Lennox Furnace Control Board Fuse

Cartridge fuse flat blade dual element time delay class rk5 250vac 125vdc 200a 7 1 8 l 1 9 16 dia.

Lennox furnace control board fuse.

I was blowing the 5 amp fuse on the control board for my forced air gas furnace. How old is it. If you have a gas furnace one of the valves may be failing. It was a honeywell thermostat.

Not any part on blower furnace. Press and release the limit control switch to rest your lennox furnace. Earlier it was trying to fire but the ignition rod did not work and the diagnostic led s were alternating. Examine your furnace and look for a raised button or switch to the right of the ignition control box or the limit control switch.

This video provides step by step instructions for replacing the control board on lennox furnaces. Your furnace s control board has a separate fuse that protects it from getting too hot. I removed all the wires going to my thermostat and it would not blow the fuse when powered on. The thermostat where you control temp.

Once you find the control panel lift the panel up and away from the appliance you can set this aside for now. Do you know the model of your lennox thermostat. My lennox 8ouhg3 75a 2 furnace control board isnt working my lennox 8ouhg3 75a 2 furnace control board isn t working and repeatedly popping the 3a fuse. I changed thermostat without turning off power and think i blew fuse.

I turned off the input power and attached terminal r 24 vac power to thermostat and the fuse blew. The most common reason for replacing t. My furnace is a concord model cg90ub. House was built in 2004.

When a valve is unable to open and close properly it can sometimes heat up causing an electrical short that blows a fuse. Where is fuse location on lennox merit series control board. Im going to show you how to fix this problem with just a screwdriver and maybe 5 3 amp fuses and we will fix the 3 amp short im just making this video for my. Part number part description part link 11h36 lennox 11h36 control board kit view lennox part 11h36 11k83 lennox 11k83 speed controller tsc5 view lennox part 11k83 11k84 lennox 11k84 speed control tsc6 view lennox part 11k84 12j99 lennox 12j99 integrated furnace control board view lennox part 12j99 12w64 lennox 12w64 integrated.