Desa VF-18P-MHd, VF-18N-MHd installation manual See Cleaning and Mainte

Page 22

troubleshooting

Continued

OBSERVED PROBLEM

POSSIBLE CAUSE

REMEDY

Burner backfiring during com-

1.

Burner orifice is clogged or

1.

Clean burner (see Cleaning

 

bustion

 

damaged

 

and Maintenance, page 19) or

 

2.

Damaged burner

2.

replace burner orifice

 

Replace damaged burner

 

3.

Gas regulator defective

3.

Replace gas regulator

 

 

 

 

 

 

Orange flame in burner during

1.

Not enough air

1.

Check burner for dirt and

burner combustion

 

 

 

debris. If found, clean burner

 

 

 

 

(see Cleaning and Mainte-

 

2.

Gas regulator defective

2.

nance, page 19)

 

Replace gas control

 

 

 

 

 

 

Slight smoke or odor during

1.

Residues from manufacturing

1.

Problem will stop after a few

initial operation (first hour)

 

processes and logs curing

 

hours of operation

 

 

 

 

 

 

Heater produces awhistling noise

1.

Turning control knob to HI

1.

Turn control knob to LO

when burner is lit

 

position when burner is cold

 

position and let warm up for

 

2.

Air in gas line

2.

a minute

 

Operate burner until air is

 

 

 

 

removed from line. Have gas

 

 

 

 

line checked by local natural

 

3.

Air passageways on heater

3.

or propane/LP gas company

 

Observe minimum installation

 

4.

blocked

4.

clearances (see page 9)

 

Dirty or partially clogged

Clean burner (see Cleaning

 

 

burner orifice(s)

 

and Maintenance, page 19) or

 

 

 

 

replace burner orifice

 

 

 

 

 

 

White powder residue forming

1.

When heated, vapors from

1.

Turn heater off when using

within burner box or on adjacent

 

furniture polish, wax, carpet

 

furniture polish, wax, carpet

walls or furniture

 

cleaners, etc. may turn into

 

cleaners or similar products

 

 

white powder residue

 

 

 

 

 

 

 

 

 

Moisture/condensation noticed

1.

Not enough combustion/ven-

1.

Refer to Air for Combustion

on windows

 

tilation air

 

and Ventilation requirements

 

 

 

 

(page 5)

22

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Contents What to do if YOU Smell GAS Models VF-18N-MHD, VF-18P-MHD, VF-24N-MHD VF-24P-MHDTable of Contents Safety Information Product Identification Product IdentificationUnpacking Product FeaturesLocal Codes Air For Combustion VentilationConfined and Unconfined Space Determining fresh-air flow for heater locationDetermining if You Have a Confined or Unconfined Space Ventilation Air From Inside Building Ventilation AIRVentilation Air From Outdoors Installation Check GAS TypeInstallation and clearances for vent-free operation Installation Mantel Clearances Installing Heater AssemblyDetermining Minimum Mantel Clearance When using a Hood Floor ClearancesConnecting to gas supply Installation Items NeededNatural Gas Checking gas connectionsPropane/LP Gas Adding Embers, Lava rock and Decorative logs Pressure Testing Heater Gas ConnectionsTest Pressures Equal To or Less Than Psig 3.5 kPa For your safety Read before lighting Operating HeaterRemote Control FunctionsProcedure Manual LightingPilot Flame Pattern Inspecting BurnersTo turn gas off To appliance Lighting with Piezo IgnitorBurner Flame Pattern Cleaning MaintenanceBurner Injector Holder Air Inlet Hole Injector Holder on Front Burner Tube Troubleshooting Observed Problem Possible Cause RemedySee Cleaning and Mainte Bad module Replace module Gas leak. See WarningWiring Diagram Identifying error signals from receiverTechnical Service Replacement PartsService Hints AccessoriesIllustrated Parts Breakdown Models VF-18N-MHD, VF-18P-MHD, VF-24N-MHD and VF-24P-MHDParts List Keep this Warranty Warranty InformationLimited Warranty VENT-FREE GAS LOG Heaters