OWNER’S MANUAL
TROUBLESHOOTING
Note: For additional help, visit DESA International’s Technical Service web site at www.desatech.com.
WARNING: Never service heater while it is plugged in, connected to propane supply, operating, or hot. Severe burns and electrical shock can occur.
OBSERVED FAULT | POSSIBLE CAUSE | REMEDY | ||||
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Fan does not turn when heater is plugged in. | 1. | No electrical power to heater | 1. | Check voltage to electrical outlet. If volt- | ||
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| age is good, check heater power cord for | |
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| breaks | |
| 2. | Fan hitting inside of heater shell | 2. | Adjust motor/fan guard to keep fan from | ||
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| hitting inside of heater shell. Bend fan | |
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| guard if necessary | |
| 3. | Fan blades bent | 3. | Replace fan. See Fan, page 9 | ||
| 4. | Defective motor | 4. | Replace motor. See Motor, page 8 | ||
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Heater will not ignite. | 1. | User did not follow installation or op- | 1. | Repeat installation and operation in- | ||
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| eration instructions properly |
| structions. See Installation, page 4 and | ||
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| Operation, page 5 | |
| 2. | No spark at ignitor. To test for spark, fol- | 2. | A) Check ignitor wire. Tighten or reat- | ||
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| low step 8 under Ignitor, page 10. If you |
| tach loose ignitor wire. See Figure | ||
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| see spark at ignitor, have heater serviced |
| 14, page 10 for ignitor wire location | ||
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| by qualified service person. If no spark |
| B) Set gap between ignitor electrode and | ||
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| seen: |
| target plate to .17" | ||
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| A) Loose or disconnected ignitor wire |
| C) Tighten nut holding piezo ignitor to | ||
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| B) Wrong spark gap |
| base of heater | ||
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| C) Piezo ignitor loose |
| D) Replace ignitor electrode. See | ||
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| D) Bad ignitor electrode |
| Ignitor, page 10 | ||
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Heater shuts down while running. | 1. | High surrounding air temperature caus- | 1. | This can happen when running heater in | ||
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| ing thermal limit device to shut down |
| temperatures above 85°F. Run heater in | ||
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| heater |
| cooler temperatures | ||
| 2. | Restricted air flow | 2 Check heater inlet and outlet. Remove | |||
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| any obstructions | |
| 3. | Damaged fan | 3. | Replace fan. See Fan, page 9 | ||
| 4. | Excessive dust or debris in surrounding area | 4. | Clean heater. See Maintenance, page 6 | ||
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| WARNING: Use only in areas |
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| free of high dust content. |
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www.desatech.com
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