Hardin-F-180 Furnace Thermocouple Replacement
by jhudson20 in Workshop > Metalworking
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Hardin-F-180 Furnace Thermocouple Replacement
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How I figured out how to replace the thermocouple on a Hardin 180 furnace.
Removal of Mesh Gaurd
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Remove the 6 screws with washers holding mesh Heat guard in place. Ceramic cones may or may not stay in place.
Lid Assembly
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Remove 4 screws on back holding lid assembly to furnace body. Set aside.
Access Plate
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Turn oven assembly upside down and remove the 4 screws holding it in place
Removal of Thermal Couple
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Remove the 2 screws holding coupler to body.
Temperature Control Panel
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Loosen screws from back of control panel where thermocouple is connected to. ( keep in mind the proper placement colors of the wires)
Swapping Out Coupler
Pull old out and place in new.
Reattach Thermocouple
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Reattach thermocouple to body and reattach wires to back of control panel. Zip tie loose wire to the rest of the wires.
Reattach the Rest
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Reattach access panel, lid assembly, and mesh guard. In that order.
Test
Turn on. Run in 3 wave.
1st- 400 C;
COOL ;
2nd-800 C;
COOL;
3rd-1150 C
Never leave unattended.
1st- 400 C;
COOL ;
2nd-800 C;
COOL;
3rd-1150 C
Never leave unattended.