Desa GMP26T, GMP20BT, GMP16T, GMP30BT installation manual Pressed

Page 21

TROUBLESHOOTING

Continued

OBSERVED PROBLEM

POSSIBLE CAUSE

REMEDY

 

 

 

 

ODS/pilot lights but flame goes

1. Control knob not fully

1.

Press in control knob fully

out when control knob is released

 

pressed in

 

 

 

2.

Control knob not pressed in

2.

After ODS/pilot lights, keep con-

 

 

long enough

 

trol knob pressed in 30 seconds

 

3.

Safety interlock system has

3.

Wait one minute for safety in-

 

 

been triggered

 

terlock system to reset. Repeat

 

 

 

 

ignition operation

 

4.

Equipment shutoff valve not

4.

Fully open equipment shutoff

 

 

fully open

 

valve

 

5.

Thermocouple connection

5.

Hand tighten until snug, then

 

 

loose at control valve

 

tighten 1/4 turn more

 

6.

Pilot flame not touching ther-

6.

A) Contact local propane/LP

 

 

mocouple, which allows

 

gas company

 

 

thermocouple to cool, caus-

 

 

 

 

ing pilot flame to go out. This

 

B) Clean ODS/pilot (see

 

 

problem could be caused by

 

Cleaning and Maintenance,

 

 

one or both of the following:

 

page 19) or replace ODS/pilot

 

 

A) Low gas pressure

 

assembly

 

 

B) Dirty or partially clogged

 

 

 

 

ODS/pilot

 

 

 

7.

Thermocouple damaged

7.

Replace pilot assembly

 

8.

Control valve damaged

8.

Replace control valve

 

 

 

 

Burner does not light after ODS/

1. Burner orifice is clogged

1.

Clean burner (see Cleaning

pilot is lit

 

 

 

and Maintenance, page 19) or

 

 

 

 

replace burner orifice

 

2.

Inlet gas pressure is too low

2.

Contact local propane/LP gas

 

 

 

 

company

 

 

 

 

Delayed ignition of burner

1. Manifold pressure is too low

1.

Contact local propane/LP gas

 

 

 

 

company

 

2.

Burner orifice is clogged

2.

Clean burner (see Cleaning

 

 

 

 

and Maintenance, page 19) or

 

 

 

 

replace burner orifice

 

 

 

 

Burner backfiring during com-

1. Burner orifice is clogged or

1.

Clean burner (see Cleaning

bustion

 

damaged

 

and Maintenance, page 19) or

 

 

 

 

replace burner orifice

 

2.

Burner damaged

2.

Replace burner

 

3.

Gas regulator defective

3.

Replace gas regulator

113048-01C

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Contents What to do if YOU Smell GAS Table of Contents Safety Information Local Codes Safety Information Product IdentificationProviding Adequate Ventilation AIR for Combustion VentilationUnusually Tight Construction Confined and Unconfined SpaceDetermining if You Have a Confined or Unconfined Space Determining FRESH-AIR Flow for Heater LocationVentilation AIR InstallationCheck GAS Type Ventilation Air From Inside BuildingLocating Heater Installation ItemsInstalling Heater to Wall 20,000 Btu/Hr Models Attaching To Wall Anchor MethodPlacing Heater On Mounting Bracket Mounting Base Feet to Floor Where required by local code Installing Bottom Mounting ScrewsMounting Heater to Floor with Optional Floor KIT Mounting Base Feet to HeaterTypical Inlet Pipe Diameters Connecting to GAS SupplyChecking GAS Connections Pressure Testing GAS Supply Piping SystemTest Pressures In Excess Of 1/2 Psig 3.5 kPa Test Pressures Equal To or Less Than 1/2 Psig 3.5 kPaPressure Testing Heater GAS Connections For Your Safety Read Before LightingOperating Heater Manual Control Models Lighting InstructionsManual Lighting Procedure To Select Heating Level for Infrared HeatersTo Turn OFF GAS To Appliance Thermostat Controlled Models Lighting Instructions Thermostat Control Operation Inspecting HeaterPilot Flame Pattern Control Knob GMP16TInpecting Heater Burner Flame Pattern for Blue Flame HeatersBurner Flame Pattern for Infrared Heaters ODS/PILOT and Burner Cleaning MaintenanceBurner Pilot AIR Inlet CabinetObserved Problem Possible Cause Remedy TroubleshootingPressed See Cleaning and Mainte Statement above Gas leak. See WarningSpecifications GMP30BT GMP20BTGMP16 GMP26 GMP16T GMP26T Technical Service Service HintsService Publications Replacement Parts AccessoriesModels GMP16, GMP26, GMP16T, and GMP26T Illustrated Parts BreakdownParts AVAILABLE-NOT Shown Parts ListModels GMP16 and GMP26 Illustrated Parts Breakdown and Parts ListModels GMP16T and GMP26T ODS/Pilot Burner Assembly GMP16TModels GMP20BT and GMP30BT Parts Available not Shown Warranty Information Keep this WarrantyLimited Warranty VENT-FREE Residential GAS Heaters