Troubleshooting guide
Page 89
Check the wiring connections to the fan. The
White
wire from the fan
connects to a White wire in the Harness that connects to the Terminal
Block in the back of the stove and the
Black
wire from the fan is
connected to the
Blue
wire in the wiring harness. There is a 3
rd
wire
coming from the Combustion fan that is not used in the models with the
digital control board. This is a
Brown
wire and it is tied back in the
harness.
If all connections are tight, check for Voltage at the
Blue
wire.
Attention: The control board sends line voltage to the Combustion blower for the
first 30 seconds after turning the stove on and then it drops to a lower voltage for
the start-up cycle. The voltage is approximately 90 volts.
Hot Wire the fan, using a power cord with a ¼” Male and ¼” Female
spade connector at this time to see if the fan is defective. If the fan runs,
continue trouble shooting the fan circuit in the stove. Replace it if it
doesn’t.
If there isn’t any voltage on the
Blue
wire, check to make sure the
Blue
wire is inserted properly into the Molex connector that plugs into the
control board. The wire may appear to be inserted properly, but sometimes
is not connected to the pin on the control board. Push the Blue wire into
the Molex connector to ensure they are seated properly.
If the wire is inserted properly,
carefully
check for voltage on the pin-out
on the control board. If no voltage is present on the control board, the
control board is bad and needs to be replaced.
Check both wires in the harness for continuity if needed with an OHM
meter. (White and Blue wire)
Power Cord, Wiring Harness & Terminal Block
These are items that are frequently overlooked when troubleshooting the stove. When
Diagnosing electrical problems, be sure to first check all wires for damage and make sure
all connections are tight. Check all wires in the Molex plug at the control board. If all else
fails check wires that appear to be in good condition for continuity. It may be a problem
that you can’t see. Use a good quality digital Volt/Ohm meter to check for Continuity.