TROUBLESHOOTING
Continued
OBSERVED PROBLEM | POSSIBLE CAUSE | REMEDY | |||
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ODS/pilot lights but flame goes | 1. Control knob not fully pressed in | 1. | Press in control knob fully | ||
out when control knob is re- | 2. Control knob not pressed in | 2. | After ODS/pilot lights, keep | ||
leased |
| long enough |
| control knob pressed in 30 | |
| 3. | Equipment shutoff valve not |
| seconds | |
| 3. | Fully open equipment shutoff | |||
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| fully open |
| valve | |
| 4. | Pilot flame not touching ther- | 4. | A) Contact local natural or | |
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| mocouple, which allows ther- |
| propane/LP gas company | |
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| mocouple to cool, causing |
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| pilot flame to go out. This |
| B) Clean ODS/pilot (see | |
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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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| ODS/pilot |
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| 5. | Thermocouple connection | 5. | Hand tighten until snug, then | |
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| loose at control valve |
| tighten 1/4 turn more | |
| 6. | Thermocouple damaged | 6. | Replace pilot assembly | |
| 7. | Control valve damaged | 7. | 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(s) clogged |
| pane/LP gas company | |
| 2. | Clean burner(s) (see Cleaning | |||
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| and Maintenance, page 24) or | |
| 3. | Thermopile leads disconnect- |
| replace burner orifice(s) | |
| 3. | Reconnect leads (see Wiring | |||
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| ed or improperly connected |
| Diagram, page 29) | |
| 4. | Burner will not come on in | 4. | Replace battery in transmitter | |
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| remote position |
| and receiver | |
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Delayed ignition of one or both | 1. Manifold pressure is too low | 1. | Contact local natural or pro- | ||
burners | 2. | Burner orifice(s) clogged |
| pane/LP gas company | |
| 2. | Clean burner(s) (see Cleaning | |||
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| and Maintenance, page 24) or | |
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| replace burner orifice(s) | |
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Burner backfiring during com- | 1. Burner orifice is clogged or | 1. | Clean burner (see Cleaning | ||
bustion |
| damaged |
| and Maintenance, page 24) or | |
| 2. | Damaged burner |
| replace burner orifice(s) | |
| 2. | Replace damaged burner | |||
| 3. | Gas regulator defective | 3. | Replace gas regulator | |
26 | www.desatech.com |