Furnace Short-Cycling
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 disch...
Forum Discussion
agiannetti wrote:
Also, to answer your question, system NEVER shuts down, just short-cycles.
Regarding that restrictor inside the exhaust vent tube, which decreases the inside dimension of the tube to about 1/2" diameter, do you know it's purpose? When it's removed, no more short-cycling. Can I just remove that restrictor permanently?
My wild guess is the restrictor is there to help with the efficiency. Too much flow out the exhaust is sending heat directly outdoors.
