Desa KEROSENE HIGH PRESSURE PORTABLE FORCED AIR HEATERS owner manual Troubleshooting

Page 7

TROUBLESHOOTING

WARNING: Never service heater while it is plugged in, operating or hot. Severe burns and electrical shock can occur. Only a qualified service person should service and repair heater.

OBSERVED PROBLEM

POSSIBLE CAUSE

REMEDY

 

 

 

 

Motor does not start when heater

1. No power or low voltage at

1.

A) Check condition of power

is plugged in and thermostat set-

 

heater due to:

 

cord or extension cord. Repair

ting is higher than surrounding

 

A) Damaged power cord or

 

or replace if damaged

air temperature

 

extension cord

 

B) Use extension cord with

 

 

B) Wrong size extension cord

 

proper wire size (see To Start

 

 

C) Heater plugged into outlet

 

Heater, page 4)

 

 

with voltage lower than 120

 

C) Make sure heater is plugged

 

 

volt

 

into 120 volt/60 hertz outlet

 

2.

Loose electrical connections

2.

Check connections. Tighten if

 

3.

Motor overload protector

 

loose

 

3.

A) See Fan Blades and Air

 

 

tripped due to:

 

Deflectors, page 10

 

 

A) Dirty fan

 

B) Remove debris from fan

 

 

B) Debris pulled into fan area

 

and fan guard area

 

 

by fan

 

C) Turn fan by hand. If fan is

 

 

C) Binding pump

 

hard to turn, see Pump, page

 

 

D) Low voltage

 

12

 

 

 

 

D) See steps B and C under

 

 

 

 

item 1 above

 

 

 

 

Note: Be sure to reset motor

 

 

 

 

overload protector by pressing

 

 

 

 

reset button on top of motor

 

4.

Flame-out control not reset

4.

Press and release flame-out

 

 

 

 

control reset button. See

 

 

 

 

Figure 4, page 4 for button

 

 

 

 

location

 

5.

Damaged flame-out control

5.

Replace flame-out control

 

6.

Damaged power relay

6.

Replace power relay

 

7.

Damaged thermostat

7.

Replace thermostat

 

8.

Binding pump

8.

Turn fan by hand. If fan is hard

 

 

 

 

to turn, see Pump, page 12

110098-01F

www.desatech.com

7

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Contents Table of Contents Top 4 Ft Safety InformationFollow all local ordinances and codes when using heater FuelingUnpacking Product IdentificationOperation To Start Heater Follow all ventilation and safety informationFuels VentilationUnplug extension cord from outlet STORING, Transporting of ShippingTo Stop Heater To Restart HeaterPreventative Maintenance Schedule Observed Problem Possible Cause Remedy TroubleshootingDamaged electronic ignitor Wrong fuel Remove fuel see Storing Wrong pump pressure Adjust pump pressure see Can be seenFill with clean fuel TankSpark Plug Service ProceduresUpper Shell Removal FAN Blades and AIR DeflectorsGauge Remove pressure gauge plug from fuel pump port marked GaugeRemove upper shell see Upper Shell Re- moval, Fuel LinesFuel Filters Models B350D, SB350D and R350A Illustrated Parts BreakdownNTC-4C Parts ListModels B600D, SB600D and R600A NTC-4C Illustrated Parts Breakdown and Part List Burner Head Assembly 350,000 and 600,000 BTU/HRNPF-5C Part List Motor and Pump Assembly 350,000 and 600,000 BTU/HRWiring Diagram SpecificationsOutput Rating Btu/Hr 350,000 600,000 Fuel Replacement Parts Maintenance KitsTechnical Service Accessory110098-01F Limited Warranty Warranty and Repair Services

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.

These heaters utilize high-quality kerosene fuel, which offers a robust heating output while maintaining a clean burn. Kerosene is widely available and often more cost-effective than other heating fuels. The heaters are designed to efficiently burn kerosene, ensuring minimal emissions and environmental impact. This makes them suitable for both indoor and outdoor use when proper ventilation is provided.

Safety is a primary focus in the design of Desa high-pressure heaters. They are equipped with multiple safety features, including automatic shut-off mechanisms, which activate in the event of overheating or abnormal operation conditions. Additionally, robust construction ensures durability, allowing these heaters to withstand tough working conditions while providing reliable performance over time.

Ease of operation is another key characteristic of Desa heaters. Many models come with user-friendly controls that allow for straightforward adjustments of temperature settings and fan speeds. Portability is enhanced through built-in handles and lightweight designs, allowing users to transport the heaters with ease.

In conclusion, Desa Kerosene High Pressure Portable Forced Air Heaters offer effective heating solutions that combine high performance, safety, and convenience. With their advanced features, durability, and efficiency, they stand as a reliable choice for anyone needing substantial heat output in challenging environments. Whether for commercial, industrial, or agricultural use, these heaters provide an essential service by delivering warmth whenever and wherever it is most required.