Desa CGN10TLA, CGN10TA installation manual Maintenance

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CGN10TA and CGN10TLA

VENT-FREE NATURAL GAS HEATER

TROUBLESHOOTING

Continued

OBSERVED PROBLEM

POSSIBLE CAUSE

REMEDY

Burner does not light after ODS/pilot is lit

1.

Burner orifice is clogged

1.

Clean burner orifice (see Cleaning and

 

 

 

 

Maintenance, page 12) 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.

Contact local natural gas company

 

2.

Burner orifice is clogged

2.

Clean burner orifice (see Cleaning and

 

 

 

 

Maintenance, page 12) or replace burner

 

 

 

 

orifice

 

 

 

 

 

Burner backfiring during combustion

1.

Burner orifice is clogged or damaged

1.

Clean burner orifice (see Cleaning and

 

 

 

 

Maintenance, page 12) or replace burner

 

 

 

 

orifice

 

2.

Inlet gas pressure is too low

2.

Contact local natural gas company

 

3.

Burner damaged

3.

Replace burner

 

4.

Gas regulator defective

4.

Replace gas regulator

 

 

 

 

 

Yellow flame during burner combustion

1.

Not enough air

1.

Check burner for dirt and debris. If

 

 

 

 

found, clean burner (see Cleaning and

 

 

 

 

Maintenance, page 12)

 

2.

Inlet gas pressure is too low

2.

Contact local natural gas company

 

3.

Gas regulator defective

3.

Replace gas regulator

 

 

 

 

 

Slight smoke or odor during initial operation

1.

Residues from manufacturing processes

1.

Problem will stop after a few hours of

 

 

 

 

operation

 

 

 

 

 

Heater produces a whistling noise when

1.

Turning control knob to HI position

1.

Turn control knob to LO position and

burner is lit

 

when burner is cold

 

let warm up for a minute

 

2.

Air in gas line

2.

Operate burner until air is removed from

 

 

 

 

line. Have gas checked by local natural

 

 

 

 

gas company

 

3.

Air passageways on heater blocked

3.

Observe minimum installation clear-

 

 

 

 

ances (see Figure 4, page 7)

 

4.

Dirty or partially clogged burner orifice

4.

Clean burner (see Cleaning and Mainte-

 

 

 

 

nance, page 12) or replace burner orifice

White powder residue forming within burner box or on adjacent walls or furniture

1.When heated, vapors from furniture pol- ish, wax, carpet cleaners, or similar prod- ucts

1.Turn heater off when using furniture polish, wax, carpet cleaners, or similar products

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Contents CGN10TA CGN10TLA What to do if YOU Smell GASSafety Information VENT-FREE Natural GAS HeaterLocal Codes Product FeaturesProduct Identification UnpackingUnusually Tight Construction AIR for Combustion and VentilationProviding Adequate Ventilation Confined and Unconfined SpacesDetermining if You Have a Confined or Unconfined Space AIR for Combustion VentilationDetermining FRESH-AIR Flow for Heater Location Ventilation Air From Outdoors Ventilation AIRVentilation Air From Inside Building Installation Placing Heater On Mounting Screws Installing Two Mounting ScrewsInstalling Bottom Mounting Screw Removing Front Panel Of HeaterConnecting to GAS Supply Gas ConnectionPressure Testing Heater Gas Connection For Your Safety Read Before LightingPressure Testing Gas Supply Piping System Operating HeaterTo Turn OFF GAS to Appliance Manual Lighting ProcedureLighting Instructions Thermostat Control OperationCleaning and Maintenance Inspecting BurnerTroubleshooting Observed Problem Possible Cause RemedyMaintenance , Gas leak. See Warning statement at Accessory Technical ServiceService Hints Replacement PartsParts Central CGN10TLA Illustrated Parts BreakdownCGN10TA Parts List CGN10TA CGN10TLAWarranty Information