranty will cover - so always finish with the manual draining step to be sure everything's properly empty, not just what the pump alone can get.