Desa INTERNATIONAL UNVENTED (VENT-FREE) GAS LOG HEATER installation manual Troubleshooting

Page 25

TROUBLESHOOTING

25

TROUBLESHOOTING

Note: For additional help, visit DESA International’s technical service web site at www.desatech.com.

Note: All troubleshooting items are listed in order of operation.

WARNING: Turn off heater and let cool before servicing. Only a qualified service person should service and repair heater.

CAUTION: Never use a wire, needle, or similar object to clean ODS/pilot. This can damage ODS/ pilot unit.

 

OBSERVED PROBLEM

POSSIBLE CAUSE

REMEDY

 

When ignitor button is pressed, there is no

1.

Ignitor electrode not connected to igni-

1.

Reconnect ignitor cable

 

spark at ODS/pilot

 

tor cable

 

 

 

 

2.

Ignitor cable pinched or wet

2.

Free ignitor cable if pinched by any

 

 

 

 

 

metal or tubing. Keep ignitor cable dry

 

 

3.

Piezo ignitor nut is loose

3.

Tighten nut holding piezo ignitor to base

 

 

 

 

 

panel of log set. Nut is located behind

 

 

 

 

 

base panel.

 

 

4.

Broken ignitor cable

4.

Replace ignitor cable

 

 

5.

Bad piezo ignitor

5.

Replace piezo ignitor

 

 

6.

Ignitor electrode positioned wrong

6.

Replace piezo ignitor

 

 

7.

Ignitor electrode broken

7.

Replace piezo ignitor

 

 

 

 

 

 

 

When ignitor button is pressed, there is

1.

Gas supply turned off or equipment

1.

Turn on gas supply or open equipment

 

spark at ODS/pilot but no ignition

 

shutoff valve closed

 

shutoff valve

 

 

2.

Control knob not in PILOT position

2.

Turn control knob to PILOT position

 

 

3.

Control knob not pressed in while in

3.

Press in control knob while in PILOT

 

 

 

PILOT position

 

position

 

 

4.

Air in gas lines when installed

4.

Continue holding down control knob.

 

 

 

 

 

Repeat igniting operation until air is

 

 

 

 

 

removed

 

 

5.

Depleted gas supply (propane/LP only)

5.

Contact local propane/LP gas company

 

 

6.

ODS/pilot is clogged

6.

Clean ODS/pilot (see Cleaning and

 

 

 

 

 

Maintenance, page 24) or replace ODS/

 

 

 

 

 

pilot assembly

 

 

7.

Gas regulator setting is not correct

7.

Replace gas regulator

 

 

 

 

 

 

 

ODS/pilot lights but flame goes out when

1.

Control knob not fully pressed in

1.

Press in control knob fully

 

control knob is released

2.

Control knob not pressed in long enough

2.

After ODS/pilot lights, keep control

 

 

 

 

 

knob pressed in 30 seconds

 

 

3.

Safety interlock system has been

3.

Wait one minute for safety interlock sys-

 

 

 

triggered (Termostat-Controlled Models

 

tem to reset. Repeat ignition operation

 

 

 

only)

 

 

 

 

4.

Equipment shutoff valve not fully open

4.

Fully open equipment shutoff valve

 

 

5.

Pilot flame not touching thermocouple,

5.

A) Contact local natural or propane/LP

 

 

 

which allows thermocouple to cool,

 

gas company

 

 

 

causing pilot flame to go out. This prob-

 

 

 

 

 

lem could be caused by one or both of

 

B) Clean ODS/pilot (see Cleaning and

 

 

 

the following:

 

Maintenance, page 24) or replace ODS/

 

 

 

A) Low gas pressure

 

pilot assembly

 

 

 

B) Dirty or partially clogged ODS/pilot

 

 

 

 

6.

Thermocouple connection loose at con-

6.

Hand tighten until snug, then tighten

 

 

 

trol valve

 

1/4 turn more

 

 

7.

Thermocouple damaged

7.

Replace thermocouple

 

 

8.

Control valve damaged

8.

Replace control valve

 

For

 

.

 

.com

108114

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Page 24 Page 26
Contents What to do if YOU Smell GAS International OWNER’S Operation and Installation ManualSafety Information Table of ContentsSafety Information Product Identification Optional Remote Control AccessoriesLocal Codes UnpackingAIR for Combustion and Ventilation Product FeaturesDetermining if You Have a Confined or Unconfined Space Determining FRESH-AIR Flow for Heater LocationVentilation Air From Inside Building Ventilation AIRVentilation Air From Outdoors Check GAS Type InstallationSee Between 8 Minimum Noncombustible Material ClearancesMantel Clearances Determining Minimum Mantel Clearance When Using a HoodFloor Clearances Determining Minimum Mantel ClearanceInstalling Heater Base Assembly Installing Damper Clamp Accessory for Vented OperationInstallation Items Needed Remote-Ready Models OnlyConnecting to GAS Supply External Regulator With Vent Pointing Down Pressure Testing Heater Gas Connections Pressure Testing gas Supply Piping systemChecking GAS Connections Installing Log #2 Model CGX3930NT Shown Installing LogsInstalling Log #3 Model VGX30NT Shown Models LGX3924NT and LGX3924PT Installing Log #3 Model LGX3924NT ShownOperating Heater Attaching Grate to Base AssemblyAdding Lava Rock Lighting InstructionsShutting Off Heater To Turn OFF GAS to ApplianceShutting Off Burners Only pilot stays lit REMOTE-READY Models For Your Safety Read Before Lighting Manual Lighting ProcedureThermostat Control Operation Flame Thermostat Control Operation Optional Remote OperationGhrc Series Operation Ghrcta Series OperationPilot Flame Pattern Inspecting BurnersFront Burner Flame Pattern Cleaning Burner Injector Holder and Pilot AIR Inlet Hole Cleaning MaintenanceLogs Observed Problem Possible Cause Remedy TroubleshootingRefer to Air for Combustion and Venti Gas leak. See Warning statement Important Do not crimp capillary Optional Positioning of Thermostat Sensing BulbWiring Diagram SpecificationsService Hints Technical ServiceIllustrated Parts Breakdown Illustrated Parts BreakdownParts List Parts ListTHERMOSTAT-CONTROLLED VGX24NT, VGX24PT VGX30NT, VGX30PT29 Parts Available not Shown THERMOSTAT-CONTROLLEDCGX3924NR, CGX3924PR REMOTE-READY LGX3924NT, LGX3924PT KEY Part Number LGX3924NT LGX3924PT Description QTY Accessories Replacement PartsOwners 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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