Troubleshooting

Continued

OBSERVED PROBLEM

POSSIBLE CAUSE

REMEDY

ODS/pilot lights but flame

1. Control knob not fully pressed in

1.

Press in control knob fully

 

goes out when control knob is

2. Control knob not pressed in

2.

After ODS/pilot lights, keep con-

released

3.

long enough

3.

trol knob pressed in 30 seconds

 

 

Equipment shutoff valve not

Fully open equipment shutoff

 

 

4.

fully open

4.

valve

 

 

Pilot flame not touching ther-

A) Contact local natural or

 

 

 

mocouple, which allows ther-

 

propane/LP gas company

 

 

 

mocouple to cool, causing

 

B) Clean ODS/pilot (see

 

 

 

pilot flame to go out. This

 

 

 

 

problem could be caused by

 

Cleaning and Maintenance,

 

 

 

one or both of the following:

 

page 23) or replace ODS/pilot

 

 

 

A) Low gas pressure

 

assembly

 

 

 

B) Dirty or partially clogged

 

 

 

 

 

5.

ODS/pilot

5.

Hand tighten until snug, then

 

 

Thermocouple connection

 

 

6.

loose at control valve

6.

tighten 1/4 turn more

 

 

Thermocouple damaged

Replace pilot assembly

 

 

7.

Control valve damaged

7.

Replace control valve

 

 

 

 

 

 

Burner does not light after

1. Burner orifice clogged

1.

Clean burner (see Cleaning

ODS/pilot is lit

 

 

 

and Maintenance, page 23)

 

 

2.

Inlet gas pressure is too low

2.

or replace burner orifice

 

 

Contact local natural gas

 

 

3.

Thermopile leads disconnected

3.

company

 

 

Reconnect leads (see Wiring

 

 

4.

or improperly connected

4.

Diagrams, page 24)

 

 

Burners will not come on in

Replace battery in transmitter

 

 

 

remote position

 

and receiver

 

 

 

 

 

 

Delayed ignition burner

1. Manifold pressure is too low

1.

Contact local natural or pro-

 

 

2.

Burner orifice clogged

2.

pane/LP gas company

 

 

Clean burner (see Cleaning

 

 

 

 

 

and Maintenance, page 23)

 

 

 

 

 

or replace burner orifice

 

 

 

 

 

 

Burner backfiring during com-

1. Burner orifice is clogged or

1.

Clean burner (see Cleaning

bustion

 

damaged

 

and Maintenance, page 23)

 

 

2.

Damaged burner

2.

or replace burner orifice

 

 

Replace damaged burner

 

 

3.

Gas regulator defective

3.

Replace gas control

26

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Page 26
Image 26
Desa GS38 installation manual Maintenance

GS38 specifications

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