Troubleshooting
Continued
OBSERVED PROBLEM | POSSIBLE CAUSE | REMEDY | ||||
ODS/pilot lights but flame | 1. Control knob not fully pressed in | 1. | Press in control knob fully |
| ||
goes out when control knob is | 2. Control knob not pressed in | 2. | After ODS/pilot lights, keep con- | |||
released | 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 23) 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 | 1. Burner orifice clogged | 1. | Clean burner (see Cleaning | |||
ODS/pilot is lit |
|
|
| and Maintenance, page 23) | ||
|
| 2. | Inlet gas pressure is too low | 2. | or replace burner orifice | |
|
| Contact local natural gas | ||||
|
| 3. | Thermopile leads disconnected | 3. | company | |
|
| Reconnect leads (see Wiring | ||||
|
| 4. | or improperly connected | 4. | Diagrams, page 24) | |
|
| 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 23) | |
|
|
|
|
| or replace burner orifice | |
|
|
|
|
|
| |
Burner backfiring during com- | 1. Burner orifice is clogged or | 1. | Clean burner (see Cleaning | |||
bustion |
| damaged |
| and Maintenance, page 23) | ||
|
| 2. | Damaged burner | 2. | or replace burner orifice | |
|
| Replace damaged burner | ||||
|
| 3. | Gas regulator defective | 3. | Replace gas control | |
26 | www.desatech.com |
