26
troubleshooting
Problem
Possible Case
Solution
Heater fires, but Main
PCB shuts heater off
after a short period of
time. Lamp is flickering,
and LED display shows
“E1”.
1. Incorrect pump pressure.
2. Dirty Input, Output or Lint
Filter.
3. Dirty Fuel Filter.
4. Nozzle is Dirty.
5. Photocell lens is Dirty
6. Photocell not installed
properly.
7. Photocell Defective
8. Improper electrical
connection between
Main PCB and Photocell.
1. Adjust Pump Pressure (P.11)
2. Clean/replace Air Filter (P.9)
3. Clean/replace Fuel Filter
(P.11)
4. Clean/replace Nozzle (P.10)
5. Clean/replace Photocell (P.
10)
6. Adjust Photocell position
(P.10)
7. Replace Photocell (P.10)
8. Check wiring connections
(See Wiring Diagrams, P.14)
Heater will not operate,
or motor runs for short
time. Lamp flickers and
LED display shows
“E1”.
1. No kerosene in fuel tank.
2. Incorrect pump pressure.
3. Corroded Spark Plug or
incorrect plug gap.
4. Dirty Fuel Filter.
5. Dirty Nozzle.
6. Moisture in Fuel/Fuel
Tank.
7. Improper electrical
connection between
Transformer and Circuit
Board
8. Ignitor Wire not
connected to Spark Plug.
9. Defective Ignitor.
1. Fill tank with fresh kerosene
2. Adjust Pump Pressure (P.11)
3. Clean/replace Spark Plug
(P.10)
4. Clean/replace Fuel Filter
(P.11)
5. Clean/replace Nozzle (P.10)
6. Rinse out fuel tank with clean
fresh kerosene (P.9)
7. Inspect all electrical
connections. See Wiring
Diagrams (P.14)
8. Re-attach Ignitor wire to
Spark Plug (P.10)
9. Replace Ignitor
Fan does not operate
when heater is plugged
in and Power Switch
is in the “ON” position.
The lamp is flickering
or on and LED Display
shows “E1” or “E2”.
1. Thermostat is set too
low.
2. Broken electrical
connection between
Main PCB and motor.
1. Rotate thermostat to a higher
setting.
2. Inspect all electrical
connections. See Wiring
Diagrams (P.14)
Lamp is flickering, and
LED display shows
“E3”.
1. Thermostat Switch has
failed.
1. Replace Thermostat Switch.
Wiring Diagrams (P.14)
Troubleshooting
TROUBLESHOOTING CHART
