...
Problem
Heater Ignites, but main PCB shuts
1 .
off
after a short period of time.
2.
Lamp flickers and LED display
3.
shows "E1".
4.
5.
6.
7.
Heater will not operate or motor
1 .
runs for a short time.
2.
Lamp flickers and LED display
3.
shows "E1".
4.
5.
6.
7.
8.
9.
Fan does not operate when heater
1.
is plugged in and power switch is
2.
in the "ON" position. The lamp is
flickering or and LED display shows
"E1" or "E2".
Lamp is flickering and LED display
1.
shows "E3".
2.
Lamp is flickering and LED display
1 .
shows "E4".
Lamp is flickering and LED display
1 .
shows "ES".
Other problems
1.
NEVER LEAVE HEATER UNATTENDED WHILE BURNING
OR WHILE CONNECTED TO A POWER SOURCE
Troubleshooting Guide
Possible Cause
Solutia
Incorrect pump pressure.
1.
Adjust pump pressure
(
see
page 10).
Dirty fuel filter.
2.
Clean
/
replace
fu
e
l
fi
er
(
see page 10).
Nozzle is dirty.
3. Clean / replace
Nozz
l
e
(
s
ee
a e 9).
Photocell lens is dirty.
4.
Clean/ replace photocell
(see
page
0).
Photocell not installed properly ..
5.
Adjust photocell position
(see
pa---ge
0).
Improper electrical connection
6.
Check wiring connections
between main PCB and photocell.
(see wiring diagram on page
11
)
.
Photocell is defective
7.
Replace photocell (see page 9).
No kerosene in the fuel tank.
1.
Fill tank with fresh kerosene.
Incorrect pump pressure.
2.
Adjust pump pressure (see page 10).
Corroded spark plug or incorrect
3.
Clean/ replace spark plug (see
plug gap.
page 9).
Dirty fuel filter.
4.
Clean/ replace fuel filter (see page 10).
Dirty nozzle.
5.
Clean
/
replace nozzle (see page 9).
Moisture in fuel tank.
6.
Rinse fuel tank with clean, fresh
Improper electrical conne�tion
kerosene (see page 8).
7.
Inspect all electrical connections
between transformer and circuit
(see wiring diagram on page 11 ).
board.
Igniter wire not connected to spark
8.
Re-attach igniter wire to spark plug
plug.
(see page 9).
Defective igniter.
9.
Replace igniter.
"thermostat is set too low.
1.
Rotate thermostat to a higher
Broken electrical connection
setting
between main PCB and motor.
2.
Inspect all electrical connections
(see wiring diagram on page 11 ).
Thermostat switch has failed.
1.
Replace thermostat switch (see
wiring diagram on page 11 ).
Short circuit
2.
Inspect all electrical connections
(see wiring diagram on page 11 ).
Sensor disconnected
1.
Check limit control thermostat and/
or check sensor connection
Temperature limit safety device is
1.
Wait until unit cools down.
overheated
I
Poor combustion
1.
Poor combustion
- Flames extending beyond heater
- Align the red mark between the air
- Low heat output
screw and pump body
2. Power failure
2.
Power failure
- No power supply to heater
- Check / replace fuse
GAU-KFA-PH-600K-TST
Larson Electronics, LLC
Phone: (800) 369-6671
Fax: (903) 498-3364
www.larsonelectronics.com
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