Troubleshooting guide

Page 41
Convection Fan
Room Air Fan – In the York Insert the fan is located near the back right-hand-side of the
stove under the hopper and mounted to the sheet metal Air Jacket. In all Freestanding
models the fan is located, either in the back of the pedestal or behind the Belly Ash pan in
the Leg models. Heat that is generated within the Heat Exchanger can easily be
transferred into the room; through use of this fan. The Room Air Fan draws cool air from
the room, through the back of the stove, past the internal electrical components for
cooling circulation, and then is forced through nine Heat Exchange Tubes (Insert models)
and sixteen Heat Exchange tubes in the Freestanding models to heat the room.
As an electrical component, the troubleshooting of the convention fan can be broken
down to a defective fan, a defective control board, or issues related to the wiring. If the
stove lights up and the room fan never comes on the High limit sensor would eventually
shut the stove down. Follow these steps to troubleshoot the convection fan:
 Check the wiring connections to the fan. The White wire from the fan
connects to the Terminal Block in the back of the stove and the Black wire
from the fan is connected to the Pink wire in the wiring harness.
 If all connections are tight, check for Voltage at the pink wire.
Attention: The control board sends power to the Convection blower for the first 30
seconds after turning the stove on and then shuts it off. If in doubt, bypass the Proof
of Fire Switch and wait 5 minutes to check for voltage coming from the control
board. After waiting 5 minutes you should see the ON/OFF light quit blinking and
stay on constant. At that point you should read approximately 80 volts.
 Hot Wire the fan, using a power cord with 2 ¼” Male spade connectors at
this time to see if the fan is defective. If the fan runs, continue trouble
shooting the fan circuit in the stove.
 If there isn’t any voltage on the Pink wire, check to make sure the Pink
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 Pink wire into
the Molex connector to ensure it is seated properly.
 Check the Pink wire in the harness for continuity if needed with an OHM
meter.
 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. (See note above indicating
when voltage is present, voltage reading will be between 80 volts and line
voltage.)
NOTE: The Vacuum switch will affect the way the Convection fan behaves. If the
Vacuum switch is closed when the stove is turned on, the convection fan will not run the
initial 30 seconds, but will turn on after 5 minutes. This may happen if the switch is
defective or if a stove is running in Fully Automatic “SmartStat” mode in the cool down
phase and the Thermostat calls for heat again.