OWNER’S MANUAL

TROUBLESHOOTING

Continued

 

OBSERVED PROBLEM

POSSIBLE CAUSE

REMEDY

 

Heater produces a whistling noise when

1.

Turning control knob to HI position

1.

Turn control knob to LO position and

 

burner is lit

 

when burner is cold

 

let warm up for a minute

 

 

2.

Air in gas line

2.

Operate burner until air is removed from

 

 

 

 

 

line. Have gas line checked by local

 

 

 

 

 

natural gas company

 

 

3.

Air passageways on heater blocked

3.

Observe minimum installation clear-

 

 

 

 

 

ances (see pages 8 through 10)

 

 

4.

Dirty or partially clogged burner orifice

4.

Clean burner (see Cleaning and Mainte-

 

 

 

 

 

nance, page 23) or replace burner orifice

 

 

 

 

 

 

 

When ignitor button is pressed, there is no

1.

Ignitor electrode not connected to igni-

1.

Reconnect ignitor cable

 

spark at ODS/pilot (manual ignition mode)

 

tor cable

 

 

 

 

 

2.

Ignitor cable pinched or wet

2.

Free ignitor cable if pinched by any

 

 

 

 

 

metal or tubing. Keep ignitor cable dry

 

 

3.

Piezo ignitor nut is loose

3.

Tighten nut holding piezo ignitor to base

 

 

 

 

 

panel of log set. Nut is located behind

 

 

 

 

 

base panel

 

 

4.

Broken ignitor cable

4.

Replace ignitor cable

 

 

5.

Bad piezo ignitor

5.

Replace piezo ignitor

 

 

6.

Ignitor electrode broken

6.

Replace piezo ignitor

 

 

7.

Ignitor electrode positioned wrong

7.

Replace piezo ignitor and bracket

 

 

 

 

 

 

 

 

When ignitor button is pressed, there is

1.

Gas supply turned off or equipment

1.

Turn on gas supply or open equipment

 

spark at ODS/pilot but no ignition (manual

 

shutoff valve closed

 

shutoff valve

 

ignition mode)

2.

Control knob not in PILOT position

2.

Turn control knob to PILOT position full

 

 

 

 

 

counterclockwise

 

 

3.

Air in gas lines when installed

3.

Continue holding control knob in full

 

 

 

 

 

counterclockwise position. Repeat

 

 

 

 

 

igniting operation until air is removed

 

 

4.

ODS/pilot is clogged

4.

Clean ODS/pilot (see Cleaning and

 

 

 

 

 

Maintenance, page 23) or replace ODS/

 

 

 

 

 

pilot assembly

 

 

5.

Gas regulator setting is not correct

5.

Replace gas regulator

 

 

 

 

 

 

 

 

ODS/pilot lights but flame goes out when

1.

Control knob not fully turned counter-

1.

Turn control knob fully counterclock-

 

control knob is released (manual ignition

 

clockwise

 

wise

 

mode)

2.

Control knob not held long enough

2.

After ODS/pilot lights, hold control

 

 

 

 

 

knob for 30 seconds

 

 

3.

Equipment shutoff valve not fully open

3.

Fully open equipment shutoff valve

 

 

4.

Pilot flame not touching thermocouple,

4.

A) Contact local natural gas company

 

 

 

which allows thermocouple to cool,

 

 

 

 

 

 

causing pilot flame to go out. This prob-

 

B) Clean ODS/pilot (see Cleaning and

 

 

 

lem could be caused by one or both of

 

Maintenance, page 23xx) or replace

 

 

 

the following:

 

ODS/pilot assembly

 

 

 

A) Low gas pressure

 

 

 

 

 

 

B) Dirty or partially clogged OD S/pilot

 

 

 

 

 

5.

Thermocouple connection loose at con-

5.

Hand tighten until snug, then tighten

 

 

 

trol valve

 

1/4 turn more

 

 

6.

Thermocouple damaged

6.

Replace pilot assembly

 

 

7.

Control valve damaged

7.

Replace control valve

 

B

 

www.desatech.com

 

Continued

 

 

 

 

 

 

 

107569

25

For more information, visit www.desatech.com

Page 25
Image 25
Desa CGEFP33NR installation manual Observed Problem Possible Cause Remedy

CGEFP33NR specifications

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