6
GB
TROUBLESHOOTING
Continued
FAULT CONDITION
POSSIBLE CAUSE
REMEDY
Heater ignites but ignition control
assembly shuts heater off after a
short period of time (ON/OFF switch
light remains on)
1.Pump pressure incorrect
2. Dirty air intake, air output, and/or lint
lter
3.Dirty fuel
lter
4. Obstruction in nozzle assembly
5. Photocell assembly not properly installed
(not seeing the
ame)
6. Dirty photocell lens
7.
Bad electrical connection between
photocell and ignition control assembly
8. Defective photocell
9. Defective ignition control assembly
1. See
Pump Pressure Adjustment
, page 8
2. See
Air Output, Air Intake, and Lint Filters
,
page 8
3. See
Fuel Filter
, page 6
4. See
Nozzle Assembly
, page 8
5.
Make sure photocell boot is properly
seated in bracket
6. Clean photocell lens
7. Check electrical connections. See
Wiring
Diagram
, page 17
8. Replace photocell
9. Replace
ignition control assembly
ON/OFF switch light does not come
on when switch is turned to the ON (|)
position and heater does not start
1. No power to heater
2. Bad electrical connections
3. Electrical short in ignitor
1. Verify that power cord is plugged into an
electrical outlet and that the circuit breaker
in the electral panel is reset
2. Check electrical wiring and connections.
See
Wiring Diagram
, page 17
3.Check
ignitor
wiring. If no problems are
found, replace ignitor (see page 7)
ON/OFF switch light comes on when
switch is turned to the ON (|) Position
but turns off after
ve seconds
1. Electrical short in motor
1.Check motor wiring. If no problems are
found, replace motor
WARNING: High voltage!
WARNING: High voltage!
SERVICE PROCEDURES
WARNING: Never service heater while it is plugged in,
operating, or hot. Severe burns and electrical shock can
occur.
UPPER SHELL REMOVAL
1. Remove screws and lock washers along each side of heater
using 5/16” nutdriver. These screws attach upper and lower
shells together.
2. Lift upper shell off.
3. Remove fan guard.
FUEL FILTER
(35.000, 64.000 and 70.000 Btu/Hr Models)
1. Remove side cover screws using 5/16”nutdriver.
2. Remove side cover.
3. Pull rubber fuel line off fuel
lter neck.
4. Carefully pry bushing and fuel
lter out of fuel tank.
5.Wash fuel
lter with clean fuel and replace in tank.
6.Attach rubber fuel line to fuel
lter neck
7.Replace side cover.
FUEL FILTER
(100.000 and 150.000 Btu/Hr Models)
1. Remove side cover screws using 5/16”nutdriver.
2. Remove side cover.
3. Pull upper fuel line off fuel
lter neck.
4. Carefully pry bushing, lower fuel line, and fuel
lter out of fuel
tank.
5. Wash fuel
lter with clean fuel and replace in tank.
6. Attach upper fuel line to fuel
lter neck.
7.Replace side cover.
Continued
TROUBLESHOOTING
SERVICE PROCEDURES
