TROUBLESHOOTING
Note: All troubleshooting items are listed in order of operation.
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.
OBSERVED PROBLEM | POSSIBLE CAUSE |
| REMEDY | |||
When ignitor button is pressed, | 1. Ignitor cable pinched or wet | 1. | Free ignitor cable if pinched | |||
there is no spark at ODS/pilot |
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| by any metal or tubing. Keep |
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| ignitor cable dry |
| 2. | Ignitor electrode not con- | 2. | Reconnect ignitor cable | ||
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| nected to ignitor cable |
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| 3. | Broken ignitor cable |
| 3. | Replace ignitor cable | |
| 4. | Bad piezo ignitor |
| 4. | Replace piezo ignitor | |
| 5. | Ignitor electrode broken | 5. | Replace pilot assembly | ||
| 6. | Ignitor electrode positioned | 6. | Replace pilot assembly | ||
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| wrong |
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When ignitor button is pressed, | 1. Gas supply | turned | off or | 1. | Turn on gas supply or open | |
there is spark at ODS/pilot but |
| equipment | shutoff | valve |
| equipment shutoff valve |
no ignition |
| closed |
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| 2. | Control knob not in PILOT | 2. | Turn control knob to PILOT | ||
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| position |
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| position |
| 3. | Control knob not pressed in | 3. | Press in control knob while in | ||
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| while in PILOT position |
| PILOT position | ||
| 4. | Air in gas lines when installed | 4. | Continue holding down con- | ||
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| trol knob. Repeat igniting op- |
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| eration until air is removed |
| 5. | Depleted gas supply (propane/ | 5. | Contact local propane/LP gas | ||
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| LP only) |
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| company |
| 6. | ODS/pilot is clogged |
| 6. | Clean ODS/pilot (see Clean- | |
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| ing and Maintenance, page |
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| 22) or replace ODS/pilot as- |
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| sembly |
| 7. | Gas regulator setting is not | 7. | Replace gas regulator | ||
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| correct |
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www.desatech.com | 23 |