35
EN
Furnaces
7.8 Servicing the limit switch
Perform the steps in Accessing the furnace components (on page 30) before proceeding with service.
Replace the Limit Switch
31
Limit Switch
➤ Remove the two blue wires connecting the circuit
board to the limit switch.
➤ Remove the screws holding the limit switch in
place.
➤ Remove the existing limit switch and replace with
an appropriate temperature-rated switch.
I
To confirm the temperature rating, look at the
base of the limit switch and match the setting.
➤ Reverse the steps for re-installation.
I
On the 89-II furnaces with a limit switch
that has the part number 36205, the switch
requires an operator to reset the switch. The
switch is located above the chamber. Push the
button in to reset the switch.
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