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EN
Furnaces
7.4 Servicing the circuit board
Perform the steps in Accessing the furnace components (on page 30) before proceeding with service.
Relocate the Circuit Board
22
Circuit
Board
I
In furnaces built prior to June 2016, the circuit
board lays on the bottom of the furnace
housing. The board relocation kit (#32596) is
required when replacing the circuit board.
➤ Slide the circuit board out of the furnace.
➤ Disconnect the wires to the existing circuit board.
Refer to the Sequence of operation/wiring
diagrams (on page 9) for specific wiring
information.
➤ Reverse the steps in the next section,”Replace the
circuit board” to complete the installation.
Replace the Circuit Board
23
Circuit
Board
➤ Remove the screws holding the plastic bracket to
the furnace wall.
➤ Slide the bracket out of the furnace and pop the
bracket off of the circuit board.
➤ Disconnect the wires to the existing circuit board.
Refer to the Sequence of operation/wiring
diagrams (on page 9) for specific wiring
information.
➤ Reconnect the wires to the new circuit board.
➤ Feed the circuit breaker switch wires through the
rectangular hole on the new DSI bracket.
➤ Connect the wires to the breaker switch and push
the switch into the new plastic bracket.
➤ Reverse the steps for re-installation. Make sure
all the wires are in the notch and not pinched
between the bracket and the housing.
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