TROUBLESHOOTING
Continued
| OBSERVED PROBLEM | POSSIBLE CAUSE | REMEDY | |||
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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 | 2. | closed | 2. | Turn control knob to PILOT | |
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| Control knob not in PILOT | ||||
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| 3. | position | 3. | position | |
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| Control knob not pressed in | Press in control knob while in | |||
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| 4. | while in PILOT position | 4. | PILOT position | |
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| Air in gas lines when | Continue holding down con- | |||
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| installed |
| trol knob. Repeat igniting op- | |
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| 5. | Depleted gas supply (pro- | 5. | eration until air is removed | |
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| Contact local propane/LP gas | ||||
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| 6. | pane/LP only) | 6. | company | |
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| ODS/pilot is clogged | Clean ODS/pilot (see Cleaning | |||
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| and Maintenance, page 24) or | |
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| 7. | Gas regulator setting is not | 7. | replace ODS/pilot assembly | |
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| Replace gas regulator | ||||
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| correct |
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| ODS/pilotlightsbutflamegoesout | 1. Control knob not fully | 1. | Press in control knob fully | ||
| when control knob is released | 2. | pressed in | 2. | After ODS/pilot lights, keep con- | |
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| Control knob not pressed in | ||||
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| 3. | long enough | 3. | trol knob pressed in 30 seconds | |
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| Safety interlock system has | Wait one minute for safety in- | |||
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| been triggered |
| terlock system to reset. Repeat | |
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| 4. | Equipment shutoff valve not | 4. | ignition operation | |
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| Fully open equipment shutoff | ||||
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| 5. | fully open | 5. | valve | |
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| Pilot flame not touching | A) Contact local natural or | |||
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| thermocouple, which allows |
| propane/LP gas company | |
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| thermocouple to cool, caus- |
| B) Clean ODS/pilot (see | |
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| ing pilot flame to go out. This |
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| problem could be caused by |
| Cleaning and Maintenance, | |
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| one or both of the following: |
| page 24) or replace ODS/pilot | |
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| A) Low gas pressure |
| assembly | |
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| B) Dirty or partially clogged |
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| 6. | ODS/pilot | 6. | Hand tighten until snug, then | |
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| Thermocouple connection | ||||
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| 7. | loose at control valve | 7. | tighten 1/4 turn more | |
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| Thermocouple damaged | Replace pilot assembly | |||
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| 8. | Control valve damaged | 8. | Replace control valve | |
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| Burner does not light after ODS/ | 1. Inlet gas pressure is too low | 1. | Contact local natural or pro- | ||
| pilot is lit | 2. | Burner orifice is clogged | 2. | pane/LP gas company | |
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| Clean burner (see Cleaning | ||||
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| and Maintenance, page 24) or | |
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| 3. | Thermopile leads disconnected | 3. | replace burner orifice | |
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| Reconnect leads (see Wiring | ||||
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| or improperly connected (Re- |
| Diagram, page 29) | |
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| 4. | 4. | Replace battery in | ||
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| Burners will not come on in | ||||
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| remote position (Remote- |
| remote and receiver | |
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| Ready Models Only) |
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26 | www.desatech.com |
