Vanguard Heating VSGF28NVA, VSGF28NTC installation manual Maintenance

Page 20

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UNVENTED NATURAL GAS FIREPLACE

TROUBLESHOOTING

Continued

OBSERVED PROBLEM

POSSIBLE CAUSE

REMEDY

One or both burners do not light after ODS/

1.

Burner orifice(s) clogged

1.

Clean burner(s) (see Cleaning and Main-

pilot is lit

 

 

 

tenance, page 18) or replace burner

 

 

 

 

orifice(s)

 

2.

Burner orifice(s) diameter is too small

2.

Replace burner orifice(s)

 

3.

Inlet gas pressure is too low

3.

Contact local natural gas company

 

4.

Mislocated crossover tube

4.

Contact qualified service person

 

 

 

 

 

Delayed ignition of one or both burners

1.

Manifold pressure is too low

1.

Contact local natural gas company

 

2.

Burner orifice(s) clogged

2.

Clean burner(s) (see Cleaning and Main-

 

 

 

 

tenance, page 18) or replace burner

 

 

 

 

orifice(s)

 

3.

Mislocated crossover tube

3.

Contact qualified service person

 

 

 

 

 

Burner backfiring during combustion

1.

Burner orifice is clogged or damaged

1.

Clean burner (see Cleaning and Mainte-

 

 

 

 

nance, page 18) or replace burner orifice

 

2.

Damaged burner

2.

Replace damaged burner

 

3.

Gas regulator defective

3.

Replace gas regulator

 

 

 

 

 

Yellow flame in front burner during burner

1.

Not enough air

1.

Check burner(s) for dirt and debris. If

combustion

 

 

 

found, clean burner(s) (see Cleaning and

 

 

 

 

Maintenance, page 18)

 

2.

Gas regulator defective

2.

Replace gas regulator

Slight smoke or odor during initial operation 1. Residues from manufacturing processes and logs curing

1.Problem will stop after a few hours of operation

Fireplace produces a whistling noise when 1.

Turning control knob to HI position

1.

Turn control knob to LO position and

burners are lit

when burners are cold

 

let warm up for a minute

2.

Air in gas line

2.

Operate burners until air is removed

 

 

 

from line. Have gas line checked by lo-

 

 

 

cal natural gas company

3.

Air passageways on fireplace blocked

3.

Observe minimum installation clear-

 

 

 

ances (see pages 8 through 10)

4.

Dirty or partially clogged burner

4.

Clean burners (see Cleaning and Main-

 

orifice(s)

 

tenance, page 18) or replace burner

 

 

 

orifice(s)

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

1.When heated, vapors from furniture pol- ish, wax, carpet cleaners, etc. turn into white powder residue

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

Dark residue on logs or inside of fireplace

1.

Improper log placement

1.

Properly locate logs (see Installing Logs,

Note: After removing all causes of residue

 

 

 

page 13)

deposits, completely clean fireplace and ap-

2.

Drafts or other air currents affecting

2.

Eliminate source of drafts around heater

pliance of all residue before reusing appliance.

 

flame pattern

 

 

 

3.

Air holes at burner inlet blocked

3.

Clean out air holes at burner inlet. Peri-

 

 

 

 

odically repeat as needed

 

4.

Burner flame holes blocked

4.

Remove blockage or replace burner

 

 

www.desatech.com

 

Continued

For more information, visit www.desatech.com

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Contents OWNER’S Operation and Installation Manual VSGF28NVAVSGF28NTC What to do if YOU Smell GASSafety Information Unvented Natural GAS FireplaceUnpacking Product IdentificationLocal Codes Product Features AIR for Combustion and VentilationDetermining if You Have a Confined or Unconfined Space AIR for Combustion VentilationDetermining FRESH-AIR Flow for Fireplace Location Ventilation Air From Outdoors Ventilation AIRVentilation Air From Inside Building Installation Installing HoodCheck GAS Type Electrical HookupInstallation Clearances Conventional Fireplace InstallationBUILT-IN Fireplace Installation Actual Framing Height 32 3/8 Front Width DepthInstalling GAS Piping to InstallationInstallation Items Needed Fireplace LocationConnecting Fireplace to GAS Supply Pipe Nipple Cap Tee Joint Sediment TrapChecking GAS Connections Pressure Testing Gas Supply Piping SystemPressure Testing Fireplace Gas Connections Installing Logs Installing Front Log #1For Your Safety Read Before Lighting Operating FireplaceLighting Instructions Thermostat-Controlled ModelsThermostat Control Operation Manual Lighting ProcedureTo Turn OFF GAS To Appliance Variable Control Operation Inspecting Burners Blower Operation Model VSGF28NTCModel VSGF28NVA Pilot Flame PatternCleaning and Maintenance Cleaning Burner Injector Holder and Pilot AIR Inlet HoleFront Burner Flame Pattern LogsTroubleshooting Observed Problem Possible Cause RemedyMaintenance, Gas leak. See Warning statement Technical Service Replacement PartsService Hints Wiring DiagramBrass Trim Accessory GA6090 Cleaning KIT CCKSlim Hearth Base Equipment Shutoff Valve GA5010Illustrated Parts Breakdown Parts List KEY Part Number Description QTYIllustrated PARTS7 Breakdown Fireplace VSGF28NVAParts List LOG Base Assembly THERMOSTAT- Controlled Model VSGF28NTC Parts List Fireplace VSGF28NTC Parts List Warranty Information