OWNER’S MANUAL
MAINTENANCE
WARNINGS
•Never service heater while it is plugged in, connected to pro- pane supply, operating, or hot. Severe burns and electrical shock can occur.
•Keep heater clear and free from combustible materials, gaso- line, and other flammable va- pors and liquids.
•Do not block the flow of com- bustion or ventilation air.
1.Keep heater clean. Clean heater annu- ally or as needed to remove dust and debris. If heater is dirty or dusty, clean heater with a damp cloth. Use house- hold cleaners on difficult spots.
2.Inspect heater before each use. Check connections for leaks. Apply mixture of liquid soap and water to connections. Bubbles forming show a leak. Correct all leaks at once.
3.Inspect hose/regulator assembly before each use. If hose is highly worn or cut, replace.
4.Have heater inspected yearly by a quali- fied service agency.
5.Keep inside of heater free from com- bustible and foreign objects. Remove motor and other internal parts if needed to clean inside of heater (see Service Procedures, page 8).
6.Clean fan blades each season or as needed (see Fan, page 9).
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 | ||
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 |
Heater will not ignite. | 1. User did not follow installation or op- |
| eration instructions properly |
| 2. No spark at ignitor. To test for spark, fol- |
| low step 9 under Ignitor, page 13. If you |
| see spark at ignitor, have heater serviced |
| by qualified service person. If no spark |
| seen: |
| A) Loose or disconnected ignitor wire |
| B) Wrong spark gap |
| C) Piezo ignitor loose |
| D) Bad ignitor electrode |
1.Repeat installation and operation in- structions. See Installation, page 5 and Operation, page 6
2.A) Check ignitor wire. Tighten or reat- tach loose ignitor wire. See Figure 17, page 9 for ignitor wire location
B)Set gap between ignitor electrode and target plate to .17"
C)Tighten nut holding piezo ignitor to base of heater
D)Replace ignitor electrode. See Igni- tor, page 9
Heater shuts down while running.
1.High surrounding air temperature caus- ing thermal limit device to shut down heater
2.Restricted air flow
3.Damaged fan
4.Excessive dust or debris in surrounding area
1.This can happen when running heater in temperatures above 85°F. Run heater in cooler temperatures
2.Check heater inlet and outlet. Remove any obstructions
3.Replace fan. See Fan, page 9
4.Clean heater. See Maintenance, above.
WARNING: Use only in areas free of high dust content.
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