®
MDVFST
TROUBLESHOOTING
Continued
OBSERVED PROBLEM | POSSIBLE CAUSE | REMEDY | ||
When ignitor button is pressed, there is | 1. | Gas supply turned off or equipment | 1. | Turn on gas supply or open equipment |
spark at pilot but no ignition |
| shutoff valve closed |
| shutoff valve |
| 2. | Control knob not in PILOT position | 2. | Turn control knob to PILOT position |
| 3. | Control knob not pressed in while in | 3. | Press in control knob while in PILOT |
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| PILOT position |
| position |
| 4. | Air in gas lines when installed | 4. | Continue holding down control knob. |
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| Repeat igniting operation until air is |
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| removed |
| 5. | Depleted gas supply (propane/LP | 5. | Contact local propane/LP gas company |
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| models only) |
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| 6. | Pilot is clogged | 6. | Clean pilot or replace pilot assembly |
| 7. | Gas regulator setting is not correct | 7. | Replace gas control |
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Pilot lights but flame goes out when control | 1. | Control knob not fully pressed in | 1. | Press in control knob fully |
knob is released | 2. | Control knob not pressed in long enough | 2. | After pilot lights, keep control knob |
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| pressed in 30 seconds |
| 3. | Equipment shutoff valve not fully open | 3. | Fully open equipment shutoff valve |
| 4. | Pilot flame not touching thermocouple, | 4. | A) Contact local gas company |
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| which allows thermocouple to cool, |
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| causing pilot flame to go out. This prob- |
| B) Clean pilot or replace pilot assembly |
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| lem could be caused by one or both of |
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| the following: |
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| A) Low gas pressure |
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| B) Dirty or partially clogged pilot |
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| 5. | Thermocouple connection loose at con- | 5. | Hand tighten until snug, then tighten |
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| trol valve |
| 1/4 turn more |
| 6. | Thermocouple damaged | 6. | Replace thermocouple |
| 7. | Control valve damaged | 7. | Replace control valve |
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Burner does not light after pilot is lit | 1. | Burner orifice clogged | 1. | Clean burner or replace burner orifice |
| 2. | Inlet gas pressure is too low | 2. | Contact local propane/LP or natural gas |
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| company |
| 3. | Thermopile leads disconnected or im- | 3. | Reconnect leads |
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| properly connected |
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| 4. | Thermopile is defective | 4. | Replace thermopile |
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Delayed ignition burner | 1. | Manifold pressure is too low | 1. | Contact local propane/LP or natural gas |
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| company |
| 2. | Burner porting or orifice clogged | 2. | Clean burner or replace burner orifice |
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Burner backfiring during combustion | 1. | Burner orifice is clogged or damaged | 1. | Clean burner or replace burner orifice |
| 2. | Damaged burner | 2. | Replace damaged burner |
| 3. | Gas regulator defective | 3. | Replace gas control |
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Slight smoke or odor during initial operation | 1. | Residues from manufacturing processes | 1. | Problem will stop after a few hours of |
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| and logs curing |
| operation |
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Fireplace produces a whistling noise when | 1. | Air in gas line | 1. | Operate burner until air is removed from |
burner is lit |
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| line. Have gas line checked by local pro- |
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| pane/LP gas company |
| 2. | Dirty or partially clogged burner orifice | 2. | Clean burner or replace burner orifice |
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