The video i watched showed exactly where to remove the wires from the old relay and plug them into the new fan blower control board.
Furnace control board fuse.
Many times the thermostat wires will short out against the body of the furnace or air conditioner.
If you are a home diy type of person furnace control boards can be bought online for 50 250 dollars depending on the furnace.
With the exception of the mounting points this board seems to be an exact replica of the honeywell st9120c4057 control board that was in my furnace.
I got the part number off of the board and typed it into amazon search.
If your furnace needs a new control board the average cost for an hvac technician to install it is 400 700 dollars.
Also replaces select control board models from ti utec and white rodgers.
The control monitors and sequences operation and offers 100 percent gas shutoff in case of ignition failure.
The lil popper allows you to manually reset the fuse instead of replacing a fuse everytime.
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It isn t the hsi inducer or blower motor as these are all high voltage parts not low voltage.
Doing it yourself is very tempting so let s look at a few things needed to do it.
I removed the control board and found that the fan relay had burnt out.
These furnace control boards and fan blower controls replace oem control boards in direct wire for wire replacement.
We have a really good tool that you can use to save fuses when troubleshooting low voltage shorts called the lil popper.
Shop grainger today for a reliable furnace control board for your hvac system.
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Once complete i snapped the board into the pre drilled mounting holes on my unit plugged the fuse block back in turned on the circuit breaker and adjusted the thermostat.