Have HVAC Questions? Ask an HVAC Expert for Answers
When you try heat does small fan run.
Make sure you have no blocked out on vent pipe. You can try cleaning th e fitting on there air switch and small fan housing, Remove hoses and clean with aper clip. Retry furnace. Russ
Need full model number of furnace. Russ
Does the small vent motor come on when you call for heat?
Do you have a volt meter to see if we are losing power at the vent motor? Once thermostat calls for heat the vent motor should run non stop until thermostat is satisfied.
LED should be ON solid, not blinking when vent motor comes on. Is there a flash pattern such as 5 flash pause that may indicate an open rollout switch or anything prior to the 2 flash code?
Here is a link to the manual I have. See page 36 for error codes
I will be in and out. If we are not getting an error code on that list, the inducer should never stop until heat call is satisfied.