Desa CGN20L, RN30D installation manual Troubleshooting, Observed Problem Possible Cause Remedy

Page 12

BLUE-FLAME CGN20, CGN20L AND RN30D

VENT-FREE NATURAL GAS HEATERS

TROUBLESHOOTING

Note: All troubleshooting items are listed in order of operation.

WARNING: Turn off and un- plug heater and let cool before servicing. Only a qualified ser- vice person should service and repair heater.

CAUTION: Never use a wire, needle, or similar object to clean ODS/pilot. This can damage ODS/ pilot unit.

OBSERVED PROBLEM

POSSIBLE CAUSE

REMEDY

When ignitor button is pressed, there is no

1. Ignitor electrode positioned wrong

1.

Replace ignitor

spark at ODS/pilot

2. Ignitor electrode broken

2.

Replace ignitor

 

 

3.

Ignitor electrode not connected to

3.

Reconnect ignitor cable

 

 

 

ignitor cable

 

 

 

 

4.

Ignitor cable pinched or wet

4.

Free ignitor cable if pinched by any metal

 

 

 

 

 

or tubing. Keep ignitor cable dry

 

 

5.

Broken ignitor cable

5.

Replace ignitor cable

 

 

6.

Bad piezo ignitor

6.

Replace piezo ignitor

 

 

 

 

 

When ignitor button is pressed, there is

1. Gas supply turned off or manual shutoff

1.

Turn on gas supply or open manual shutoff

spark at ODS/pilot but no ignition

 

valve closed

 

valve

 

 

2.

Control knob not in PILOT position

2.

Turn control knob to PILOT position

 

 

3.

Control knob not pressed in while in

3.

Press in control knob while in PILOT

 

 

 

PILOT position

 

position

 

 

4.

Air in gas lines when installed

4.

Continue holding down control knob.

 

 

 

 

 

Repeat igniting operation until air is re-

 

 

 

 

 

moved

 

 

5.

ODS/pilot is clogged

5.

Clean ODS/pilot (see Cleaning and Main-

 

 

 

 

 

tenance, page 11) or replace ODS/pilot

 

 

 

 

 

assembly

 

 

6.

Gas regulator setting is not correct

6.

Replace gas regulator

 

 

 

 

 

ODS/pilot lights but flame goes out when

1. Control knob not fully pressed in

1.

Press in control knob fully

control knob is released

2. Control knob not pressed in long enough

2.

After ODS/pilot lights, keep control knob

 

 

 

 

 

pressed in 30 seconds

 

 

3.

Manual shutoff valve not fully open

3.

Fully open manual shut-off valve

 

 

4.

Thermocouple connection loose at con-

4.

Hand tighten until snug, then tighten 1/4

 

 

 

trol valve

 

turn more

 

 

5.

Pilot flame not touching thermocouple,

5.

A) Contact local natural gas company

 

 

 

which allows thermocouple to cool, caus-

 

 

 

 

 

ing pilot flame to go out. This problem

 

B) Clean ODS/pilot (see Cleaning and

 

 

 

could be caused by one or both of the

 

Maintenance, page 11) or replace ODS/

 

 

 

following:

 

pilot assembly

 

 

 

A) Low gas pressure

 

 

 

 

 

B) Dirty or partially clogged ODS/pilot

 

 

 

 

6.

Thermocouple damaged

6.

Replace thermocouple

 

 

7.

Control valve damaged

7.

Replace control valve

 

 

 

 

 

Burner does not light after ODS/pilot is lit

1. Burner orifice is clogged

1.

Clean burner (see Cleaning and Mainte-

 

 

 

 

 

nance, page 11) or replace burner orifice

 

 

2.

Burner orifice diameter is too small

2.

Replace burner orifice

 

 

3.

Inlet gas pressure is too low

3.

Contact local natural gas company

 

 

 

 

 

Delayed ignition of burner

1. Manifold pressure is too low

1.

Co. natural gas company

 

 

2.

Burner orifice is clogged

2.

Clean burner (see Cleaning and Mainte-

 

 

 

 

 

nance, page 11) or replace burner orifice

 

 

3.

Inlet gas pressure is too low

3.

Contact local natural gas company

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Contents RN30D CGN20 CGN20L What to do if YOU Smell GASSafety Information Product FeaturesLocal Codes UnpackingProduct Identification AIR for Combustion VentilationProviding Adequate Ventilation Unusually Tight ConstructionAIR for Combustion and Ventilation Determining AIR Flow for Heater LocationVentilation AIR Ventilation Air From Inside BuildingVentilation Air From Outdoors Ventilation Air from Inside BuildingInstalling to Wall Installation ItemsCheck GAS Type Locating HeaterInstalling Heater to Wall Connecting to GAS Supply Installing Bottom Mounting ScrewsPlacing Heater On Mounting Bracket Typical Inlet Pipe DiametersPressure Testing Heater GAS Connections Pressure Testing GAS Supply Piping SystemChecking GAS Connections PsigFor Your Safety Read Before Lighting Manual Lighting ProcedureOperating Heater Lighting InstructionsCleaning and Maintenance Inspecting BurnerTroubleshooting Observed Problem Possible Cause RemedyTroubleshooting Ing Gas Connections, Technical Service Service HintsAccessories SpecificationsIllustrated Parts Breakdown RN30DODS/Pilot Parts List KEY Part Number Description QTYCGN20 CGN20L Parts List Replacement Parts Centrals Parts Under WarrantyParts not Under Warranty 103568 103568 103568 Warranty Information Limited Warranty Comfort Glow VENT-FREE Heaters

CGN20L, CGN20, RN30D specifications

Desa RN30D, CGN20, and CGN20L are innovative models designed to meet the diverse needs of users looking for reliable and efficient solutions in various applications. These models are renowned for their advanced technologies and impressive features that set them apart in the market.

The Desa RN30D is a robust unit primarily known for its high efficiency and durable construction. It operates with a powerful engine that utilizes advanced fuel technology, making it not only environmentally friendly but also cost-effective. This model comes equipped with a state-of-the-art control system that ensures optimal performance and user-friendly operation. The RN30D is ideal for both commercial and residential uses, providing a versatile option for users needing dependable energy solutions.

On the other hand, the CGN20 and CGN20L models focus on providing energy in compact forms. These models feature a lightweight design, which enhances portability without compromising on performance. The CGN20 is tailored for medium-scale applications, while the CGN20L offers additional capacity and features for larger needs. Both models benefit from cutting-edge inverter technology that allows for stable and consistent output, essential for sensitive electronics.

A standout characteristic of the CGN20 and CGN20L is their quiet operation. Noise reduction technologies have been integrated, making them perfect for use in residential areas or noise-sensitive environments. Furthermore, they are designed with enhanced cooling systems, ensuring reliability even during extended usage.

Each of these models includes safety features such as overload protection and low oil shutdown, providing peace of mind to operators. They are also equipped with multiple outlets, allowing users to connect various devices simultaneously.

In summary, the Desa RN30D, CGN20, and CGN20L cater to a broad spectrum of users, from homeowners to businesses. Their combination of durability, efficiency, advanced technology, and safety features makes them an excellent investment for energy solutions. Whether you require substantial power or a compact, portable option, these models deliver unmatched performance tailored to meet your specific energy needs.
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