Desa CGN20TB ing Gas Connections, page, Refer to Air for Combustion and Venti, Troubleshooting

Models: CGN20TLB CGN30TB CGN30TLB CGN20TB

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ing Gas Connections, page 11)

BLUE FLAME NATURAL GAS HEATER

TROUBLESHOOTING

Continued

Refer to Air for Combustion and Venti- WARNING: If you smell gas

Shut off gas supply.

Do not try to light any appliance.

Do not touch any electrical switch; do not use any phone in your building.

Immediately call your gas supplier from a neighbor’s phone. Follow the gas supplier’s instructions.

If you cannot reach your gas supplier, call the fire department.

IMPORTANT: Operating heater where impurities in air exist may create odors. Cleaning supplies, paint, paint remover, cigarette smoke, cements and glues, new carpet or textiles, etc., create fumes. These fumes may mix with combustion air and create odors.

OBSERVED PROBLEM

POSSIBLE CAUSE

REMEDY

Heater produces a clicking/ticking noise

1.

Metal expanding while heating or con-

1.

This is common with most heaters. If

just after burner is lit or shut off

 

tracting while cooling

 

noise is excessive, contact qualified ser-

 

 

 

 

vice person

 

 

 

 

 

Heater produces unwanted odors

1.

Heater burning vapors from paint, hair

1.

Ventilate room. Stop using odor causing

 

 

spray, glues, etc. (see IMPORTANT

 

products while heater is running

 

 

statement above)

 

 

 

2.

Gas leak. See Warning statement at

2.

Locate and correct all leaks (see Check-

 

 

top of page

 

ing Gas Connections, page 11)

Heater shuts off in use (ODS operates)

1.

Not enough fresh air is available

 

2.

Low line pressure

 

3.

ODS/pilot is partially clogged

1.Open window and/or door for ventilation

2.Contact local natural gas company

3.Clean ODS/pilot (see Cleaning and Maintenance, page 13)

Gas odor even when control knob is in OFF

1.

Gas leak. See Warning statement at

1.

Locate and correct all leaks (see Check-

position

 

top of page

 

ing Gas Connections, page 11)

 

2.

Control valve defective

2.

Replace control valve

 

 

 

 

 

Gas odor during combustion

1.

Foreign matter between control valve

1.

Take apart gas tubing and remove for-

 

 

and burner

 

eign matter

 

2.

Gas leak. See Warning statement at

2.

Locate and correct all leaks (see Check-

 

 

top of page

 

ing Gas Connections, page 11)

 

 

 

 

 

Moisture/condensation noticed on windows

1.

Not enough combustion/ventilation air

1.

Refer to Air for Combustion and Venti-

 

 

 

 

lation requirements (page 4)

www.desatech.com

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Desa CGN20TB ing Gas Connections, page, Refer to Air for Combustion and Venti, Blue Flame Natural Gas Heater, Continued