Installation Guide

W415-0702 / 10.30.08
47
14.0 TROUBLEShOOTING
SYMPTOM TEST SOLUTION
ALL TROUBLE SHOOTING PROCEDURES SHOULD BE CARRIED OUT BY QUALIFIED TECHNICIANS OR INSTALLERS.
Vacuum hose or
fittings are blocked.
The air inlet,
burnpot, interior
combustion air
chambers,
combustion blower,
or exhaust pipe are
blocked with ash or
foreign material.
The firebox is not
properly sealed.
Vent pipe is
incorrectly
installed.
The vacuum switch
wire connections
are bad.
The gray wires are
pulled loose at the
connector on the
wiring harness.
Combustion blower
failure.
Control board not
sending power to
combustion blower.
Control board not
sending power to
vacuum switch.
Vacuum switch has
failed (very rare).
- Unhook the air hose from the vacuum switch and blow through it. If air flows freely, the hose and tube
are fine. If air will not flow through the hose, use a wire coat hanger to clear the blockage.
- Follow all cleaning procedures in the maintenance section of the manual.
- Make sure the door is closed and that the gasket is in good shape. If the ash door has a latch, make
sure the ash door is properly latched and the gasket is sealing well.
- Check to make sure the vent pipe installation meets criteria in the manual.
- Check the connectors that attach the blue wires to the vacuum switch.
- Check to see if the blue wires are loose at the connector.
- With the heater on, check to see if the combustion blower is running. If it is not, you will need to check
for power going to the combustion blower. It should be at 115 volts. If there is power, the blower is
defective. If there is not, see the next step.
- If there is no current going to the combustion blower, check all wire connections. If all wires are
properly connected, you have a defective control board.
- There should be a 5-volt current (approximately) going to the vacuum switch after the heater has been
on for 30 seconds.
- To test the vacuum switch, you will need to disconnect the air hose from the body of the heater. With the
other end still attached to the vacuum switch, very gently suck on the loose end of the house (you may
want to remove the hose entirely off the heater and the vacuum switch first and make sure it is clear). If
you hear a click, the vacuum switch is working. BE CAREFUL, TOO MUCH VACUUM CAN DAMAGE
THE VACUUM SWITCH.
CAUTION: When checking connections, installing jumper wires (for test purposes only) or replacing components,
unplug heater from the receptacle to prevent electrical shock or damage to the components.
NOTE: Many of the following tests will require that the side panels are removed from the heater or the insert be
removed from its cavity to access the components. Before troubleshooting always confirm that all components
are clean and free of ash build up.
HEATER SHUTS OFF AND THE #2 LIGHT FLASHES
TP - TROUBLE SHOOTING_PELLET_45