Troubleshooting
WARNING: Never attempt to service heater while it is connected to propane/LP supply, operating, or hot. Severe burns can occur.
SYMPTOM | POSSIBLE CAUSE | REMEDY | ||
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Burner fails to light | 1. Propane/LP supply valve | 1. | Open propane/LP supply | |
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| closed on propane/LP cyl- |
| valve slowly |
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| inder |
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| 2. | Blockage in burner/orifice | 2. | Clean burner/replace orifice |
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| elbow/hose and regulator |
| elbow/hose and regulator |
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| assembly |
| assembly |
| 3. | Battery not installed, battery | 3. | Install new alkaline battery |
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| power low or battery not |
| in electronic ignitor. Verify |
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| installed correctly |
| battery is installed correctly. |
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| See page 14 |
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Burner lights but goes out | 1. Not enough warm up time | 1. | Relight, hold automatic | |
when automatic control valve |
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| control valve button in 30 |
button is released |
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| seconds |
| 2. | Low gas pressure | 2. | Check propane/LP cylinder |
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| for proper gas supply |
| 3. | Thermocouple loose or | 3. | Tighten connection or re- |
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| needs to be replaced |
| place thermocouple |
| 4. | Automatic control valve | 4. | Replace automatic control |
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| needs to be replaced |
| valve assembly |
| 5. | Thermocouple gap is too | 5. | Tip of thermocouple should |
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| great |
| just touch the emitter mate- |
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| rial. Loosen bracket screws |
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| to move thermocouple clos- |
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| er to burner. Be careful not |
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| to allow ignitor to touch. |
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| Maintain 0.20" |
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Maximum burn rate is low | 1. Low gas pressure | 1. | Check gas supply; check | |
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| regulator output |
| 2. | Low fuel supply | 2. | Consult propane/LP gas |
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| supplier |
| 3. | Restriction in burner/orifice | 3. | Clean burner/replace orifice |
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| elbow/hose and regulator |
| elbow/hose and regulator |
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| assembly |
| assembly |
10 | www.desatech.com |
