TROUBLESHOOTING

Continued

OBSERVED PROBLEM

POSSIBLE CAUSE

REMEDY

 

 

 

 

 

 

 

ODS/pilot lights but flame goes

1. Control knob not fully pressed

1.

Press in control knob fully

out when control knob is re-

 

in

2.

After ODS/pilot lights, keep

leased

2. Control knob not pressed in

 

 

long enough

 

control knob pressed in 30

 

3.

Safety interlock system has been

3.

seconds

 

 

 

Wait one minute for safety in-

 

 

triggered

 

terlock system to reset. Repeat

 

4.

Equipment shutoff valve not

4.

ignition operation

 

 

 

Fully open equipment shutoff

 

5.

fully open

5.

valve

 

 

 

Thermocouple connection

Hand tighten until snug, then

 

6.

loose at control valve

6.

tighten 1/4 turn more

 

Pilot flame not touching ther-

A) Contact local propane/LP or

 

 

mocouple, which allows ther-

 

natural 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 20) or replace ODS/pilot

 

 

A) Low gas pressure

 

assembly

 

 

 

 

B) Dirty or partially clogged

 

 

 

 

 

7.

ODS/pilot

7.

Replace pilot assembly

 

Thermocouple damaged

 

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 20)

 

2.

Inlet gas pressure is too low

2.

or replace burner orifice

 

Contact local propane/LP or

 

 

 

 

natural gas company

 

 

 

 

 

Delayed ignition of burner

1. Manifold pressure is too low

1.

Contact local propane/LP or

 

2.

Burner orifice is clogged

2.

natural gas company

 

Clean burner (see

Cleaning

 

 

 

 

and Maintenance,

page 20)

 

 

 

 

or replace burner orifice

 

 

 

 

 

Burner backfiring during com-

1. Burner orifice is clogged or

1.

Clean burner (see Cleaning

bustion

 

damaged

 

and Maintenance,

page 20)

 

2.

Burner damaged

2.

or replace burner orifice

 

Replace burner pressure

 

3.

Low inlet gas pressure

3.

Contact local propane/LP or

 

4.

Gas regulator defective

4.

natural gas company

 

Replace gas regulator

119508-01A

www.desatech.com

23

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Desa LGCFTN, LGCFTP installation manual Troubleshooting, Maintenance

LGCFTN, LGCFTP specifications

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