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

 

long enough

 

trol knob pressed in 30 seconds

 

3.

Equipment shutoff valve not

3.

Fully open equipment shutoff

 

 

fully open

 

valve

 

4.

Thermocouple connection

4.

Hand tighten until snug, then

 

 

loose at control valve

 

tighten 1/4 turn more

 

5.

Pilot flame not touching ther-

5.

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

 

Cleaning and Maintenance,

 

 

problem could be caused by

 

page 16) or replace ODS/pilot

 

 

one or both of the following:

 

assembly

 

 

A) Low gas pressure

 

 

 

 

B) Dirty or partially clogged

 

 

 

 

ODS/pilot

 

 

 

6.

Thermocouple damaged

6.

Replace pilot assembly

 

7.

Control valve damaged

7.

Replace control valve

 

8.

Safety interlock system has

8.

Wait one minute for safety in-

 

 

been triggered

 

terlock system to reset. Repeat

 

 

 

 

ignition operation

 

 

 

 

Burner(s) does not light after

1. Burner orifice(s) is clogged

1.

Cleanburnerorifice(s)(seeClean-

ODS/pilot is lit

 

 

 

ing and Maintenance, page 16)

 

 

 

 

or replace burner orifice(s)

 

2.

Inlet gas pressure is too low

2.

Contact local natural or pro-

 

 

 

 

pane/LP gas company

 

 

 

 

Delayed ignition of burner(s)

1. Manifold pressure is too low

1.

Contact local natural or pro-

 

 

 

 

pane/LP gas company

 

2.

Burner orifice(s) is clogged

2.

Cleanburnerorifice(s)(seeClean-

 

 

 

 

ing and Maintenance, page 16)

 

 

 

 

or replace burner orifice(s)

 

 

 

 

Burner backfiring during com-

1. Burner orifice(s) is clogged or

1.

Cleanburnerorifice(s)(seeClean-

bustion

 

damaged

 

ing and Maintenance, page 16)

 

2.

Burner damaged

 

or replace burner orifice(s)

 

2.

Replace burner

 

3.

Gas regulator defective

3.

Replace gas regulator

107882-01M

www.desatech.com

19

Page 19
Image 19
Desa CBT30NT, CBT30PT ODS/pilot lights but flame, Press in control knob fully, Released Long enough, Assembly

CBT30NT, CBT30PT specifications

The Desa CBT30NT and CBT30PT are high-performance heating solutions designed to deliver efficient warmth for both residential and commercial applications. These units are known for their reliability, innovative features, and easy integration into various spaces. They are particularly suited for those seeking effective heating options without compromising on energy efficiency.

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