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Robert, RV Mechanic
Category: RV
Satisfied Customers: 13518
Experience:  18 yrs. RV experience including Cummins North West, Country Coach, Monaco Coach - vendor certified.
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Trying to de-winterize our Thor FX40 (2013) and cannot get

Customer Question

Trying to de-winterize our Thor FX40 (2013) and cannot get water to flow out of the large fresh water holding tank into the coach. It appears there is a valve we are missing that allows water to flow from the tank to the hot water and cold water distribution system - valve not open ?!😕
Is the valve in the same boxed in area as the hot water heater or where?
Submitted: 1 year ago.
Category: RV
Expert:  Robert replied 1 year ago.

Hi my name is Robert...

Normally you will have a hot, cold and bypass on the backside of the water heater, opposite of the outside access panel, sometimes you have to pull a panel from the inside to get at them. The hot and cold should be open or valve handle running with the pipe and the bypassed closed or valve handle against the pipe. It will take a few mins. for the tank to fill up and during this time you should feel air coming out of the faucets. Sometimes you also might find a valve near the water pump that is a cutoff so I would also look for that,. Make sure any other valves are set to draw from the tank. Some set ups you have to turn a valve in the plumbing bay to allow you to use the water in the tank....

I would also make sure the water pump is not air bound, crack the outlet on the pump briefly turn the pump on and then tighten the line back up...... IF you have more questions or concerns please feel free to contact me... Robert