We have water under our dometic frig below in the compartment with the washer and in the panel outside. Everything looks caulked. Water is dripping off of the framework in the outside compartment. Can't see a leak anywhere. Ant ideas?
I know you are at a loss but we could sure use some more info or pics to help out with figuring this out. Are you loosing water pressure? Like the water pump cycling on/off without the use of water elsewhere? You say dometic fridge is this the brand? It could be the water line feeding the ice maker. Or do you have a residential fridge if so some have trouble with the defrost drain freezing up and flooding the village. So the more info you can give us the better.
Mike
Like Mike suggested, it could be the water pump or the line feeding an icemaker if you have one.
Water down below could create rust.
When we had our Nimbus, we had a water leak similar to what you describe. The water line to the ice maker was the culprit in ours. Shut of valve for the water line to fridge was on top of the water filter under kitchen sink. Hopefully it's that simple. Water in these areas can cause problems now and later...good luck.
Connecting a switched piezo sounder in the kitchen to the wires powering water pump motor (after pressure switch), then only use water pump for faucet pressure. Knowing when water pump cycles on with faucets closed could indicate a leak somewhere. Turn pump off when leaving coach with water pump switch / LED by front door. Will prevent all unexpected water pipe leaks. A worthwhile modification.
Are you hooked up to city water pressure? Turn it off and go to your water pump to assist locating. As mentioned turn your supply water from your filter off to your ice maker. could this be condensate water from roof top air conditioners?
I'm not familiar with your coach floorplan but at the start of the summer I found the factory installed air vent duct above the Microwave to be installed wrong and it would allow water to leak if the wind was blowing the rain sideways. I fixed it but now every time you close the entrance door you hear the aluminum flapper open and close with the change of pressure. It was silent prior blocked closed.
Today, opened the wet bay. Water was dripping from below the outlet. Removed the panel, water is on top of the freshwater tank. Vacuumed it off, later water is back on top of the tank. Can't feel anything dripping or any wet hoses under there. We were on city water, but are now using out of the tank. We don't seem to be losing prime, the pump only runs when we have a faucet on. Did not have rain today. Turned off water to the inside filter and ice maker yesterday. We are in Ohio so not using air conditioners much at all. The frig is original to the coach.
If the water volume is fairly small, it might be the condensation drip line from the refrigerator. The line could be clogged and leaking or may be disconnected. Have you removed the external vent cover behind the refrigerator and looked for water there?