TROUBLESHOOTING

Continued

OBSERVED PROBLEM

POSSIBLE CAUSE

REMEDY

 

 

 

 

Heater ignites, but flame-out

1. Wrong pump pressure

1.

Adjust pump pressure (see

control shuts off heater after a

 

 

 

Pump Pressure Adjustment

short period of time

 

 

 

sections, page 11)

 

2.

Dirty fuel filters

2.

Clean fuel filters (see Fuel

 

 

 

 

Filters, page 12)

 

3.

Dirt in nozzle

3.

Replace nozzle (see Nozzle,

 

4.

Dirty photocell lens

 

page 10)

 

4.

Clean photocell lens with

 

5.

Open or damaged photocell

 

clean cotton swab

 

5.

Replace photocell

 

6.

Bad flame-out control

6.

Replace flame-out control

 

7.

Damaged fan switch

7.

Replace fan switch

 

 

 

 

Heater burns, but puffs of smoke

1. Wrong pump pressure

1.

Adjust pump pressure (see

can be seen

 

 

 

Pump Pressure Adjustment

Heater does not burn steady

2. A) Heater almost out of fuel

 

sections, page 11)

Heater burns with odor

2.

A) Add fuel to tank

Heater smokes continuously

 

B) Water condensation in fuel

 

B) Check fuel tank for bubbles

 

 

tank

 

of water in bottom. If found,

 

 

C) Wrong fuel

 

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

 

3.

Dirty fuel filters

3.

Clean fuel filters (see Fuel

 

4.

Air leak in suction system

 

Filters, page 12)

 

4.

Tighten all fuel line connections

 

5.

Dirty nozzle

 

(see Fuel Lines, page 12)

 

5.

Replace nozzle (see Nozzle,

 

6.

Low voltage causing motor to

 

page 10)

 

6.

Check voltage at heater. Volt-

 

 

operate below rated speed

 

age at heater should be not

 

 

 

 

less than 90% of rated voltage

 

 

 

 

(108V minimum for 120V

 

7.

Loose fuel line

 

heaters)

 

 

 

7.

Check and tighten all fuel line

 

 

 

 

connections (see Fuel Lines,

 

 

 

 

page 12)

110098-01F

www.desatech.com

9

Page 9
Image 9
Desa KEROSENE HIGH PRESSURE PORTABLE FORCED AIR HEATERS Wrong pump pressure Adjust pump pressure see Can be seen, Tank

KEROSENE HIGH PRESSURE PORTABLE FORCED AIR HEATERS specifications

Desa Kerosene High Pressure Portable Forced Air Heaters are engineered to deliver efficient and effective heating solutions for a variety of applications. These heaters stand out for their portability, high heating capacity, and adaptability to different environments, making them ideal for construction sites, warehouses, livestock facilities, and other outdoor settings.

One of the standout features of Desa heaters is their high-pressure design. This technology allows for rapid heating by forcing hot air into the surrounding area at a higher velocity compared to traditional heaters. This means that larger spaces can be heated more quickly and efficiently. With adjustable outlets, users can direct heat where it is needed most, further optimizing energy use and comfort.

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