Desa RJ45, RJ70 owner manual Troubleshooting

Page 6

RJ45 And RJ70

PORTABLE FORCED AIR HEATERS

TROUBLESHOOTING

RJ45

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 and switched ON

 

 

 

 

 

 

 

WARNING: High voltage!

 

 

 

 

 

 

 

 

 

 

 

 

2.

Bad electrical connection between mo-

2.

Check all electrical connections. See

 

 

tor and ignition control assembly or ig-

 

Wiring Diagrams, page 12

 

 

nition assembly and power cord

 

 

 

3.

Binding pump rotor

3.

If fan does not turn freely, see Pump Ro-

 

 

 

 

 

tor, page 11

 

4.

Defective ignition control assembly

4.

Replace ignition control assembly

 

5.

Defective motor

5.

Replace motor

 

6.

Defective ON/OFF switch

6.

Replace ON/OFF switch

 

 

 

 

 

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 8

 

3.

Dirty fuel filter

3.

See Fuel Filter, page 9

 

4.

Obstruction in nozzle

4.

See Nozzle, page 10

 

5.

Water in fuel tank

5.

Drain and flush fuel tank with clean

 

 

 

 

 

kerosene. See Storing, Transporting, or

 

 

 

 

 

Shipping, 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 Diagrams, page 12

7.Replace ignitor, see page 9

8.Replace ignition control assembly

Heater ignites but ignition control assembly

1.

Pump pressure incorrect

1.

See Pump Pressure Adjustment, page 8

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 8

 

3.

Dirty fuel filter

3.

See Fuel Filter, page 9

 

4.

Obstruction in nozzle

4.

See Nozzle, page 10

 

5.

Photocell assembly not properly in-

5.

Make sure photocell boot is properly

 

 

stalled (not seeing the flame)

 

seated in bracket

 

6.

Dirty photocell lens

6.

Clean photocell lens

 

 

 

 

 

 

 

 

WARNING: High voltage!

 

 

 

 

 

 

 

 

7.

Bad electrical connection between pho-

7.

Check electrical connections. See Wir-

 

 

tocell and ignition control assembly

 

ing Diagrams, page 12

 

8.

Defective photocell

8.

Replace photocell

 

9.

Defective ignition control assembly

9.

Replace ignition control assembly

6

104950

Image 6
Contents Portable Forced AIR Heater Safety Information UnpackingProduct Identification RJ45Theory of Operation Fuels VentilationPreventative Maintenance Schedule OperationStoring TRANSPORTING, or Shipping Troubleshooting RJ45RJ70 Upper Shell Removal Service ProceduresPump Pressure Adjustment FANFuel Filter Ignitor RJ45Fuel and AIR Line Replacement Proper Routing Spark Plug RJ70Nozzle RJ45 Nozzle RJ70 Pump RotorWiring Diagrams Ignition Control AssemblySpecifications AccessoriesIllustrated Parts Breakdown RJ45Parts List Number Description QTYRJ70 KEY Part Number Description QTY Warranty and Repair Service

RJ70, RJ45 specifications

Desa RJ45 and RJ70 are two prominent connector types commonly used in networking and telecommunications. They serve as vital components in facilitating communication and data transfer over various networks, playing crucial roles in both home and commercial environments.

The RJ45 connector is perhaps the most recognized of the two, primarily used in Ethernet networks. Its standard design accommodates eight pins, enabling the connection of twisted-pair cables, most notably Category 5e, Category 6, and higher. This widespread acceptance can be attributed to its ability to support high-speed data transfer rates, with contemporary setups allowing speeds up to 10 Gbps over short distances. Key features of the RJ45 connector include its simple plug-and-play functionality, which streamlines installation and enhances user experience.

In comparison, the RJ70 connector is less common but is engineered for specific applications within telecommunications. This connector is designed with four pins, mainly used with telephone systems and low-speed data transmission. The RJ70 is particularly notable for its application in modular voice communication, where it is employed to connect telephones and to facilitate basic data connections.

Both RJ45 and RJ70 utilize differential signaling to enhance performance and reduce interference, which is vital in densely populated electronic environments. Furthermore, the connectors’ compact size aids in efficient space management, an important characteristic in data centers and telecom applications.

The physical structure of these connectors includes a locking mechanism to secure connections firmly, ensuring stability during operation. Additionally, RJ45 connectors typically come in shielded (STP) and unshielded (UTP) variations, offering options for users based on their environmental needs to mitigate electromagnetic interference.

In summary, Desa RJ45 and RJ70 connectors are integral to modern networking technologies. RJ45 connectors dominate Ethernet installations with their high-speed capabilities and versatility, while RJ70 connectors fulfill niche roles in voice communication systems. Understanding the features and technologies behind these connectors is essential for professionals in telecommunications and networking, ensuring optimal setup and performance in diverse applications. The ongoing evolution in networking demands keeps these connector types relevant, adapting to the increasing bandwidth requirements and technological advancements in data communication.