Desa VDCFTNB Burner orifice is clogged, Mote-Ready Models Only, Pane/LP gas company

Page 30

TROUBLESHOOTING

Continued

OBSERVED PROBLEM POSSIBLE CAUSE

REMEDY

ODS/pilot lights but flame goes out when control knob is released

1.Control knob not fully pressed in

2.Control knob not pressed in long enough

3.Safety interlock system has been triggered

4.Equipment shutoff valve not fully open

5.Pilot flame not touching ther- mocouple, which allows ther- mocouple to cool, causing pilot flame to go out. This problem could be caused by one or both of the following:

A)Low gas pressure

B)Dirty or partially clogged ODS/pilot

6.Thermocouple connection loose at control valve

7.Thermocouple damaged

8.Control valve damaged

1.Press in control knob fully

2.After ODS/pilot lights, keep control knob pressed in 30 seconds

3.Wait one minute for safety in- terlock system to reset. Repeat ignition operation

4.Fully open equipment shutoff valve

5.A) Contact local natural or propane/LP gas company

B)Clean ODS/pilot (see Cleaning and Maintenance, page 27) or replace ODS/pilot assembly

6.Hand tighten until snug, then tighten 1/4 turn more

7.Replace pilot assembly

8.Replace control valve

Burner does not light after 1. Inlet gas pressure is too low

ODS/pilot is lit

 

2.

Burner orifice is clogged

3.

Thermopile leads disconnected

 

or improperly connected (Re-

 

mote-Ready Models Only)

4.

Burners will not come on in re-

 

mote position (Remote-Ready

 

Models Only)

1.Contact local natural or pro- pane/LP gas company

2.Clean burner (see Cleaning and Maintenance, page 27) or replace burner orifice

3.Reconnect leads (see Wiring Diagram, page 28)

4.Replace battery in transmitter and receiver

Delayed ignition of burner

1. Manifold pressure is too low

1.

Contact local natural or pro-

 

 

 

 

 

pane/LP gas company

 

 

2.

Burner orifice is clogged

2.

Clean burner (see Cleaning

 

 

 

 

 

and Maintenance, page 27)

 

 

 

 

 

or replace burner orifice

 

 

 

 

 

Burner backfiring during com-

1. Burner orifice is clogged or

1.

Clean burner (see Cleaning

bustion

 

damaged

 

and Maintenance, page 27)

 

 

 

 

 

or replace burner orifice

 

 

2.

Damaged burner

2.

Replace damaged burner

 

 

3.

Gas regulator defective

3.

Replace gas regulator

 

 

4.

Inlet gas pressure is too low

4.

Contact local natural or pro-

 

 

 

 

 

pane/LP gas company

30

www.desatech.com

116526-01A

Image 30
Contents Shown with Optional Cabinet Mantel/Hearth Base Accessory What to do if YOU Smell GASTable of Contents Safety Information Safety Information Local Codes Product FeaturesProduct Identification UnpackingTools Required Phillips screwdriver Hood AssemblySheet Metal Screws Hood Louver Firebox Top Shoulder Screw ScreenAIR for Combustion Ventilation Providing Adequate VentilationDetermining FRESH-AIR Flow for Fireplace Location Ventilation AIR Ventilation Air From Inside BuildingVentilation Air From Outdoors Installation Check GAS TypeMinimum Clearance to Combustible Materials Installation ItemsFireplace Clearances TopFront Width BUILT-IN Fireplace InstallationActual Framing Height DepthSide of Firebox Optional Mantel InstallationMantel Shelf Top Louver Bottom LouverInstalling Optional Blower Accessory GA3450TA Plate Remote Wire Blower Harness Bracket Lower Louver Door Installing Blower AccessorySwitch Power Cord SwitchFor Built-In Installation Extension CordBlower Bracket Connecting to GAS Supply Connecting Equipment Shutoff Valve to Heater Control Installation Items NeededChecking GAS Connections Equipment Open Shutoff Valve Closed Pressure Testing Fireplace Gas ConnectionsEquipment Shutoff Valve Propane/LP Supply Tank Gas Regulator or Gas Control Valve EquipmentReceiver Volt Terminal Battery Wires Battery Clip Optional Wireless HAND-HELD Remote Control AccessoriesInstalling Receiver Installing 9-Volt Battery in Hand-Held Remote Control UnitInstall the base onto the wall with the pro- vided screws Control Valve To Wall Thermostat or Switch Or SwitchFeed wires through rectangular slots Remove jumper wire from control valve see ,Operating Fireplace Installing LOG SET and ScreenFor Your Safety Read Before Lighting Lighting InstructionsThermostat Control Operation Manual Lighting ProcedureTo Turn OFF GAS To Appliance Shutting Off FireplaceREMOTE-READY Models For Your Safety Read Before Lighting AUTO/OFF/ON SwitchOperating Blower Piezo Flame Control Ignitor Adjustment Knob Button Pilot Ignitor Burner ElectrodePilot Burner Ignitor Electrode Thermostat Series Model HRC200 Manual ModeOptional HAND-HELD Remote Operation ON/OFF Series Model HRC100Optional GWMS2 Wall Mounted Switch Optional GWMT1 Wall Mounted ThermostatCleaning Maintenance Inspecting BurnersAir Passageways LOG SETCabinet ExteriorTroubleshooting Observed Problem Possible Cause RemedyMote-Ready Models Only Burner orifice is clogged Clean burner see CleaningBurner orifice is clogged Models OnlySlight smoke or odor during When heated, vapors fromMote-Ready Models Only Power is low Nance,Gas leak. See Warning Specifications Thermostat ModelsRemote-Ready Models Illustrated Parts Breakdown Firebox Models VDCParts List Thermostat Models Vdcftpb and Vdcftnb Thermostat Models REMOTE-READY Models Vdcfrnb and Vdcfrpb KEY Part Numbers Vdcfrpb Vdcfrnb Description QTY Perimeter Trim KIT GA6095 AccessoriesEquipment Shutoff Valve GA5010 THERMOSTAT-CONTROLLED Blower KIT GA3450TReceiver and HAND-HELD Remote Control KIT HRC100 Series Information VideoFor all models. Creates the sound of a real burn- ing fire Technical Service Replacement PartsService Hints Parts Under Warranty116526-01A Warranty Information Keep this WarrantyLimited Warranty VENT-FREE Compact Classic Hearth