Desa Tech HEATERS OWNER'S MANUAL owner manual Pump Pressure Adjustment

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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 12)

 

2.

Dirty fuel filters

2.

Clean fuel filters (see Fuel

 

 

 

 

Filters, page 14)

 

3.

Dirt in nozzle

3.

Replace nozzle (see Nozzle,

 

4.

Dirty photocell lens

 

page 11)

 

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 12)

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 6). Clean tank and fuel

 

 

 

 

filters (see Fuel Filters, page

 

 

 

 

14). Fill with clean fuel

 

 

 

 

C) Remove wrong fuel (see

 

 

 

 

Storing, Transporting or Ship-

 

 

 

 

ping, page 6). Clean tank and

 

 

 

 

fuel filters (see Fuel Filters,

 

 

 

 

page 14. Fill with correct fuel

 

3.

Dirty fuel filters

3.

Clean fuel filters (see Fuel

 

4.

Air leak in suction system

 

Filters, page 14)

 

4.

Tighten all fuel line connections

 

5.

Dirty nozzle

 

(see Fuel Lines, page 13)

 

5.

Replace nozzle (see Nozzle,

 

6.

Low voltage causing motor to

 

page 11)

 

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 13)

10

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Contents Table of Contents Safety Information Follow all local ordinances and codes when using heaterProduct Identification UnpackingFuels Theory of OperationFresh Air Opening Requirements To Stop Heater OperationTo Start Heater To Restart HeaterSTORING, Transporting of Shipping Portable GeneratorPreventative Maintenance Schedule How Often How ToTroubleshooting Observed Problem Possible Cause RemedyDamaged electronic ignitor Pump Pressure Adjustment Spark Plug Service ProceduresUpper Shell Removal FAN Blades and AIR DeflectorsAdjusting Pump Pressure Pump Procedure if Pump is Binding Fuel LinesFor Heaters With Fuel Filter/Canister External To Pump Fuel FiltersTank Fuel Filter For Heaters With Fuel Filter Internal To PumpAccessory Maintenance KitsTechnical Service Replacement PartsIllustrated Parts Breakdown Models B350D, SB350D and R350AParts List NTC-4CModels B600D, SB600D and R600A NTC-4C Illustrated Parts Breakdown and Parts List Burner Head Assembly 350,000 and 600,000 BTU/HRNPF-5C Motor and Pump Assembly 350,000 and 600,000 BTU/HR For Heaters With Fuel Filter/Canister External To PumpWiring Diagram Specifications350,000 Btu/Hr Warranty and Repair Services Warranty Service

Tech HEATERS OWNER'S MANUAL specifications

Desa Tech heaters are renowned for their advanced heating solutions that combine efficiency, safety, and user-friendly features. This owner’s manual serves as a comprehensive guide to the main features, technologies, and characteristics of Desa Tech heaters, ensuring users can maximize their heating experience while maintaining optimal safety and performance.

One of the standout features of Desa Tech heaters is their innovative combustion technology, which allows for cleaner and more efficient burning of fuel. This not only maximizes heat output but also minimizes harmful emissions, making them an environmentally friendly choice. The heaters are designed to operate quietly, providing comfort without disruptive noise, which is perfect for living spaces and other environments where peace is vital.

Safety is a primary concern, and Desa Tech heaters come equipped with a variety of safety features. These include a reliable carbon monoxide monitor that alerts users to unsafe levels of this potentially lethal gas. Additionally, many models feature an automatic shut-off system that activates in the event of overheating or other irregular conditions. These safety mechanisms are crucial in preventing accidents and ensuring peace of mind during use.

Desa Tech heaters also employ advanced thermostatic control technology. This feature allows users to set their desired temperature, and the heater will automatically adjust its output to maintain that level. This not only provides comfort but also enhances energy efficiency, helping to reduce overall heating costs. Users can enjoy a warm atmosphere without the worry of excessive energy consumption.

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Moreover, Desa Tech heaters are often designed for easy maintenance, with user-accessible filters and simple cleaning procedures. Regular maintenance ensures that the heater operates at peak efficiency and extends its lifespan.

In summary, the Desa Tech heater owner’s manual outlines the essential features and technologies that make these heating solutions a popular choice. With a focus on efficiency, safety, and user convenience, users can enjoy a warm and comfortable environment while minimizing their impact on the planet and keeping energy costs in check. By adhering to the guidelines in this manual, users can maximize the benefits of their Desa Tech heater for years to come.