14

TROUBLESHOOTING

TROUBLESHOOTING

Continued

OBSERVED PROBLEM

POSSIBLE CAUSE

REMEDY

When ignitor button is pressed, there is no

1.

Ignitor electrode not connected to igni-

1.

Reconnect ignitor cable

spark at pilot

 

tor cable

 

 

 

2.

Ignitor cable pinched or wet

2.

Free ignitor cable if pinched by any

 

 

 

 

metal or tubing. Keep ignitor cable dry

 

3.

Bad ground on piezo ignitor

3.

Scrape away paint on bracket for better

 

 

 

 

contact with ground on piezo ignitor

 

4.

Broken ignitor cable

4.

Replace ignitor cable

 

5.

Bad piezo ignitor

5.

Replace piezo ignitor

 

6.

Ignitor electrode broken

6.

Replace electrode

 

7.

Ignitor electrode positioned wrong

7.

Reposition electrode

 

 

 

 

 

When ignitor button is pressed, there is

1.

Gas supply turned off or equipment

1.

Turn on gas supply or open equipment

spark at pilot but no ignition

 

shutoff valve closed

 

shutoff valve

 

2.

Control knob not in PILOT position

2.

Turn control knob to PILOT position

 

3.

Control knob not pressed in while in

3.

Press in control knob while in PILOT

 

 

PILOT position

 

position

 

4.

Air in gas lines when installed

4.

Continue holding down control knob.

 

 

 

 

Repeat igniting operation until air is re-

 

 

 

 

moved

 

5.

Pilot adjustment screw closed

5.

Adjust pilot flame for approximately

 

 

 

 

2" blue flame

 

6.

Pilot is clogged

6.

Clean pilot (see Cleaning and Mainte-

 

 

 

 

nance, page 12) or replace pilot assembly

 

7.

Low gas pressure

7.

Replace gas control

 

 

 

 

 

Pilot lights but flame goes out when control

1.

Control knob not fully pressed in

1.

Press in control knob fully

knob is released

2.

Control knob not pressed in long enough

2.

After pilot lights, keep control knob

 

 

 

 

pressed in 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 pilot (see Cleaning and Mainte-

 

 

lem could be caused by one or both of

 

nance, page 12) or replace pilot assembly

 

 

the following:

 

 

 

 

A) Low gas pressure

 

 

 

 

B) Dirty or partially clogged 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 thermocouple

 

7.

Control valve damaged

7.

Replace control valve

 

 

 

 

 

Burner does not light after pilot is lit

1.

Burner orifice clogged

1.

Clean burner orifice

 

2.

Inlet gas pressure is too low

2.

Contact local natural or propane/LP gas

 

 

 

 

company

 

3.

Burner orifice diameter is too small

3.

Replace burner orifice

 

4.

Thermocouple leads disconnected or im-

4.

Reconnect leads

 

 

properly connected

 

 

 

 

 

 

 

Delayed ignition burner

1.

Pilot flame needs adjusting

1.

Adjust pilot flame for approximately

 

 

 

 

2" blue flame

 

2.

Wrong pilot orifice

2.

Replace pilot orifice set

For more

 

visit www.

 

.com

901273-01D

Page 14
Image 14
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