Desa 103426-01 Troubleshooting, Continued, Observed Problem, Possible Cause, Remedy

Page 19
Maintenance, page 17)

SPLIT OAK AND AMERICAN OAK DESIGN 18", 24" AND 30" MODELS

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 gas company

pilot is lit

2.

Burner orifice(s) clogged

2.

Clean burner(s) (see Cleaning and Main-

 

 

 

 

tenance, page 17) 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)

 

 

 

 

 

 

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 17) 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 17) or replace burner ori-

 

 

 

 

fice

 

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 17)

 

2.

Gas regulator defective

2.

Replace gas regulator

 

 

 

 

 

 

Slight smoke or odor during initial opera- tion

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 gas company

 

3.

Air passageways on heater blocked

3.

Observe minimum installation clear-

 

 

 

 

ances (see pages 6-8)

 

4.

Dirty or partially clogged burner

4.

Clean burners (see Cleaning and Main-

 

 

orifice(s)

 

tenance, page 17) or replace burner

 

 

 

 

orifice(s)

 

 

 

 

 

Moisture/condensation noticed on windows

1.

Not enough combustion/ventilation air

1.

Refer to Air for Combustion and Venti-

 

 

 

 

lation requirements (page 4)

Continued

103426

19

Image 19
Contents —WHAT TO DO IF YOU SMELL GAS OWNER’S OPERATION AND INSTALLATION MANUALwhere not prohibited by state or local codes DESA INTERNATIONALUNVENTED NATURAL GAS LOG HEATER SAFETY INFORMATIONWARNINGS LOCAL CODES PRODUCT FEATURESSafety Device PRODUCT IDENTIFICATIONUnusually Tight Construction AIR FOR COMBUSTION AND VENTILATIONPROVIDING ADEQUATE VENTILATION DETERMINING AIR FLOW FOR HEATER LOCATIONVentilation Air From Outdoors ContinuedVENTILATION AIR Ventilation Air From Inside BuildingCHECK GAS TYPE INSTALLATIONINSTALLATION AND CLEARANCES If Not Using MantelINSTALLATION If Using MantelMantel Clearances Determining Minimum Mantel ClearanceContinued Floor ClearancesINSTALLATION UNVENTED NATURAL GAS LOG HEATERContinued INSTALLING HEATER BASE ASSEMBLYInstallation Items Needed INSTALLATIONUNVENTED NATURAL GAS LOG HEATER CONNECTING TO GAS SUPPLYINSTALLATION Installation Items NeededTest Pressures In Excess Of 1/2 PSIG Pressure Testing Gas Supply Piping SystemPressure Testing Heater Gas Connections CHECKING GAS CONNECTIONSContinued INSTALLING LOGS American Oak Design ModelsINSTALLATION UNVENTED NATURAL GAS LOG HEATERFigure 24 - Installing Top Log #4 INSTALLING LOGS Split Oak Design ModelsINSTALLATION Figure 22 - Installing Bottom Middle LogLIGHTING INSTRUCTIONS Thermostat-ControlledModels FOR YOUR SAFETYOPERATING HEATER READ BEFORE LIGHTINGTO TURN OFF GAS TO APPLIANCE MANUAL LIGHTING PROCEDUREManually-ControlledModels FOR YOUR SAFETY Thermostat Controlled ModelsPILOT FLAME PATTERN INSPECTING BURNERSManually-ControlledModels VARIABLE CONTROL OPERATIONLOGS CLEANING AND MAINTENANCEFRONT BURNER FLAME PATTERN ODS/PILOT AND BURNERSREMEDY TROUBLESHOOTINGOBSERVED PROBLEM POSSIBLE CAUSEContinued TROUBLESHOOTINGOBSERVED PROBLEM Maintenance, pageUNVENTED NATURAL GAS LOG HEATER TROUBLESHOOTINGOBSERVED PROBLEM Maintenance, pageFor Masonry and Factory- built Metal Fireplace OPTIONAL POSITIONING OF THERMOSTAT SENSING BULBTECHNICAL SERVICE SPECIFICATIONSREPLACEMENT PARTS SERVICE HINTSBRASS FIREPLACE HOOD - GA6052 ACCESSORIESMANUAL SHUTOFF VALVE - GA5010 BLACK FIREPLACE HOOD - GA6050UNVENTED NATURAL GAS LOG HEATER ILLUSTRATED PARTS BREAKDOWN4Variable Manually Controlled Models VS18NVB CFS18NVB VS24NVB CFS24NVB VS30NVB CFS30NVBVS18NVB/CFS18NVB PARTS LISTVariable Manually-ControlledSplit Oak Models PART NUMBER FORUNVENTED NATURAL GAS LOG HEATER ILLUSTRATED PARTS BREAKDOWNVS18NTA Thermostat-ControlledSplit Oak ModelsPARTS LIST PART NUMBER FORUNVENTED NATURAL GAS LOG HEATER ILLUSTRATED PARTS3 BREAKDOWNVariable Manually-Controlled Models VL18NV VL24NV VL30NVVL18NV Variable Manually-ControlledAmerican Oak ModelsPARTS LIST PART NUMBER FORUNVENTED NATURAL GAS LOG HEATER Page WARRANTY INFORMATION LIMITED WARRANTY VENT-FREENATURAL GAS LOG HEATERSNOT A UPC