Monessen Hearth MHSC EYF24 - Manual (Page 30)

30 65D1009
Note: All troubleshooting items are listed in order of operation.
WARNING
TROUBLESHOOTING
Turn appliance OFF and allow to cool
before servicing. Only a qualified
service person should service and
repair the heater.
WARNING
OBSERVED PROB- POSSIBLE CAUSE REMEDY
When ignitor button is
pressed, there is no spark
at ODS/pilot. 1. Ignitor electrode positioned wrong.
2. Ignitor electrode is broken.
3. Ignitor electrode not connected to ignitor
cable.
4. Ignitor cable pinched or wet. Keep ignitor cable
dry.
5. Broken ignitor cable.
6. Bad piezo ignitor.
1 Replace ignitor.
2. Replace ignitor.
3. Reconnect ignitor cable.
4. Free ignitor cable if pinched by any metal or
tubing.
5. Replace ignitor cable.
6. Replace piezo ignitor.
Appliance produces un-
wanted odors. 1. Appliance burning vapors from paint, hair
spray, glues, etc.
2. Gas leak.
3. Initial burn off.
1. Ventilate room. Stop using odor causing
products while heater is running.
2. Locate and correct all leaks.
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 available for ODS/ pilot
to operate.
2. Low line pressure.
3. ODS/pilot is partially clogged.
4. Defective Thermopile.
5. Restrictions in incoming air flow.
1. Open window and/or door for ventilation.
2. Contact local gas company.
3. Clean ODS/pilot.
4. Check pilot flame, check wire connections,
check output, should be 325 millivolts across
TH/TP and TP Terminals with ON/OFF
switches off.
5. Check for bottom riser on glass door, sunken
fireplace, excessive lava rock/cinders densely
packed against grate.
Gas odor even when control
knob is in OFF position. 1. Gas leak.
2. Control valve defective. 1. Locate and correct all leaks.
2. Replace control valve.
When ignitor button is
pressed, there is spark at
ODS pilot, but no ignition. 1. Gas supply turned off or manual shutoff valve
closed.
2. Control knob not in PILOT position.
3. Control knob not pressed in while in PILOT
position.
4. Air in gas lines when installed.
5. ODS/pilot is clogged.
6. Gas regulator setting is not correct.
1. Turn on gas supply or open manual shutoff
valve.
2. Turn control knob to PILOT position.
3. Press in control knob while in PILOT posi-
tion.
4. Continue holding down control knob. Repeat
igniting operation until air is removed.
5. Replace ODS/pilot assembly or get it ser-
viced.
6. Replace gas regulator