Troubleshooting guide
Page 82
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Check all wiring connections related to the Vacuum system first.
Check the 2
Gray
wires that are plugged into the vacuum switch.
If the wires are plugged in, check the opposite ends that are plugged into
the control board. Make sure the wires a fully pushed into the Molex
connector that plugs into the control board. They may look OK, but in fact
may not be making contact the pins from the control board. Push the 2
Gray wires into the Molex connector to ensure they are seated properly.
Check the
Gray
wires for continuity if needed with an OHM meter.
•
If all wires and connections are correct, check the vacuum switch.
Unplug the 2
Gray
wires and jump them together. Run the stove and see if
that corrected the problem.
If the stoves runs, check the vacuum reading in the stove using a
magnehelic gauge connected to the vacuum hose. Be sure to leave the 2
Gray
wires jumped together or the stove will shut down again. The Set
Point for the Vacuum Switch is .05” WC negative pressure. The stove
typically has a reading of between .1” and .20” WC negative pressure
. See
Figure 7 on Page 68 for information on how to check the vacuum reading.
If the vacuum reading is relatively low, check the intake air damper to see
if it is wide open. Adjusting the damper to a position that is more closed
will increase the Vacuum reading.
If dealing with an intermittent Vacuum problem do not overlook the possibly that a
combustion fan that is getting too hot and the
Thermal Protection
is shutting the fan
down. If you suspect the Thermal Protection is shutting the fan down, check the
combustion fan
immediately
after the stove shuts down. Once the fan cools down it may
start running again.
2. Heat
The number 3 LED light on the Heat Advance bar will flash if a “Heat Related” event
occurs. The stove shuts down and the number 3 LED light starts after the stove cools
down and the fans shut off. This may take approximately 30 minutes, depending on how
hot the stove is when the “Heat Related” event occurs.
This may be caused by:
a.
Operator error
b. Component Failure. Which component may be the cause?
High Limit Switch
Proof of Fire Switch
Control Board
Wiring Harness
Wiring Connections