S
Symptom
Possible Cause(s)
Corrective Action
Heater ignites but MAIN PCB
assembly shuts heater off after a
short period of time. (Indicator
Lamp is flickering and room temp.
display indicates “E1”)
Heater will not ignite but motor
runs for a short period of time.
(Indicator Lamp is flickering and
room temp. display indicates “E1”)
Fan does not turn when heater is
plugged in and power switch was
in the “ON” position. (Indicator
Lamp is on or flickering)
(Indicator Lamp is flickering and
room temp. display indicates “E2”)
(Indicator Lamp is flickering and
room temp. display indicates “E3”)
Heater will not turn-on (Indicator
Lamp is off)
1. Wrong pump pressure
2. Dirty Air Output, Air Intake or Lint Filter
3. Dirty Fuel Filter
4. Dirt in Nozzle
5. Dirt Photocell Lens
6. Photocell Assembly not Properly Installed (not
seeing the flame)
7. Bad electrical connection between photocell and
MAIN PCB Assembly
8. Defective photocell
1. No fuel in tank
2. Wrong pump pressure
3. Carbon deposits on spark plug and/or improper
gap
4. Dirty fuel filter
5. Dirt in Nozzle
6. Water in fuel tank
7. Bad electrical connection between igniter and
MAIN PCB Assembly
8. Igniter wire is not attached to spark plug
1. Thermostat setting is too low
2. Bad electrical connection between motor and MAIN
PCB Assembly
1. Room Temp. sensor disconnected
2. Sensor Failure
Thermostat switch failure
1. Temperature limit safety device is overheated
2. No electrical power
3. Blown fuse
4. Bad electrical connection between temperature
limit safety device and
PCB board
1. See Pump Pressure Adjustment, page 15
2. See Air Output, Air Intake and Lint Filters, page 12
3. See Fuel Filter, page 15
4. See Nozzle, page 13
5. Clean Photocell Lens, page 14
6. Make sure photocell boot is properly seated in
bracket, Page 14
7. Check electrical components. See Wiring Diagrams,
page 17
8. Replace Photocell, page 14
1. Fill tank with kerosene
2. See Pump Pressure Adjustment, page 15
3. See Spark Plug, page 14
4. See Fuel Filter, page 15
5. See Nozzle, page 13
6. Flush fuel tank with clean kerosene, page 11
7. Check electrical components. See Wiring Diagram,
page 17
8. Attach igniter to spark plug. See Spark Plug, page 14
1. Turn thermostat control knob to a higher setting
2. Check electrical connections. See Wiring Diagram,
page 17
1. Reconnect sensor. See Wiring Diagrams,
page 17
2. Replace sensor. See Wiring Diagram, page 17
Replace MAIN PCB
1. Turn power switch to “OFF” and allow to cool (about
10 min.)
2. Check to insure heater cord and extension cord are
plugged in. Check power supply
3. Replace safety fuse in PCB board. See Replacing
Fuse, page 16
4. Check electrical connections. See Wiring Diagrams,
page 17
Troubleshooting Chart
Troubleshooting
4
18
