ing Gas Connections, page 12)

TROUBLESHOOTING

19

TROUBLESHOOTING

Continued

1. 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 just after burner is lit or shut off

1.Metal expanding while heating or con- tracting while cooling

1.This is common with most heaters. If noise is excessive, contact qualified ser- vice person

Heater produces unwanted odors

1.

Heater burning vapors from paint, hair

 

 

spray, glues, etc. (see IMPORTANT

 

 

statement above)

 

2.

Low fuel supply (propane/LP gas only)

 

3.

Gas leak. See Warning statement at

 

 

top of page

1.Ventilate room. Stop using odor caus- ing products while heater is running

2.Refill supply tank

3.Locate and correct all leaks (see Check- ing Gas Connections, page 12)

Heater shuts off in use (ODS operates)

1.

Not enough fresh air is available

1.

Open window and/or door for ventilation

 

2.

Low line pressure

2.

Contact local natural or propane/LP gas

 

 

 

 

company

 

3.

ODS/pilot is partially clogged

3.

Clean ODS/pilot (see Cleaning and

 

 

 

 

Maintenance, page 15)

 

 

 

 

 

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 12)

 

2.

Control valve defective

2.

Replace control valve

 

 

 

 

 

Gas odor during combustion

1.

Foreign matter between control valve

 

 

and burner

 

2.

Gas leak. See Warning statement at

 

 

top of page

1.Take apart gas tubing and remove for- eign matter

2.Locate and correct all leaks (see Check- ing Gas Connections, page 12)

Moisture/condensation noticed on windows 1. Not enough combustion/ventilation air

1. Refer to Air for Combustion and Venti-

 

lation requirements (page 4)

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Desa CBN20 installation manual Troubleshooting, Continued, Observed Problem, Possible Cause, Remedy, Maintenance, page