Troubleshooting
Continued
OBSERVED PROBLEM | POSSIBLE CAUSE | REMEDY | |||
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Manual Ignition System Only | 1. Gas control knob not fully | 1. | Press in gas control knob | ||
Pilot lights but flame goes out |
| pressed in | 2. | fully | |
when control knob is released | 2. Gas control knob not pressed | After pilot lights, keep gas con- | |||
| 3. | in long enough | 3. | trol knob pressed in 30 seconds | |
| Equipment shutoff valve not | Fully open equipment shutoff | |||
| 4. | fully open | 4. | valve | |
| 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, causing |
| B) Clean pilot (see Cleaning | |
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| pilot to go out. This problem |
| and Maintenance, page 23) or | |
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| could be caused by one or |
| replace pilot assembly | |
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| more of the following: |
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| A) Low gas pressure |
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| B) Dirty or partially clogged |
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| 5. | pilot | 5. | Hand tighten until snug, then | |
| Thermocouple connection | ||||
| 6. | loose at control valve. | 6. | tighten 1/4 turn more | |
| Thermocouple damaged | Replace pilot assembly | |||
| 7. | Control valve damaged | 7. | Replace control valve | |
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Burner does not light after pilot is | 1. Burner orifice clogged | 1. | Clean burner (see Cleaning | ||
lit or cycles during operation. |
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| and Maintenance, page 23) or | |
| 2. | Inlet gas pressure is too low | 2. | replace burner orifice | |
| Contact local propane/LP or | ||||
| 3. | Thermopile leads disconnect- | 3. | natural gas company | |
| Reconnect leads | ||||
| 4. | ed or improperly connected | 4. | Replace thermopile | |
| Thermopile is defective | ||||
| 5. | Improper venting or exces- | 5. | Have the vent system inspect- | |
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| sive blockage |
| ed, including the termination | |
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| cap. Remove any restriction | |
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| or obstruction | |
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Delayed ignition at burner | 1. Manifold pressure too low | 1. | Contact local propane/LP or | ||
| 2. | Burner porting or orifice | 2. | natural gas company | |
| Clean burner (see Cleaning | ||||
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| clogged |
| and Maintenance, page 23) or | |
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| replace burner orifice | |
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Burner backfiring during com- | 1. Burner orifice is clogged or | 1. | Clean burner (see Cleaning | ||
bustion |
| damaged |
| and Maintenance, page 23) or | |
| 2. | Damaged burner | 2. | replace burner orifice | |
| Replace damaged burner | ||||
| 3. | Gas regulator defective | 3. | Replace gas control | |
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Slight smoke or odor during | 1. Residues from manufacturing | 1. | Problem will stop after a few | ||
initial operation |
| processes and logs curing |
| hours of operation | |
26 | www.desatech.com |
