TROUBLESHOOTING
Note: For additional help, visit DESA International’s Technical Service web site at www.desatech.com.
Note: Before troubleshooting the system, make sure the gas shutoff valve is ON.
Note: All troubleshooting items are listed in order of operation.
TROUBLESHOOTING
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WARNING: Turn off heater and let cool before servic- ing. Only a qualified service person should service and repair heater.
CAUTION: Never use a wire, needle, or similar object to clean pilot. This can damage pilot unit.
OBSERVED PROBLEM | POSSIBLE CAUSE | REMEDY | ||
Pilot will not light | 1. | No gas supply, or shutoff valve is OFF | 1. | Check to see if you have gas supply |
| 2. | Air in gas line | 2. | Hold control valve in the PILOT position |
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| for 2 to 3 minutes to purge air. If you smell |
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| gas stop and wait for a few minutes before |
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| trying to light the fireplace |
| 3. | Construction debris clogging pilot orifice | 3. | Remove debris and dirt, inspect and |
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| clean any other possible obstructions |
| 4. | Low gas pressure | 4. | Contact your gas supplier |
| 5. | Control valve knob is not on the PILOT | 5. | Refer to section on pilot lighting |
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| 6. | Kinked pilot line | 6. | Have a qualified technician replace pi- |
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| lot line |
| 7. | Bad valve | 7. | Replace control valve (see Replacement |
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| Parts, page 24) |
| 8. | Bad thermocouple or loose connection | 8. | Tighten thermocouple or replace |
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No gas to burner, although wall switch and | 1. | Wall switch wires defective | 1. | Check electrical connections |
valve are set to the ON position |
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Frequent pilot outage | 1. Pilot flame may be too low, causing |
| safety pilot to “drop out” |
1.Clean and adjust pilot flame for maximum flame impingement on thermopile
Burner goes off after a short time | 1. | Venting recirculation problem | 1. | Have a qualified technician check vent- |
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| ing system for leaks or obstructions. |
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| Have a qualified technician measure the |
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| pilot’s millivoltage |
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When ignitor button is pressed, there is no | 1. | Ignitor electrode not connected to igni- | 1. | Reconnect ignitor cable |
spark at pilot |
| tor cable |
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| 2. | Ignitor cable pinched or wet | 2. | Free ignitor cable if pinched by any |
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| metal or tubing. Keep ignitor cable dry |
| 3. | Piezo ignitor nut is loose | 3. | Tighten nut holding piezo ignitor. Nut |
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| is located behind the mounting bracket |
| 4. | Broken ignitor cable | 4. | Replace ignitor cable |
| 5. | Bad piezo ignitor | 5. | Replace piezo ignitor |
| 6. | Ignitor electrode broken | 6. | Replace pilot assembly |
| 7. | Ignitor electrode positioned wrong | 7. | Replace pilot assembly |
For more
visit www.
.com
