Desa RJ70, RJ45 owner manual

Page 7

OWNER’S MANUAL

TROUBLESHOOTING

Continued

RJ70

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

OBSERVED FAULT

POSSIBLE CAUSE

REMEDY

Heater ignites, but flame-out control shuts

1.

Photocell assembly not properly in-

1.

Make sure photocell boot is properly

off heater after a short period of time

 

stalled (seeing flame)

 

seated in bracket

 

2.

Wrong pump pressure

2.

See Pump Pressure Adjustment, page 8

 

3.

Dirty air output, air intake and lint filters

3.

See Air Output, Air Intake and Lint Fil-

 

 

 

 

 

ters, page 8

 

4.

Dirty fuel filter

4.

See Fuel Filter, page 9

 

5.

Dirt in nozzle

5.

See Nozzle, page 11

 

6.

Dirty photocell lens

6.

Clean photocell lens

 

7.

Defective flame-out control

7.

Replace flame-out control

 

8.

Defective photocell

8.

Replace photocell

 

 

 

 

 

 

 

Heater will not ignite, but motor runs for a

1.

No fuel in tank

1.

Fill tank with kerosene

short period of time

2.

Wrong pump pressure

2.

See Pump Pressure Adjustment, page 8

 

3.

Carbon deposits on spark plug and/or

3.

See Spark Plug, page 10

 

 

improper gap

 

 

 

 

4.

Dirty fuel filter

4.

See Fuel Filter, page 9

 

5.

Dirt in nozzle

5.

See Nozzle, page 11

 

6.

Water in fuel tank

6.

Drain and flush fuel tank with clean

 

 

 

 

 

kerosene. See Storage, Transporting, or

 

 

 

 

 

Shipping,page 5

 

 

 

 

 

 

 

 

WARNING: High voltage!

 

 

 

 

 

 

 

 

 

7.

Electronic ignitor not grounded

7.

Make sure electronic ignitor mounting

 

 

 

 

 

is tight

 

8.

Defective electronic ignitor

8.

Replace electronic ignitor

 

 

 

 

 

 

 

Motor does not start when heater is plugged

1.

Flame-out control not reset

1.

Press flame-out control reset button

in and switched ON, fan rotates slowly or

2.

Binding pump rotor

2.

If fan is hard to turn, see Pump Rotor,

does not turn

 

 

 

 

page 11

 

3.

Defective motor

3.

Replace motor

 

4.

Defective ON/OFF switch

4.

Replace ON/OFF switch

 

5.

No power to heater

5.

Check circuit breaker in electrical panel

 

6.

Bad electrical connections

6.

Check all electrical connections. See

 

 

 

 

 

Wiring Diagrams, page 12

104950

7

Image 7
Contents Portable Forced AIR Heater Unpacking Safety InformationRJ45 Product IdentificationVentilation Theory of Operation FuelsOperation Preventative Maintenance ScheduleStoring TRANSPORTING, or Shipping RJ45 TroubleshootingRJ70 FAN Service ProceduresPump Pressure Adjustment Upper Shell RemovalIgnitor RJ45 Fuel FilterSpark Plug RJ70 Fuel and AIR Line Replacement Proper RoutingNozzle RJ45 Pump Rotor Nozzle RJ70Ignition Control Assembly Wiring DiagramsAccessories SpecificationsRJ45 Illustrated Parts BreakdownNumber Description QTY Parts ListRJ70 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.