Troubleshooting
WARNING:Turnoffandunplugheaterandletcoolbeforeservicing. 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 | |||
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When ignitor button is pressed | 1. Ignitor electrode positioned | 1. | Replace pilot assembly | ||
in, there is no spark at ODS/ |
| wrong | 2. | Replace pilot assembly | |
pilot | 2. Ignitor electrode broken | ||||
| 3. | Ignitor electrode not con- | 3. | Reconnect ignitor cable | |
| 4. | nected to ignitor cable | 4. | Free ignitor cable if pinched | |
| Ignitor cable pinched or wet | ||||
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| by any metal or tubing. Keep | |
| 5. | Broken ignitor cable | 5. | ignitor cable dry | |
| Replace ignitor cable | ||||
| 6. | Bad piezo ignitor | 6. | Replace piezo | |
| 7. | Piezo ignitor nut is loose | 7. | Tighten nut holding piezo | |
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| (piezo ignition models only) |
| ignitor. Nut is located inside | |
| 8. | Battery not installed, battery | 8. | heater cabinet at top | |
| Install new alkaline battery | ||||
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| power low or battery not |
| in electronic ignitor. Verify | |
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| installed correctly (electronic |
| battery is installed correctly | |
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| ignition models only) |
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When ignitor button is pressed | 1. Gas supply turned off or equip- | 1. | Turn on gas supply or open | ||
in, there is a spark at ODS/Pilot |
| ment shutoff valve closed | 2. | equipment shutoff valve | |
but no ignition | 2. Thermostat control knob not | Turn to PILOT/IGN posi- | |||
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| fully pressed in while pressing |
| tion. Fully press in thermostat | |
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| ignitor button |
| control knob while pressing | |
| 3. | Air in gas lines when in- | 3. | ignitor button | |
| Continue holding down con- | ||||
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| stalled |
| trol knob. Repeat igniting op- | |
| 4. | Depleted gas supply (propane/ | 4. | eration until air is removed | |
| Contact local propane/LP gas | ||||
| 5. | LP gas) | 5. | company | |
| ODS/pilot is clogged | Clean ODS/pilot (see Cleaning | |||
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| and Maintenance, page 15) or | |
| 6. | Gas regulator setting is not | 6. | replace ODS/pilot assembly | |
| Replace gas regulator | ||||
| 7. | correct | 7. | Turn thermostat control knob | |
| Thermostat control knob is not | ||||
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| in pilot position |
| to pilot position | |
16 | www.desatech.com |
