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TROUBLESHOOTING TECHNICAL SERVICE
TROUBLESHOOTING
You may have further questions about this heater. If so, contact DESA International’s Technical Service Department at
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 |
Burner fails to light | 1. | Propane/LP supply valve closed on |
|
| propane/LP cylinder |
| 2. | Blockage in burner/orifice elbow/hose and |
|
| regulator assembly |
| 3. | Piezo ignition system not sparking |
1.Open propane/LP supply valve slowly
2.Clean burner/replace orifice elbow/hose and regulator assembly
3.Verify ignitor electrode gap is .20". Check wire lead for damage. Replace piezo ignitor and/or ignitor electrode as necessary
Burner lights but goes out | 1. | Not enough | 1. | Relight, hold automatic control valve button in |
when automatic control |
|
|
| 30 seconds |
valve button is released | 2. | Low gas pressure | 2. | Check propane/LP cylinder 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 replaced | 4. | Replace automatic control valve assembly |
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|
|
|
|
Maximum burn rate is low | 1. | Low gas pressure | 1. | Check gas supply; check regulator output |
| 2. | Low fuel supply | 2. | Consult propane/LP gas supplier |
| 3. | Restriction in burner/orifice elbow/hose and | 3. | Clean burner/replace orifice elbow/hose and |
|
| regulator assembly |
| regulator assembly |
TECHNICAL SERVICE
You may have further questions about installation, operation, or troubleshooting. If so, contact DESA International’s Technical Service Department at
You can also visit DESA International’s technical service web site at www.desatech.com.
For
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.com
107396
