2018 Furnace - Atwood/Dometic model AFSD20141 is short-cycling.I tried the following everything:Jumped the thermostat jumped the high temp limit switch jumped the sail switch removed discharge vents to assure no blockages checked return air for obstr...
Dometic's response to the purpose of the piece inside the vent tube:"There is no direct purpose for the piece, it just keeps the unit from water back flow issues."
I pulled out the orifice. It looked clean and clear, no noticeable debris. I blew out the inside of the valve with an air compressor. Put it back together and it worked fine (just like it had every other time I've messed with it, only for the prob...
dougrainer wrote:The difference in the restrictor may make a difference. BUT, Has the furnace operated correctly prior to this problem? If so, then it should have malfunctioned from the beginning if the restrictor is wrong. DougGood point. I bought ...
Just received interesting information from Dometic (see below). There are TWO, almost identical vent tubes. However, their restrictors are different sizes (the one I have is more restrictive than the other). Perhaps I have the wrong one. I have a...
