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 not con- | 1. | Reconnect ignitor cable | |
there is no spark at ODS/pilot |
| nected to ignitor cable | 2. | Free ignitor cable if pinched |
| 2. | Ignitor cable pinched or wet | ||
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| by any metal or tubing. Keep |
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| ignitor cable dry |
| 3. | Broken ignitor cable | 3. | Replace ignitor cable |
| 4. | Bad piezo ignitor | 4. | Replace piezo ignitor |
| 5. | Ignitor electrode positioned | 5. | Replace pilot assembly for |
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| wrong or broken |
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| ignitor electrode for variable |
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| manually controlled units |
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When ignitor button is pressed, | 1. Gas supply turned off or equip- | 1. | Turn on gas supply or open | |
there is spark at ODS/pilot but |
| ment shutoff valve closed |
| equipment shutoff valve |
no ignition | 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 in |
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| while in PILOT position |
| PILOT position |
| 4. | Air in gas lines when in- | 4. | Continue holding down con- |
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| stalled |
| trol knob. Repeat igniting |
| 5. | Depleted gas supply (pro- |
| operation until air is removed |
| 5. | Contact local propane/LP gas | ||
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| pane/LP only) |
| company |
| 6. | ODS/pilot is clogged | 6. | Clean ODS/pilot (see Cleaning |
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| and Maintenance, page 21) or |
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| replace ODS/pilot assembly |
| 7. | External gas regulator setting | 7. | Replace gas regulator |
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| is not correct |
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22 | www.desatech.com |