TROUBLESHOOTING
Note: For additional help, visit DESA International’s technical service website at www.desatech.com.
TROUBLESHOOTING
7
WARNING: Never attempt to service heater while it is connected to propane supply, operating, or hot. Severe burns can occur.
SYMPTOM | POSSIBLE CAUSE | REMEDY | ||
Burner fails to light | 1. | Propane supply valve closed on propane | 1. | Open propane supply valve slowly |
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| tank(s) |
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| 2. | 2. | Close propane supply valve on propane tank | |
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| and reopen slowly |
| 3. | Blockage in burner nozzle | 3. | Replace burner nozzle |
| 4. | Piezo ignition system not sparking | 4. | Check to assure ignitor electrode gap is |
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| .130". Check wire lead for damage. Replace |
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| piezo ignitor and/or ignitor electrode as nec- |
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| essary |
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Burner lights but goes out when auto- | 1. | Not enough | 1. | Relight, hold automatic control valve but- |
matic control valve button is released |
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| ton in 45 seconds |
| 2. | Low gas pressure | 2. Check propane tank(s) for proper gas supply | |
| 3. | Thermocouple loose or needs to be replaced | 3. | Tighten connection or replace thermocouple |
| 4. | Automatic control valve needs to be re- | 4. | Replace automatic control valve |
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| placed |
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| 1. | Main burner valve not fully open | 1. | Fully open main burner valve by turning |
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| control knob towards HIGH position until |
Burn rate is low |
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| it stops |
| 2. | Plugged gas orifices | 2. | Replace gas orifice |
| 3. | Low gas pressure | 3. | Check gas supply; check regulator output |
| 4. | Low fuel supply | 4. | Consult propane gas supplier |
For more information, visit www.desatech.com
