4. ODS/pilot is clogged.

TROUBLESHOOTING

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

WARNING: Only a qualified service person should service and repair heater.

CAUTION: Never use a wire, needle, or similar object to clean ODS/pilot. This can damage ODS/pilot unit.

OBSERVED PROBLEM

POSSIBLE CAUSE

REMEDY

 

 

 

When ignitor button is pressed and control knob is pressed in and turned to the PILOT position, there is no spark at ODS/pilot.

1.Ignitor electrode is positioned wrong.

2.Ignitor electrode is broken.

3.Ignitor electrode is not connected to ignitor cable.

4.Ignitor cable is pinched or wet.

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. Keep ignitor cable dry.

5.Replace ignitor cable.

6.Replace piezo ignitor.

When ignitor button is pressed and control knob is press in and turned to the PILOT position, there is a spark at ODS/pilot but no ignition.

1 . Gas supply

turned off or 1.

Turn on gas supply or open

equipment shutoff valve is closed.

equipment shutoff

valve.

2. Control knob not fully pressed in 2.

Fully

press

in

control knob

while pressing

ignitor button

while

pressing

ignitor button.

3.Air in gas lines when installed. 3. Continue holding down control knob. Repeat igniting operation until air is removed.

4. Clean ODS/pilot (see Cleaning and Maintenamce, Page 13) or replace ODS/pilot assembly.

5.Control knob not in PILOT position. 5. Turn control knob to PILOT position.

6.Gas regulator setting is not correct. 6. Replace gas regulator.

7. Depleted gas supply.

7. Contact local prapane/LP gas

 

company.

ODS/pilot lights but flame goes out 1.

Control knob is not fully pressed

1.

Press in control knob fully.

when control knob is released.

in.

 

 

 

 

2.

Control knob is not pressed in

2.

After ODS/pilot lights, keep control

 

long enough.

 

 

knob pressed in 30 seconds. .

3.

Equipment shutoff valve is not fully

3.

Fully open equipment shutoff valve

 

open.

 

 

 

 

4.

Thermocouple

connection loose

4.

Hand tighten until snug, then

 

at control valve.

 

tighten 1/4

turn more.

5.

Thermocouple

damaged.

5.

Replace

thermocouple.

6.

Control valve

damaged.

6.

Replace control valve.

1 4

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Procom ML100TPA, ML060HPA, ML100HPA installation manual Troubleshooting, Observed Problem Possible Cause Remedy

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