Desa INTERNATIONAL UNVENTED (VENT-FREE) GAS LOG HEATER Refer to Air for Combustion and Venti

Page 26

26

TROUBLESHOOTING

TROUBLESHOOTING

Continued

OBSERVED PROBLEM

POSSIBLE CAUSE

REMEDY

One or both burners do not light after ODS/

1.

Inlet gas pressure is too low

1.

Contact local natural or propane/LP gas

pilot is lit

 

 

 

company

 

2.

Burner orifice(s) clogged

2. Clean burner(s) (see Cleaning and Mainte-

 

 

 

 

nance, page 24) 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.

Thermopile leads disconnected or im-

5.

Reconnect leads (see Wiring Diagram,

 

 

properly connected (Remote-Ready

 

page 29)

 

 

Models Only)

 

 

 

6.

Burners will not come on in remote po-

6.

Replace battery in transmitter and

 

 

sition (Remote-Ready Models Only)

 

receiver

 

 

 

 

 

Delayed ignition of one or both burners

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 Main-

 

 

 

 

tenance, page 24) 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 24) 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 24)

 

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

Heater 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 or propane/LP gas company

3.

Air passageways on heater 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 24)) or replace burner

 

 

 

orifice(s)

White powder residue forming within burner

1. When heated, vapors from furniture pol-

box or on adjacent walls or furniture

ish, wax, carpet cleaners, etc. turn into

 

white powder residue

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

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

1. Refer to Air for Combustion and Venti-

 

lation requirements (page 5)

For..com

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Contents International OWNER’S Operation and Installation Manual What to do if YOU Smell GASTable of Contents Safety InformationSafety Information Local Codes Optional Remote Control AccessoriesProduct Identification UnpackingProduct Features AIR for Combustion and VentilationDetermining FRESH-AIR Flow for Heater Location Determining if You Have a Confined or Unconfined SpaceVentilation Air From Outdoors Ventilation AIRVentilation Air From Inside Building Installation Check GAS TypeMinimum Noncombustible Material Clearances See Between 8Floor Clearances Determining Minimum Mantel Clearance When Using a HoodMantel Clearances Determining Minimum Mantel ClearanceInstallation Items Needed Installing Damper Clamp Accessory for Vented OperationInstalling Heater Base Assembly Remote-Ready Models OnlyConnecting to GAS Supply External Regulator With Vent Pointing Down Checking GAS Connections Pressure Testing gas Supply Piping systemPressure Testing Heater Gas Connections Installing Logs Installing Log #2 Model CGX3930NT ShownInstalling Log #3 Model VGX30NT Shown Installing Log #3 Model LGX3924NT Shown Models LGX3924NT and LGX3924PTAdding Lava Rock Attaching Grate to Base AssemblyOperating Heater Lighting InstructionsShutting Off Burners Only pilot stays lit To Turn OFF GAS to ApplianceShutting Off Heater Thermostat Control Operation Manual Lighting ProcedureREMOTE-READY Models For Your Safety Read Before Lighting Flame Ghrc Series Operation Optional Remote OperationThermostat Control Operation Ghrcta Series OperationFront Burner Flame Pattern Inspecting BurnersPilot Flame Pattern Logs Cleaning 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 Optional Positioning of Thermostat Sensing Bulb Important Do not crimp capillaryService Hints SpecificationsWiring Diagram Technical ServiceIllustrated Parts Breakdown Illustrated Parts BreakdownParts List Parts ListTHERMOSTAT-CONTROLLED VGX24NT, VGX24PT VGX30NT, VGX30PT29 THERMOSTAT-CONTROLLED Parts Available not ShownCGX3924NR, CGX3924PR REMOTE-READY LGX3924NT, LGX3924PT KEY Part Number LGX3924NT LGX3924PT Description QTY Replacement Parts AccessoriesOwners Registration Form International For . .com Not a UPC

INTERNATIONAL UNVENTED (VENT-FREE) GAS LOG HEATER specifications

The Desa International Unvented (Vent-Free) Gas Log Heater stands as a remarkable solution for those seeking an efficient and aesthetically pleasing heating option for their homes. Recognized for its innovative design and advanced technology, this heater offers numerous benefits that cater to both functionality and style.

One of the main features of the Desa gas log heater is its vent-free design. This characteristic eliminates the need for ductwork or exhaust systems, allowing for easy installation in various locations, including living rooms, bedrooms, or recreational areas. With no external venting required, homeowners can enjoy increased flexibility in placement while saving on installation costs and labor. Moreover, the heater can fit seamlessly into existing fireplaces, creating a cozy ambiance without the need for traditional firewood.

Another standout feature of the Desa vent-free gas log heater is its exceptional energy efficiency. Utilizing infrared technology, the heater converts a high percentage of gas to heat, warming spaces quickly and reducing energy consumption. The unit is designed to operate with natural gas or propane, offering versatility depending on the homeowner's fuel preferences.

Safety is a top priority in the design of the Desa gas log heater. Equipped with an automatic shut-off system and an oxygen depletion sensor, the heater ensures secure operation by shutting down in case oxygen levels drop too low. This added safety feature provides peace of mind for families, allowing for safe use even during extended periods of operation.

Aesthetically, the Desa International gas log heater does not compromise on style. With an array of realistic log designs and finishes, homeowners can choose a heater that complements their interior decor perfectly. The unit’s flame effects mimic traditional wood-burning fires, enhancing the warm ambiance of any room.

In conclusion, the Desa International Unvented (Vent-Free) Gas Log Heater offers a unique combination of efficiency, safety, and aesthetics. Its vent-free design allows for flexible installation, while infrared heating technology ensures quick warmth and energy savings. Coupled with enhanced safety features and an attractive appearance, this gas log heater provides a practical and stylish heating solution for any home.
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