Troubleshooting - Whitfield P/N 775 024M Rev. C Installation And Operation Manual

TROUBLESHOOTING

Unplug Appliance Before Performing Any Troubleshooting or Maintenance
PROBLEM CAUSE(S)
1. Fire burns with There is insufficient combustion air.
a lazy orange
flame. Pellets
build up in the
grate and the
window soots
up.
2. Fire goes out The hopper is empty
or stove shuts
down automati- Pellets are not feeding.
cally
The high limit disc has tripped.
There is too much combustion air
for the amount of fuel.
3. Pellets will not Stove has run out of fuel.
feed.
The auger motor or circuit board
may be defective. The pressure
switch tap or hose may be blocked.
Back pressure in venting tripping
pressure switch.
High limit disc may have been
tripped.
Self-aligning bearing in auger motor
may be mis-aligned.
Qualified Technicians Only
SOLUTIONS
Remove any clinkers or ash from the bottom of the grate that
might be obstructing the primary air holes.
Change to a better grade of fuel if necessary.
Check that the damper has been properly adjusted (see
Damper Adjustment Guidelines on page 16).
Inspect heat exchange tubes for ash buildup and remove
ash if necessary.
Clean internal exhaust ducts.
Check if door is sealing properly (see "Door Rope Gasket"
on page 20 for test procedure).
Check for blockage in the air inlet tube or exhaust pipe.
Clean as necessary.
Close ash slide plates.
Have your authorized Lennox Hearth Products dealer check
your combustion blower.
Refill hopper.
See pellets will not feed on this page.
Allow stove to cool for 1 hour and re-light. If the stove has
been operating at a medium to high burn rate and the con-
vection (room air) blower has been turned down low then the
blower should be turned up higher. If this problem persists
(particularly at lower burn rates), then the high limit disc
should be replaced by your authorized Lennox Hearth Prod-
ucts dealer.
Adjust the damper to reduce combustion airflow. (see
Damper Adjustment Guidelines on page 16).
Refill hopper.
Check to ensure that there is no blockage in the pressure tap
or hose. Have your authorized Lennox Hearth Products
dealer diagnose the problem and clean or replace any nec-
essary parts.
If new installation check for excessive 90˚ bends, long hori-
zontal runs or excessive vertical run of 3" pipe. Possibly
change to 4" pipe. If older installation check for excessive
ash accumulation in pipe or other obstructions. Clean out
pipe.
Allow stove to cool.
Gently tap the auger motor.
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