TROUBLE- SHOOTING

Continued

OBSERVED

POSSIBLE

 

 

PROBLEM

CAUSE

REMEDY

 

 

 

 

 

Burner does not light

2.

Burner orifice diameter

2.

Replace burner orifice

after ODS/pilot is lit

 

is too small

 

 

(continued from page

3.

Inlet gas pressure is

3.

Contact local natural gas

22)

 

too low

 

company

 

 

 

 

 

Delayed ignition of

1.

Manifold pressure is

1.

Contact local natural gas

burner

 

too low

 

company

 

2.

Burner orifice is

2.

Clean burner (see

 

 

clogged

 

Cleaning and Mainte-

 

 

 

 

nance, page 21) or

 

 

 

 

replace burner orifice

 

 

 

 

 

Burner backfiring

1.

Burner orifice is

1.

Clean burner (see

during combustion

 

clogged or damaged

 

Cleaning and Mainte-

 

 

 

 

nance, page 21) or

 

 

 

 

replace burner orifice

 

2.

Burner damaged

2.

Replace burner

 

3.

Gas regulator defective

3.

Replace gas regulator

 

 

 

 

Yellow flame during

1. Not enough air

1.

Check burner for dirt

burner combustion

 

 

 

and debris. If found,

 

 

 

 

clean burner (see

 

 

 

 

Cleaning and Mainte-

 

 

 

 

nance, page 21)

 

2.

Gas regulator defective

2.

Replace gas regulator

 

 

 

 

Slight smoke or odor

1. Residues from manu-

1.

Problem will stop after a

during initial opera-

 

facturing processes

 

few hours of operation

tion

 

 

 

 

 

 

 

 

Heater produces a

1. Turning control knob

1.

Turn control knob to

whistling noise when

 

to HIGH position

 

LOW position and let

burner is lit

 

when burner is cold

 

warm up for a minute

 

2.

Air in gas line

2.

Operate burner until air

 

 

 

 

is removed from line.

 

 

 

 

Have gas line checked

 

 

 

 

by local natural gas

 

 

 

 

company

 

3.

Air passageways on

3.

Observe minimum

 

 

heater blocked

 

installation clearances

 

 

 

 

(see Figure 4, page 10)

 

4.

Dirty or partially

4.

Clean burner (see

 

 

clogged burner orifice

 

Cleaning and Mainte-

 

 

 

 

nance, page 21) or

 

 

 

 

replace burner orifice

Continued

23

100096

Page 23
Image 23
Desa RN30B, CGN18B installation manual From

RN30B, CGN18B specifications

Desa CGN18B and RN30B are innovative indoor heating solutions that cater to both residential and commercial needs, offering efficient heating capabilities with advanced features. Both models have carved a niche for themselves in the market, owing to their reliable performance, user-friendly interfaces, and modern design.

The Desa CGN18B is a gas-fired vent-free heater that has garnered attention due to its sleek design and compact size, making it an excellent choice for smaller spaces. With a heating capacity of 18,000 BTUs, it can effectively warm up areas up to 700 square feet, which is ideal for bedrooms, living rooms, or even office settings. One of the standout features of the CGN18B is its thermostat, which allows users to maintain their desired room temperature, enhancing comfort while optimizing energy consumption. The model operates without the need for external venting, which simplifies installation and reduces overall costs. Additionally, the CGN18B boasts safety features such as an oxygen depletion sensor, which automatically shuts the heater off if oxygen levels fall below a safe threshold, ensuring peace of mind for users.

On the other hand, the Desa RN30B is a dual-fuel heater that offers versatility by accommodating both liquid propane and natural gas. This flexibility makes it a preferred option for homeowners who may want to switch fuel sources based on availability or preference. With a robust heating capacity of 30,000 BTUs, the RN30B can comfortably heat larger spaces, up to 1,000 square feet. This model is particularly designed for heavy-duty use, making it suitable for workshops or larger living areas. The RN30B comes equipped with an electronic ignition system that simplifies startup, eliminating the need for matches or lighters. Moreover, its sleek design allows it to blend seamlessly with various interior styles, while the easy-to-use control panel enhances user experience.

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