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:
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?
It sure seems like you have narrowed the problem to combustion ventilation. Sounds like the flame is smothering itself. One other thing to check is that that draft inducer blower wheel is secure on the motor shaft. As you may know by now, the draft inducer and air circulation blower share the same motor.
As far as removing the restrictor, due to liability issues, you may want to contact the manufacturer.
