Desa REM115T, R115T, B115T owner manual Troubleshooting

Page 6

115,000 Btu/Hr H.S.I. Series

PORTABLE FORCED AIR HEATER

TROUBLESHOOTING

Note: For additional help, visit DESA International’s Technical Service web site at www.desatech.com.

WARNING: Never service heater while it is plugged in, operating, or hot. Severe burns and electrical shock can occur.

OBSERVED FAULT

POSSIBLE CAUSE

REMEDY

Motor does not start five seconds after heater

1.

No power to heater

1.

Check circuit breaker in electrical panel

is plugged in

2.

Thermostat setting too low

2.

Turn thermostat knob to a higher setting

 

 

 

 

 

 

 

 

WARNING: High voltage!

 

 

 

 

 

 

 

 

 

3.

Bad electrical connection between mo-

3.

Check all electrical connections. See

 

 

tor and ignition control assembly or ig-

 

Wiring Diagram, page 11

 

 

nition control assembly and power cord

 

 

 

 

4.

Blown fuse on ignition control assembly

4.

See Ignition Control Assembly, page 10

 

5.

Binding pump rotor

5.

If fan does not turn freely, see Pump

 

 

 

 

 

Rotor, page 10

 

6.

Defective ignition control assembly

6.

Replace ignition control assembly

 

7.

Defective motor

7.

Replace motor

 

 

 

 

 

 

 

Motor starts and runs but heater does not

1.

No fuel in tank

1.

Fill tank with kerosene

ignite

2.

Pump pressure incorrect

2.

See Pump Pressure Adjustment, page 7

 

3.

Dirty fuel filter

3.

See Fuel Filter, page 8

 

4.

Obstruction in nozzle assembly

4.

See Nozzle Assembly, page 9

 

5.

Water in fuel tank

5.

Drain and flush fuel tank with clean kero-

 

 

 

 

 

sene. See Storing, Transporting, or Ship-

 

 

 

 

 

ping, page 5

WARNING: High voltage!

6.Bad electrical connection between igni- tor and ignition control assembly

7.Defective ignitor

8.Defective ignition control assembly

6.Check electrical connections. See Wir- ing Diagram, page 11

7.Replace ignitor, see page 8

8.Replace ignition control assembly

Heater ignites but ignition control assembly

1.

Pump pressure incorrect

1.

See Pump Pressure Adjustment, page 7

shuts heater off after a short period of time

2.

Dirty air intake, air output, and/or lint

2.

See Air Output, Air Intake, and Lint Fil-

 

 

filter

 

ters, page 7

 

3.

Dirty fuel filter

3.

See Fuel Filter, page 8

 

4.

Obstruction in nozzle assembly

4.

See Nozzle Assembly, page 9

 

5.

Photocell assembly not properly installed

5.

Make sure photocell boot is properly

 

 

(not seeing the flame)

 

seated in bracket

WARNING: High voltage!

6.Dirty photocell lens

7.Bad electrical connection between pho- tocell and ignition control assembly

8.Defective photocell

9.Defective ignition control assembly

6.Clean photocell lens

7.Check electrical connections. See Wir- ing Diagram, page 11

8.Replace photocell

9.Replace ignition control assembly

www.desatech.com

6

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Contents Portable Forced AIR Heater With BUILT-IN ThermostatSafety Information UnpackingFueling Assembly Product IdentificationTools Needed Fuels Theory OperationVentilation Preventative Maintenance Storing TRANSPORTING, or ShippingSchedule Troubleshooting Upper Shell Removal Service ProceduresPump Pressure Adjustment FANFuel Filter IgnitorReplace combustion chamber Nozzle Assembly Fuel and AIR Line Replacement Proper RoutingIgnition Control Assembly Pump RotorWiring Diagram Technical Service SpecificationsIllustrated Parts Breakdown REM115TParts List KEY Part Number Description QTYWheels and Handle Parts List Parts Available not ShownReplacement Parts AccessoriesWarranty and Repair Service

B115T, R115T, REM115T specifications

Desa R115T, B115T, and REM115T are models of advanced heating and cooling systems designed to provide optimal performance and efficiency in climate control. These systems have been engineered to meet the diverse needs of both residential and commercial spaces, ensuring comfort regardless of external weather conditions.

The Desa R115T is known for its robustness and reliability. Featuring a powerful heating component, it employs a high-efficiency burner that maximizes heat output while minimizing fuel consumption. The unit integrates state-of-the-art digital controls, allowing for precise temperature settings and scheduling. Key features include a quick warm-up time, quiet operation, and a durable construction that ensures longevity, making it suitable for various applications.

On the other hand, the Desa B115T focuses on versatility and user-friendliness. This model features a dual fuel capability, allowing it to operate on both propane and natural gas, providing flexibility based on availability and preference. Its advanced thermostat offers smart capabilities, enabling remote access via smartphone applications. The B115T’s sleek design and compact size make it an ideal choice for urban environments where space is limited.

The REM115T is another impressive option, primarily distinguished by its eco-friendly design. This model utilizes advanced heat pump technology that extracts heat from the surrounding air, significantly reducing carbon emissions. It is equipped with a variable-speed compressor that adjusts to the heating and cooling demands, providing energy efficiency that can lead to substantial savings on utility bills. The REM115T also includes a built-in air purification system, improving indoor air quality by reducing allergens and pollutants.

All three models boast advanced insulation to enhance their energy efficiency ratings, contributing to lower operational costs. They are equipped with user-friendly interfaces, allowing for easy monitoring and adjustment of settings. Furthermore, their compatibility with smart home systems makes them a modern solution for environmentally conscious users seeking automated comfort.

Overall, Desa R115T, B115T, and REM115T are exemplary models of heating and cooling technology, each offering unique features and capabilities tailored to meet diverse needs while ensuring efficient and reliable climate control. With their cutting-edge technologies, these systems exemplify the future of home and commercial heating solutions.