BAC Forum
General Boards => Technical Support => Topic started by: Bobby Kirk on April 18, 2023, 09:09:40 PM
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THANKS FOR THE FORUM;
i HAVE A 2006 Beaver Marquis. Haver no power coming to either dump valves.
Can someone tell me where the fuse for switches are. Cant seem to locate. Thanks
/Bobby Kirk
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Bobby,
Check the fuse panel in the bedroom. It'd probably a 15A fuse that powers the water pump, water fill, vacuflush pump, and the dump valves. See pg 243 in your owners manual for the fuses and pg 54 of the 2003 Marquis wiring diagrams (should be same or very close to your 2006) for the circuit.
Steve
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The dump valves that were OE on our coach (Dumpmaster) have an inline 5a fuse, one for each valve. You'll have to get behind your wet bay panel to find the fuses. I moved mine to the front of the wet bay panel using panel mount fuseholders. Easy access now. New style Dumpmaster valves are a worthwhile upgrade. Stronger motor, better switches and wiring (power direct to motors).
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Thanks for info is fuse in a yellow holder?
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very well could be. Correction: Drainmaster, not dumpmaster!
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If you think your valves were stuck and blew the fuse, first step is to loosen the 4 mounting screws that hold the valve between the flanges. This will allow the valves to operate more easily. If Drainmaster valves, there is a manual override (1/8 allen key) so you can operate the valves manually. Make sure there is no power to the valves when you use the manual override.
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Thanks for input will continue the search.
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does anyone have an idea where the 5amp fuse is for dump valves. cant seem to locate
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If you have torn apart your wet bay to access the valves, i suspect the 12v source is common to one of the other switches on the wet bay panel. One way to check would be to jumper a known hot lead to the dump valve switch to see if that operates the motor.
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The several times I have had issues with the dump valves, I initially suspected failed motors, but the cause has been a stuck valve every time. Try the manual override a couple of times to cycle the valve open / close, then try the switch (or jumper) again.
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both fuses to switches are good found the wire for dump valve in bathroom on 10 amp fuse (good) have power to that line
but havent been able to trace it down to switches took panel loose in bath but wire goes in to a bundle and cant trace from there
has to be something in common with both switches because they both went out at same time. all help appreciated much
Bobby Kirk
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Only option might be to run a new power wire from the fuse you found to the valve's switches.
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Thanks for help Bill. After checking everything and moving wires both valves are working. Has to b connection somewhere.
Thanks for help.
Bobby Kirk
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Bobby,
It's probably a connection in the water bay as it is a high humidity environment. The connections at the switches would be my first focus. I suspect they run a single wire each for 12v & gnd to one of the switches and then branch it off to the other switch.
Steve