Troubleshooting - Comfort Glow GCH480 Manual De Instrucciones

Problem
When ignitor is depressed there is no spark
at ODS pilot.
When control knob is pressed in and turned
counterclockwise to pilot and piezo is
depressed, pilot does not light.
ODS pilot lights but flame goes out when
control knob is released.
Burner does not light after ODS pilot is lit.
Delayed ignition.
Burner backfiring during operation.
Yellow flames during burner operation.
Burner plaque(s) does not glow.
Slight smoke and odor during
Initial operation.
Heater produces a whistling noise
when burner is lit.
Heater produces a clicking noise just after
burner is lit or turned off.
13
PROPANE CONSTRUCTION HEATER

TROUBLESHOOTING

Possible Cause
1. Ignitor electrode positioned wrong.
2. Ignitor electrode broken.
3. Ignitor cable pinched or broken.
4. Ignitor cable not connected to ignitor
electrode.
5. Ignitor defective.
1. Gas supply turned off.
2. Control knob not in pilot position.
3. Control knob not pressed in while in pilot
position.
4. ODS pilot is clogged.
5. Air in gas lines.
1.Control knob not pressed long enough.
2. Safety interlock is triggered.
3. Pilot flame not touching the
thermocouple.
Problem could be result of one or both of
the following:
• Partially clogged ODS pilot orifice.
• Low gas pressure.
4. Thermocouple damaged.
5. Thermocouple connection loose at gas
control valve.
6. Gas control valve damaged.
1. Burner orifice clogged.
2. Gas supply pressure is very low.
1. Main burner carry over ports clogged.
2. Gas supply pressure is very low.
1. Burner orifice is clogged.
2. Burner ports damaged.
1. Not enough air.
1. Plaque(s) is damaged.
2. Inlet gas pressure too low.
3. Control knob set between locked
positions.
1. Residues from manufacturing processes.
1. Air passageways blocked.
2. Air in gas line.
1. Metal expanding and contracting.
What To Do
1. Reposition ignitor electrode.
2. Replace electrode.
3. Free ignitor cable, if damaged, replace.
4. Connect cable to electrode.
5. Replace ignitor.
1. Turn gas supply on.
2. Turn control knob to pilot position.
3. Press in control while in pilot position.
4. Call a qualified service technician.
5. Purge gas lines and repeat ignition
operation.
1. After ODS pilot lights, keep control knob
pressed in approximately 30 seconds.
2. Wait one minute, repeat ignition
operation.
3. Contact your gas company, gas supplier
or qualified service technician.
4. Replace thermocouple.
5. Hand tight until snug then tighten
1/4 turn with a wrench.
6. Replace gas control.
1. Clean burner orifice.
2. Contact gas supplier.
1. Clean main burner ports.
2. Contact gas supplier.
1. Clean burner orifice.
2. Replace burner.
1. Check air passageways and burner for
dirt and debris.
(Refer to Maintenance section)
1. Replace burner.
2. Contact local gas supplier.
3. Turn control knob until it locks at
desired setting.
1. Will stop after a few hours of operation.
1. Check minimum installation clearances
and air passageways for debris.
2. Operate burner until the air is completely
purged.
1. This is common with heaters.
If noise is excessive, contact a
qualified, service technician.