Thermocouple Replacement - Quadra-Fire Pioneer-III-ABK Owner's Manual

6. Thermocouple Replacement

• To replace a thermocouple, ensure the appliance is
completely cool.
• Shut off power to the appliance or unplug the control
board from the junction box.
• Remove the dust cover by lifting up and pulling out
to expose the control board.
• Remove the thermocouple wire that needs replacing
from the control board by pulling up on it and feeding
it back through the grommet. See Figure 4.5.
Figure 4.5 Control Board
• Next, open the appliance door, look for the
thermocouple in the top left or top right side of the
firebox. Once located, using a 3/16" Allen wrench,
remove the (2) Allen bolts, then pull the cover plate
(with the Thermocouple guard attached to it) down
and off of the thermocouple. See Figure 4.6.
Figure 4.6 Cover Plate with Thermocouple Guard
30
Thermocouple
Plugs
Guard
Remove (2)
Allen Bolts
Cover Plate
Quadra-Fire • Pioneer III Owner's Manual • 4182-900 • Rev D • 08/19
• Using a long 3/8" nut driver, remove the (2) bolts in
through the hole holding the thermocouple on. See
Figure 4.7.
Figure 4.7 Remove Bolts (Access cover removed)
• Pull the thermocouple wire up and out of the hole
while feeding the wire up from the bottom.
• Install the new thermocouple by feeding the end with
the plug on it down through the hole and out through
the bottom opening.
• Secure the thermocouple to the appliance and
reinstall the cover plate with the thermocouple
guard. Connect the wires to the control board and
the dust cover.
Bolts