TROUBLESHOOTING
Continued
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 | 3. | long enough | 3. | trol knob pressed in 30 seconds |
| Equipment shutoff valve not | Fully open equipment shutoff | ||
| 4. | fully open | 4. | valve |
| Pilot flame not touching ther- | A) Contact local natural or | ||
|
| mocouple, which allows ther- |
| propane/LP gas company |
|
| mocouple to cool, causing |
| B) Clean ODS/pilot (see |
|
| pilot flame to go out. This |
| |
|
| problem could be caused by |
| Cleaning and Maintenance, |
|
| one or both of the following: |
| page 20) or replace ODS/pilot |
|
| A) Low gas pressure |
| assembly |
|
| B) Dirty or partially clogged |
|
|
| 5. | ODS/pilot | 5. | Hand tighten until snug, then |
| Thermocouple connection | |||
| 6. | loose at control valve | 6. | tighten 1/4 turn more |
| Thermocouple damaged | Replace pilot assembly | ||
| 7. | Control valve damaged | 7. | Replace control valve |
Burner does not light after ODS/ | 1. Burner orifice clogged | 1. | Clean burner (see Cleaning | |
pilot is lit |
|
|
| and Maintenance, page 20) |
| 2. | Inlet gas pressure is too low | 2. | or replace burner orifice |
| Contact local natural or pro- | |||
| 3. | Thermopile leads disconnect- | 3. | pane/LP gas company |
| Reconnect leads (see Wiring | |||
| 4. | ed or improperly connected | 4. | Diagram, page 21) |
| Burners will not come on in | Replace battery in transmitter | ||
|
| remote position |
| and receiver |
Delayed ignition burner | 1. Manifold pressure is too low | 1. | Contact local natural or pro- | |
| 2. | Burner orifice clogged | 2. | pane/LP gas company |
| Clean burner (see Cleaning | |||
|
|
|
| and Maintenance, page 20) |
|
|
|
| or replace burner orifice |
|
|
|
| |
Burner backfiring during com- | 1. Burner orifice is clogged or | 1. | Clean burner (see Cleaning | |
bustion |
| damaged |
| and Maintenance, page 20) |
| 2. | Damaged burner | 2. | or replace burner orifice |
| Replace damaged burner | |||
| 3. | Gas regulator defective | 3. | Replace gas control |
|
|
|
| |
Slight smoke or odor during initial | 1. Not enough air | 1. | Check burner for dirt and | |
operation |
|
|
| debris. If found, clean burner |
|
|
|
| (see Cleaning and Mainte- |
| 2. | Gas regulator defective | 2. | nance, page 20) |
| Replace gas control | |||
| 3. | Residues from manufacturing | 3. | Problem will stop after a few |
|
| processes and logs curing |
| hours of operation |
www.desatech.com | 23 |
