TROUBLESHOOTING
Note: All troubleshooting items are listed in order of operation.
WARNING: Turn off heater and let cool before servicing. Only a qualified service person should service and repair heater.
CAUTION: Never use a wire, needle, or similar object to clean ODS/pilot. This can damage ODS/pilot unit.
OBSERVED PROBLEM | POSSIBLE CAUSE | REMEDY | ||
When ignitor button is pressed, | 1. Ignitor electrode not con- | 1. | Reconnect ignitor cable | |
there is no spark at ODS/pilot |
| nected to ignitor cable |
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| 2. | Ignitor cable pinched or wet | 2. | Free ignitor cable if pinched |
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| by any metal or tubing. Keep |
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| ignitor cable dry |
| 3. | Piezo ignitor nut is loose | 3. | Tighten nut holding piezo igni- |
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| tor to base panel of log set. Nut |
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| is located behind base panel |
| 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 |
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When ignitor button is pressed, | 1. Gas supply turned off or equip- | 1. | Turn on gas supply or open | |
there is spark at ODS/pilot but |
| ment shutoff valve closed |
| equipment shutoff valve |
no ignition | 2. Control knob not in PILOT | 2. | Turn control knob to PILOT | |
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| position |
| position |
| 3. | Control knob not pressed in | 3. | Press in control knob while in |
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| while in PILOT position |
| PILOT position |
| 4. | Air in gas lines when installed | 4. | Continue holding down con- |
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| trol knob. Repeat igniting op- |
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| eration until air is removed |
| 5. | Depleted gas supply (propane/ | 5. | Contact local propane/LP gas |
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| LP only) |
| company |
| 6. | ODS/pilot is clogged | 6. | Clean ODS/pilot (see Clean- |
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| ing and Maintenance, pages |
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| 24 and 25) or replace ODS/ |
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| pilot assembly |
| 7. | Gas regulator setting is not correct | 7. | Replace gas regulator |
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ODS/pilot lights but flame goes | 1. Control knob not fully pressed in | 1. | Press in control knob fully | |
out when control knob is re- | 2. | Control knob not pressed in | 2. | After ODS/pilot lights, keep con- |
leased |
| long enough |
| trol knob pressed in 30 seconds |
| 3. | Equipment shutoff valve not | 3. | Fully open equipment shutoff |
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| fully open |
| valve |
| 4. | Pilot flame not touching ther- | 4. | A) Contact local propane/LP |
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| mocouple, which allows ther- |
| or natural gas company |
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| mocouple to cool, causing pi- |
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| lot flame to go out. This prob- |
| B) Clean ODS/pilot (see |
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| lem could be caused by one or |
| Cleaning and Maintenance, |
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| both of the following: |
| pages 24 and 25) or replace |
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| A) Low gas pressure |
| ODS/pilot assembly |
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| B) Dirty or partially clogged |
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| ODS/pilot |
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| 5. | Thermocouple connection | 5. | Hand tighten until snug, then |
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| loose at control valve |
| tighten 1/4 turn more |
| 6. | Thermocouple damaged | 6. | Replace pilot assembly |
| 7. | Control valve damaged | 7. | Replace control valve |
26 | www.desatech.com |
