TROUBLESHOOTING

WARNING WARNING

Turn appliance OFF and allow to cool before servicing. Only a qualified service person should service and repair the heater.

Note: All troubleshooting items are listed in order of operation.

OBSERVED PROBLEM

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.

1Replace 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 unwanted

1.

Appliance burning vapors from paint, hair

odors.

 

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 6 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 ventila- tion.

2.Contact local gas company.

3.Clean ODS/pilot.

4.Check pilot flame, check wire connec- tions, check output, should be 325 milli- volts 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

1.

Gas leak.

1.

Locate and correct all leaks.

knob is in OFF position.

2.

Control valve defective.

2.

Replace control valve.

 

 

 

 

 

When ignitor button is pressed,

1.

Gas supply turned off or manual shutoff valve

1.

Turn on gas supply or open manual

there is spark at ODS pilot, but

 

closed.

 

shutoff valve.

no ignition.

2.

Control knob not in PILOT position.

2.

Turn control knob to PILOT position.

 

3.

Control knob not pressed in while in PILOT

3.

Press in control knob while in PILOT

 

 

position.

 

position.

 

4.

Air in gas lines when installed.

4.

Continue holding down control knob.

 

 

 

 

Repeat igniting operation until air is

 

 

 

 

removed.

 

5.

ODS/pilot is clogged.

5.

Replace ODS/pilot assembly or get it

 

 

 

 

serviced.

 

6.

Gas regulator setting is not correct.

6.

Replace gas regulator.

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Monessen Hearth DFS36NVC, DFS42NVC, DFS32NVC, DFS32PVC, DFS42PVC manual Troubleshooting, Observed Problem Possible Cause Remedy