TROUBLESHOOTING
Continued
OBSERVED PROBLEM | POSSIBLE CAUSE | REMEDY | ||
ODS/pilot lights but flame | 1. | Control knob not fully | 1. | Press in control knob fully |
goes out when control knob |
| pressed in |
|
|
is released | 2. | Control knob not pressed in | 2. | After ODS/pilot lights, keep |
|
| long enough |
| control knob pressed in 30 |
|
|
|
| seconds |
| 3. | Equipment shutoff valve not | 3. | Fully open equipment shut- |
|
| fully open |
| off valve |
| 4. | Pilot flame not touching | 4. | A) Contact local natural or |
|
| thermocouple, which al- |
| propane/LP gas company |
|
| lows thermocouple to cool, |
|
|
|
| causing pilot flame to go |
| B) Clean ODS/pilot (see |
|
| out. This problem could be |
| Cleaning and Maintenance, |
|
| caused by one or both of |
| page 18) or replace ODS/ |
|
| the following: |
| pilot assembly |
|
| A) Low gas pressure |
|
|
|
| B) Dirty or partially clogged |
|
|
|
| ODS/pilot |
|
|
| 5. | Thermocouple connection | 5. | Hand tighten until snug, |
|
| loose at control valve |
| then tighten 1/4 turn more |
| 6. | Thermocouple damaged | 6. | Replace pilot assembly |
| 7. | Control valve damaged | 7. | Replace control valve |
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|
Burner does not light after | 1. | Burner orifice clogged | 1. | Clean burner (see Cleaning |
ODS/pilot is lit |
|
|
| and Maintenance, page 18) |
|
|
|
| or replace burner orifice |
| 2. | Inlet gas pressure is too | 2. | Contact local natural or |
|
| low |
| propane/LP gas company |
|
|
|
|
|
Delayed ignition of burner | 1. | Manifold pressure is too | 1. | Contact local natural or |
|
| low |
| propane/LP gas company |
| 2. | Burner orifice clogged | 2. | Clean burner (see Cleaning |
|
|
|
| and Maintenance, page 18) |
|
|
|
| or replace burner orifice |
|
|
|
|
|
Burner backfiring during com- | 1. | Burner orifice is clogged or | 1. | Clean burner (see Cleaning |
bustion |
| damaged |
| and Maintenance, page 18) |
|
|
|
| or replace burner orifice |
| 2. | Damaged burner | 2. | Replace damaged burner |
| 3. | Gas regulator defective | 3. | Replace gas regulator |
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| ||
Burner plaque(s) does not | 1. Plaque damaged | 1. Replace burner | ||
glow | 2. | Inlet gas pressure is too | 2. Contact local natural or pro- | |
|
| low |
| 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 | 1. Residues from manufactur- | 1. Problem will stop after a few | ||
initial operation |
| ing processes |
| hours of operation |
|
|
|
| |
Heater produces a clicking/ | 1. | Metal expanding while | 1. This is normal with most heat- | |
ticking noise just after burner |
| heating or contracting while |
| ers. If noise is excessive, con- |
is lit or shut off |
| cooling |
| tact qualified service person |
20 | www.fmiproducts.com |