TROUBLESHOOTING
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| Continued |
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|
OBSERVED PROBLEM | POSSIBLE CAUSE | REMEDY | ||
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 |
|
| fully open |
| valve |
| 4. | Thermocouple connection | 4. | Hand tighten until snug, then |
|
| loose at control valve |
| tighten 1/4 turn more |
| 5. | Pilot flame not touching ther- | 5. | A) Contact local natural or |
|
| mocouple, which allows ther- |
| propane/LP gas company |
|
| mocouple to cool, causing pi- |
| B) Clean ODS/pilot (see |
|
| lot flame to go out. This prob- |
| Cleaning and Maintenance, |
|
| lem could be caused by one or |
| page 19) or replace ODS/pi- |
|
| both of the following: |
| lot assembly |
|
| A) Low gas pressure |
|
|
|
| B) Dirty or partially clogged |
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|
|
| ODS/pilot |
|
|
| 6. | Thermocouple damaged | 6. | Replace pilot assembly |
| 7. | Control valve damaged | 7. | Replace control valve |
| 8. | Safety interlock system has | 8. | Wait one minute for safety in- |
|
| been triggered (thermostat |
| terlock system to reset. Repeat |
|
| models only) |
| ignition operation |
|
|
|
| |
Burner(s) does not light after | 1. Burner orifice(s) is clogged | 1. | Clean burner orifice(s) (see | |
ODS/pilot is lit |
|
|
| Cleaning and Maintenance, |
|
|
|
| page 19) or replace burner |
|
|
|
| orifice(s) |
| 2. | Inlet gas pressure is too low | 2. | Contact local natural or pro- |
|
|
|
| pane/LP gas company |
|
|
|
| |
Delayed ignition of burner(s) | 1. Manifold pressure is too low | 1. | Contact local natural or pro- | |
|
|
|
| pane/LP gas company |
| 2. | Burner orifice(s) is clogged | 2. | Clean burner orifice(s) (see |
|
|
|
| Cleaning and Maintenance, |
|
|
|
| page 19) or replace burner |
|
|
|
| orifice(s) |
|
|
|
| |
Burner backfiring during com- | 1. Burner orifice(s) is clogged or | 1. | Clean burner orifice(s) (see | |
bustion |
| damaged |
| Cleaning and Maintenance, |
|
|
|
| page 19) or replace burner |
| 2. | Burner damaged |
| orifice(s) |
| 3. | Gas regulator defective | 2. | Replace burner |
|
|
| 3. | Replace gas regulator |
|
|
|
| |
Burner plaque(s) does not glow | 1. Plaque damaged | 1. | Replace burner | |
| 2. | Inlet gas pressure is too low | 2. | Contact local natural or pro- |
|
|
|
| pane/LP gas company |
| 3. | Control knob set between | 3. | Turn control knob until it |
|
| locked positions |
| locks at desired setting |
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|
|
| |
Slight smoke or odor during ini- | 1. Residues from manufacturing | 1. | Problem will stop after a few | |
tial operation |
| processes |
| hours of operation |
www.desatech.com | 21 |
