Desa VF-18P-EMU, VF-18N-EMU, VF-24P-EMU, VF-24N-EMU Refer to Air for Combustion and Venti

Page 20

20

TROUBLESHOOTING

TROUBLESHOOTING

Continued

OBSERVED PROBLEM

POSSIBLE CAUSE

REMEDY

 

 

 

 

 

One or both burner does not light after

1.

Inlet gas pressure is too low

1.

Contact local natural or propane/LP gas

ODS/pilot is lit

 

 

 

company

 

2.

Burner orifice(s) clogged

2.

Clean burner(s) (see Cleaning and

 

 

 

 

Maintenance, page 18) or replace burner

 

 

 

 

orifice(s)

 

3.

Mislocated crossover tube

3.

Contact qualified service person

 

4.

Burner orifice(s) diameter is too small

4.

Replace burner orifice(s)

 

5.

Remote selector in OFF position (Re-

5.

Put remote selector in ON position

 

 

mote-Ready Models Only)

 

 

 

6.

Wire disconnected from gas control

6.

See Wiring Diagram, page 23

 

 

(Remote-Ready Models Only)

 

 

 

 

 

 

 

Delayed ignition of burner

1.

Manifold pressure is too low

1.

Contact local natural or propane/LP gas

 

 

 

 

company

 

2.

Burner orifice(s) clogged

2.

Clean burner(s) (see Cleaning and

 

 

 

 

Maintenance, 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 Main-

 

 

 

 

tenance, page 18) or replace burner

 

 

 

 

orifice

 

2.

Damaged burner

2.

Replace damaged burner

 

3.

Gas regulator defective

3.

Replace gas regulator

 

 

 

 

 

Orange flame in 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 op-

1.

Residues from manufacturing processes

1.

Problem will stop after a few hours of

eration

 

and logs curing

 

operation

 

 

 

 

 

 

1.

Turning control knob to HI position

1.

Turn control knob to LO position and let

Heater produces a whistling noise when

 

when burners are cold

 

warm up for a minute

burners are lit

2.

Air in gas line

2.

Operate burners until air is removed

 

 

 

 

from line. Have gas line checked by lo-

 

 

 

 

cal natural or propane/LP gas company

 

3.

Air passageways on heater blocked

3.

Observe minimum installation clear-

 

 

 

 

ances (see pages 7 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

1.

When heated, vapors from furniture pol-

1.

Turn heater off when using furniture

box or on adjacent walls or furniture

 

ish, wax, carpet cleaners, etc. turn into

 

polish, wax, carpet cleaners, or similar

 

 

white powder residue

 

products

 

 

 

 

 

Moisture/condensation noticed on win-

1.

Not enough combustion/ventilation air

1.

Refer to Air for Combustion and Venti-

dows

 

 

 

lation requirements (page 4)

For more information, visit www.desatech.com

111826-05

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Contents VF-24N-EMU VF-24P-EMU VF-18N-EMU VF-18P-EMU What to do if YOU Smell GASTable of Contents Safety InformationProduct Identification Product IdentificationOptional Remote Control Accessories Product FeaturesLocal Codes UnpackingDetermining if You Have a Confined or Unconfined Space Determining FRESH-AIR Flow for Heater LocationConfined and Unconfined Space Ventilation Air From Outdoors Ventilation AIRVentilation Air From Inside Building Check GAS Type InstallationInstallation and Clearances for VENT-FREE Operation If Not Using Mantel Minimum Noncombustible Material ClearancesDetermining Minimum Mantel Clearance When Using a Hood Mantel ClearancesFloor Clearances Determining Minimum Mantel ClearanceInstalling Damper Clamp Accessory for Vented Operation Installing Heater AssemblyInstallation Items Needed Area of Various Standard Round FluesConnecting to GAS Supply Checking GAS Connections Pressure Testing gas Supply Piping systemPressure Testing Heater Gas Connections Checking Gas Joints propane/LP only Lighting Instructions For Your Safety Read Before LightingOperating Heater To Turn OFF GAS to Appliance Manual Lighting ProcedureRemote Control Operation Selector Toggle Switch Optional Remote Control Burner Flame Pattern Inspecting BurnersPilot Flame Pattern Logs Cleaning and MaintenanceCleaning Burner Injector Holder and Pilot AIR Inlet Hole Troubleshooting Observed Problem Possible Cause RemedyRefer to Air for Combustion and Venti Gas leak. See Warning statement at Specifications VF-18N-EMU VF-24N-EMUWiring Diagram Service HintsTechnical Service Replacement PartsLog sets and mounting plates are ordered as an assembly Illustrated Parts BreakdownVF-24N-EMU Parts List Parts ListAccessories This page Intentionally Left Blank Owners Registration Form Postage Required 111826-05 Warranty Information