Monessen Hearth VFCS20DNV - Manual (Page 29)

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Note: All troubleshooting items are listed in order of operation.
TROUBLESHOOTING
W
ARNING
W
ARNING
Turn appliance OFF and allow to cool
before servicing. Only a qualified
service person should service and
repair the heater.
SYMPTOM POSSIBLE CAUSE ACTION
When ignitor
button is
pressed,
there is no
spark at
ODS/pilot. 1. Ignitor electrode positioned
wrong.
1 Replace ignitor.
2. Ignitor electrode is broken. 2. Replace ignitor.
3. Ignitor electrode not con-
nected to ignitor cable.
3. Reconnect ignitor cable.
4. Ignitor cable pinched or wet.
Keep ignitor cable dry.
4. Free ignitor cable if pinched by any metal or tubing.
5. Broken ignitor cable. 5. Replace ignitor cable.
6. Bad piezo ignitor. 6. Replace piezo ignitor.
Appliance
produces
unwanted
odors. 1. Appliance burning vapors
from paint, hair spray, glues,
etc.
1. Ventilate room. Stop using odor causing products while heater is run-
ning.
2. Gas leak 2. Locate and correct all leaks.
3. Initial burn off. 3. Ventilate room and turn unit on high until odor is gone. Odor should
be gone after 2 to 3 hours of continuous use.
Appliance
shuts off
during use. 1. Not enough fresh air is avail-
able for ODS/ pilot to oper-
ate.
1. Open window and/or door for ventilation.
2. Low line pressure. 2. Contact local gas company.
3. O D S / p i l o t i s p a r t i a l l y
clogged.
3. Clean ODS/pilot.
4. Defective Thermopile. 4. Check pilot flame. Check wire connections. Check thermopile output
— should be 500 millivolts across TH/TP and TP Terminals with ON/OFF
switch off.
5. Restrictions in incoming air
flow.
5. Check for obstructions on bottom of unit. Check for improper log place-
ment.
Gas odor
even when
control knob
is in OFF
position. 1. Gas leak. 1. Locate and correct all leaks.
2. Control valve defective. 2. Replace control valve.