furnance turned off
2001 cardinal furnace has been working great. went out today and turned on. I flipped switch to high fan speed and I heard no difference. in 2 min furnace turned off. I noticed not much air was c...
Forum Discussion
Fulltimer50 wrote:Old-Biscuit wrote:
Thermostat FAN does NOT control furnace fan. That is for the A/C Unit fan
Furnace fan is controlled by furnace via t-stat
Place t-stat fan control in AUTO
Set t-stat to HEAT
??Turn temp setting down below current air temp??
Furnace fan should start and run for up to 90 sec for 'purge'
Then ignitor/main gas get voltage
Main flame lights off
And air from floor registers starts getting warm
Rig warms up to set point
Main flame shut down
Fan runs for cool down cycle (cools off heat exchanger) then shuts down
So does furnace fan come on when you hear 'click' at t-stat when you set it for heat?
No fan first..no furnace
Then you need to check t-stat, DC fuse to furnace fan motor, fan motor local on/off switch etc.
:S :S
IF you stand on your head :H
:B
Hey OP.......
Don't hear 'click' at t-stat you when call for heat then t-stat is suspect.
Which t-stat?
