No light on board no power to board.
Furnace control board no lights.
Furnace control board fuse keeps blowing 1 answers hi i have a carrier furnace 48gs 036090311tp with a honeywell t8401c thermostat.
Do you have a meter.
No light on the circuit board i have a goodman furnace and is not turning on when i turn on the heat on the thermostat.
I verified 110v getting to the board i 39 ve unplugged the furnace and reset answered by a verified hvac technician we use cookies to give you the best possible experience on our website.
Fan only operation is running.
Rule and or policy violation.
Gas and oil home heating furnaces goodman furnace.
2 reset gfi s all around the house if any.
I can run the fan on continuously but when i put the heat to on on the t stat the 5 amp fuse on the control board lh33wp003a in the furnace blows.
You would need to confirm you have 24 volts to the board inside the furnace airhandler with a volt meter to make sure though.
I started with the.
Reach out to our technicians at 760 784 9034 for assistance.
The sequence is like this.
One light is flickering on on and off while the other flickers on off on.
I have no lights on my rheem control board.
A single light is flickering slowly and the other is blinking fast.
This means your furnace might have insufficient voltage or a short circuit.
5 10 31 15 02 54 pm seattlepioneer.
End result is no power is getting terminal l1 on the circuit board.
Check breaker to furnace switch on side of furnace and door safety switch under the bottom door.
Only power on the furnace.
No led would indicate defective control board.
Now if for some reason your unit does not use a fuse often the board will be damaged due to the short.