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 | ||
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When ignitor button is | 1. Ignitor electrode positioned | 1. | Replace pilot assembly | |
pressed, there is no spark at |
| wrong |
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|
ODS/pilot | 2. Ignitor electrode broken | 2. | Replace pilot assembly | |
| 3. | Ignitor electrode not con- | 3. | Reconnect ignitor cable |
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| nected to ignitor cable |
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| 4. | Ignitor cable pinched or | 4. | Free ignitor cable if pinched |
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| wet |
| by any metal or tubing. |
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|
| Keep ignitor cable dry |
| 5. | Piezo ignitor nut is loose | 5. | Tighten nut holding piezo |
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| ignitor to heater cabinet. |
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| Nut is located inside heater |
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| cabinet at top |
| 6. | Broken ignitor cable | 6. | Replace ignitor cable |
| 7. | Bad piezo ignitor | 7. | Replace piezo ignitor |
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| |
Whenignitorbuttonispressed, | 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 |
|
|
| 2. | Control knob not in PILOT | 2. | Turn control knob to PILOT |
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| position |
| position |
| 3. | Control knob not pressed in | 3. | Press in control knob while |
|
| while in PILOT position |
| in PILOT position |
| 4. | Air in gas lines when in- | 4. | Continue holding down |
|
| stalled |
| control knob. Repeat ignit- |
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|
|
| ing operation until air is |
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| removed |
| 5. | Depleted gas supply (pro- | 5. | Contact local propane/LP |
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| pane/LP only) |
| gas company |
| 6. | ODS/pilot is clogged | 6. | Clean ODS/pilot (see Clean- |
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|
| ing, page 17) or replace |
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| ODS/pilot assembly |
| 7. | Gas regulator setting is not | 7. | Replace gas regulator |
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| correct |
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18 | www.desatech.com |