
TROUBLESHOOTING
Continued
OBSERVED PROBLEM POSSIBLE CAUSE | REMEDY |
ODS/pilot lights but flame goes out when control knob is released
1.Control knob not fully pressed in
2.Control knob not pressed in long enough
3.Equipment shutoff valve not fully open
4.Pilot flame not touching thermocouple, which al- lows thermocouple to cool, causing pilot flame to go out. This problem could be caused by one or both of the following:
A)Low gas pressure
B)Dirty or partially clogged ODS/pilot
5.Thermocouple connection loose at control valve
6.Thermocouple damaged
7.Control valve damaged
1.Press in control knob fully
2.After ODS/pilot lights, keep control knob pressed in 30 seconds
3.Fully open equipment shut- off valve
4.A) Contact local propane/ LP or natural gas com- pany
B)Clean ODS/pilot (see Cleaning and Maintenance, page 20) or replace ODS/ pilot assembly
5.Hand tighten until snug, then tighten 1/4 turn more
6.Replace pilot assembly
7.Replace control valve
Burner doesn't light after | 1. Burner orifice clogged | 1. | Clean burner (see Cleaning | |
ODS/pilot is lit |
|
|
| and Maintenance, page 20) |
|
|
|
| or replace burner orifice |
| 2. | Inlet gas pressure is too | 2. | Contact local propane/LP |
|
| low |
| or natural gas company |
|
|
|
| |
Delayed ignition of burner | 1. Manifold pressure is too | 1. | Contact local propane/LP | |
|
| low |
| or natural gas company |
| 2. | Burner orifice clogged | 2. | Clean burner (see Cleaning |
|
|
|
| and Maintenance, page 20) |
|
|
|
| or replace burner orifice |
|
|
|
| |
Burner backfiring during | 1. Burner orifice is clogged or | 1. | Clean burner (see Cleaning | |
combustion |
| damaged |
| and Maintenance, page 20) |
|
|
|
| or replace burner orifice |
| 2. | Damaged burner | 2. | Replace damaged burner |
| 3. | Gas regulator defective | 3. | Replace gas regulator |
|
|
|
| |
Slight smoke or odor during | 1. Not enough air | 1. | Check burner for dirt and | |
initial operation |
|
|
| debris. If found, clean |
|
|
|
| burner (see Cleaning and |
|
|
|
| Maintenance, page 20) |
| 2. | Gas regulator defective | 2. | Replace gas regulator |
| 3. | Residues from manufac- | 3. | Problem will stop after a few |
|
| turing processes and logs |
| hours of operation |
|
| curing |
|
|
www.fmiproducts.com | 23 |