Desa KEROSENE HIGH PRESSURE PORTABLE FORCED AIR HEATERS Troubleshooting, WARNING High Voltage

Models: KEROSENE HIGH PRESSURE PORTABLE FORCED AIR HEATERS

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OBSERVED PROBLEM POSSIBLE CAUSE

TROUBLESHOOTING

Continued

OBSERVED PROBLEM POSSIBLE CAUSE

REMEDY

Heater will not ignite, but motor runs for a short period of time.

1.A) Fuel tank empty

B)Water in fuel

C)Wrong fuel

2.Dirt in nozzle

3.Very low temperature may cause fuel to thicken and not flow

4.Dirty fuel filters

5.Wrong pump pressure

6.Spark plug wire disconnected from plug

7.Spark plug problems due to:

A)Wrong gap

B)Plug wet with fuel

C)Carbon deposits on plug

D)Damaged plug

8.Solenoid valve not opening

1.A) Add fuel to tank

B)Check fuel tank for bubbles of water in bottom. If found, remove fuel (see Storing, Transporting, or Shipping, page 5). Clean tank and fuel filters (see Fuel Filters, page 12). Fill with clean fuel

C)Remove wrong fuel (see Storing, Transporting, or Ship- ping, page 5). Clean tank and fuel filters (see Fuel Filters, page 12). Fill with correct fuel

2.Replace nozzle (see Nozzle, page 10)

3.Move heater to warmer place until fuel flows freely

4.Clean fuel filters (see Fuel Filters, page 12)

5.Adjust pump pressure (see Pump Pressure Adjustment sections, page 11)

6.Connect spark plug wire to spark plug

7.A)Adjust electrode gap to .075" (see Spark Plug, page 10)

B)Clean fuel from spark plug with clean, soft cloth

C)Replace plug if heavily coated with carbon (see Spark Plug, page 10)

D)Inspect plug for worn or eroded electrodes. If found, replace plug (see Spark Plug, page 10)

8.Check electrical connections and voltage to solenoid. If good, replace solenoid valve

 WARNING: High Voltage!Manual background WARNING: High Voltage!

9. Damaged electronic ignitor

9. Replace electronic ignitor

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Desa KEROSENE HIGH PRESSURE PORTABLE FORCED AIR HEATERS Troubleshooting, WARNING High Voltage, Continued, Remedy

FAQ

What should I do if my heater will not ignite but the motor runs?

Check for an empty fuel tank, water in the fuel, or the use of the wrong fuel. Also, inspect the nozzle for dirt and the spark plug for any problems. Adjusting the pump pressure and ensuring the solenoid valve is working properly are also necessary steps.

How do I clean the fuel tank and fuel filters?

Remove any wrong fuel, clean the tank and fuel filters, and fill with the correct fuel. Detailed instructions are available on page 5 and page 12 of the manual.

What should I do if the spark plug is wet with fuel?

The spark plug should be cleaned with a clean, soft cloth. If heavily coated with carbon, it may need replacement. Refer to page 10 for more information.