TROUBLESHOOTING

WARNING: Turn off heater and let cool before servicing. 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.

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

OBSERVED PROBLEM

POSSIBLE CAUSE

REMEDY

 

 

 

 

 

When ignitor button is pressed,

1. Ignitor electrode positioned

1.

Replace pilot assembly

there is no spark at ODS/pilot

 

wrong

2.

Replace pilot assembly

 

2.

Ignitor electrode broken

 

3.

Ignitor electrode not con-

3.

Reconnect ignitor cable

 

 

nected to ignitor cable

4.

Free ignitor cable if pinched

 

4.

Ignitor cable pinched or wet

 

 

 

 

by any metal or tubing. Keep

 

 

 

 

ignitor cable dry

 

5.

Piezo ignitor nut is loose

5.

Tighten nut holding piezo ig-

 

 

 

 

nitor to heater cabinet. Nut is

 

 

 

 

located inside heater cabinet

 

 

 

 

at top

 

6.

Broken ignitor cable

6.

Replace ignitor cable

 

7.

Bad piezo ignitor

7.

Replace piezo ignitor

When ignitor button is pressed, there is spark at ODS/pilot but no ignition

1.Gas supply turned off or equipment 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 in- stalled

5.ODS/pilot is clogged

1.Turn on gas supply or open equipment shutoff valve

2.Turn control knob to PILOT position

3.Press in control knob while in PILOT position

4.Continue holding down con- trol knob. Repeat igniting op- eration until air is removed

5.Clean ODS/pilot (see Clean- ing and Maintenance, page

8)or replace ODS/pilot as- sembly

10

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Desa PORTABLE PROPANE/LP HEATER installation manual Troubleshooting, Observed Problem Possible Cause Remedy

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