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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

fi 

er 

(

see page 10). 

Nozzle is dirty. 

3. Clean / replace 

Nozz

l

(

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 

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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Summary of Contents for GAU-KFA-PH-600K-TST

Page 1: ...CTION SHEET CONSULT AN ELECTRICIAN THERE ARE NO SERVICEABLE PARTS INSIDE WARNING MAKE SURE POWER IS TURNED OFF BEFORE STARTING THE INSTALLATION OR PERFORMING ANY MAINTENANCE RISK OF FIRE ELECTRIC SHOCK DISCONNECT POWER AT BREAKER BEFORE INSTALLING OR SERVICING RISK OF PERSONAL INJURY FIXTURE MAY BECOME UNSTABLE OR DAMAGED IF NOT INSTALLED PROPERLY RISK OF BURN ALLOW FIXTURE TO COOL BEFORE SERVICIN...

Page 2: ...is mounted on a cart with two wheels and front rear handles for portability and seamless transportation around the work site Warning Check product label for correct input voltage Attach supply line wires to the appropriate light fixture wires as shown in the diagram Secure each pair of wires according to the diagram Utilize a junction box or similar device and take precautionary steps for weatherp...

Page 3: ...ired forced air heater Kerosene forced air heaters are primarily intended for use for temporary heating of buildings under construction alteration or repair Direct fired means that all of the combustion products of the heater enter the heated space This appliance is rated at 98 combustion efficiency but does produce small amounts of carbon monoxide Carbon monoxide is toxic ADANGER CARBON MONOXIDE ...

Page 4: ...l storage should be in accordance with federal state or local authorities having jurisdiction Never use this heater in living or sleeping areas NEVER use this heater where flammable vapors may be present I AWARNINGI Risk of electric shock Use only the electrical power voltage and frequency specified on the model plate of the heater Use only a three prong grounded outlet and extension cord ALWAYS i...

Page 5: ...quired to assemble your heater NOTE Save the box and packaging materials for future storage Assembly Front Handle Handle Frame Wheel Support Frame__ Flat Washer L Cotter Pin Flat Washer S Figure 2 Assembly of Model GAU KFA PH 600K TST Fan Guard Wheel Tube Valve GAU KFA PH 600K TST Larson Electronics LLC Phone 800 369 6671 Fax 903 498 3364 www larsonelectronics com 5 of 16 ...

Page 6: ...le NOTE When installing wheels tube valve should face out from support frame Figure 2 2 Place flat washers L and cotter pins on axle ends and bend cotter pins with long nose pliers to secure 3 Place wheel cap on flat washers L and put wheel cap in flat washers L end 4 Place heater on wheel support frame Make sure air inlet end rear of heater is over wheels Align the holes on fuel tank flange Inser...

Page 7: ...h a Temperature Limit Control designed to turn the heater off should the internal temperature rise to an unsafe level If this device activates and turns your heater off it may require service Once the temperature falls below the reset temperature you will be ale to start your heater Electrical System Protection This heater s electrical system is protected by a fuse that protects it and other elect...

Page 8: ...oling cycle The cooling cycle cools the combustion chamber Damage to heater can occur if combustion chamber is not cooled Do not restart heater until cc Oling cycle is complete 1 Push OPERATION BUTTON see Figure 5 This will cause heater flame to go out The motor will continue to run during the cooling cycle This allows the fan to cool the combustion cham ber When the cooling cycle approx 2 minutes...

Page 9: ...move it all IMPORTANT Do not store kerosene over summer for use during next heating season Using old fuel may damage heater 3 Reinstall drain bolt as follows i Insert bolt s seal head fully into drain hole so that flange is flush to tank s bottom See Figure 6 ii Insert seal cap fully into head hole so that cap flange is flush to head flange See Figure 6 Drain Bolt Bottom Fron of Fuel Tank Figure 6...

Page 10: ...e B from burner assembly by using wrench 3 Remove burner head from burner assembly 4 Remove lead wire from spark plug 5 Remove spark plug from burner head 6 Carefully remove nozzle from burner head using socket wrench 7 Blow compressed air through face of nozzle this will remove any dirt 8 Inspect nozzle for damage If damaged or clogged replace nozzle 9 Make sure plug is in place on burner head 10...

Page 11: ...fuel filter in clean kerosene 5 Replace fuel filter and fuel cover Fuel filter A on fuel cap 1 Remove fuel cap See Figure 11 2 Take out fuel filter with clean kerosene 3 Wash fuel filter with clean kerosene 4 Replace fuel filter on fuel tank 5 Replace fuel cap on fuel tank fi1 fi1 Figure 10 Removing Fuel Filter Fuel Cap 9 Fuel Gas et Q Fuel Filter A tt1 Figure 11 Fuel Filter A PUMP PRESSURE ADJUST...

Page 12: ...ting conditions NOTE If heater does not ignite when heater is turned on please turn AIR VENT SCREW counter clockwise to release air then turn OPERATION SWITCH back on Wiring Diagram BLACK AC 120V 60Hz EARTH CONTROLLER ASSEMBLY BG ROOM TEMP SETTING TEMP c a c a c a POWER OPERATION CHECK UP m J Jl TEW UP CN1 CN1 WHITE FUSE 10A 250VAC Figure 12 Pump Pressure Adjustment BLACK BLACK GRAY PHOTOCELL GRAY...

Page 13: ...Exploded View 6 4 GAU KFA PH 600K TST Larson Electronics LLC Phone 800 369 6671 Fax 903 498 3364 www larsonelectronics com 13 of 16 ...

Page 14: ...el Photocell Nozzle Fan Motor Assembly Parts List 70 027 0800 70 006 0200 70 041 0110 70 016 0150 70 015 0750 70 021 0800 GAU KFA PH 600K TST Larson Electronics LLC Phone 800 369 6671 Fax 903 498 3364 www larsonelectronics com 14 of 16 GAU KFA PH 600K TST ...

Page 15: ...ump 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 fuelfilter seepage 10 Dirty nozzle 5 Clean replace nozzle seepage 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 c...

Page 16: ...excessive dust build up Clean with a non abrasive cloth if needed 4 Do not operate if the unit is cracked or damaged All fasteners should be properly seated USE AND CARE Unauthorized modification may impair the function and or safety of this device and could affect the life of the equipment Always check for damaged or worn out parts before using the device Store it in a secure place out of the rea...

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