Furnace Control Board No Lights

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.

Furnace control board no lights.

A single light is flickering slowly and the other is blinking fast. Check breaker to furnace switch on side of furnace and door safety switch under the bottom door. Only power on the furnace. You would need to confirm you have 24 volts to the board inside the furnace airhandler with a volt meter to make sure though.

There was a surge of power that tripped out the transformer or the 24 v from the transformer and preventing the control board from bringing anything on. Now if for some reason your unit does not use a fuse often the board will be damaged due to the short. I started with the. 2 reset gfi s all around the house if any.

The sequence is like this. Reach out to our technicians at 760 784 9034 for assistance. No led would indicate defective control board. Furnace control board fuse keeps blowing 1 answers hi i have a carrier furnace 48gs 036090311tp with a honeywell t8401c thermostat.

5 10 31 15 02 54 pm seattlepioneer. Do you have a meter. 1 shut off anything that might be connected to the same line your furnace is plugged into. This means your furnace might have insufficient voltage or a short circuit.

Repairs include new transformer and possibly. Fan only operation is running. One light is flickering on on and off while the other flickers on off on. Rule and or policy violation.

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. No light on board no power to board. 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.