Troubleshooting
LED Status | Control Status |
| Probable Cause | Service Procedure | |
Six flashes, | Relay not working |
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two flashes, | properly during |
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three second | burner operation, | Faulty relay | |||
page 28 | |||||
pause (Soft | system auto resets |
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Lockout) | after (5) minutes |
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| 1. | Unstable pilot |
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Six flashes, |
| 2. | Pilot tube block or restricted | 1. See Burner Inspection | |
| 3. | Oxidation | on page 17 | ||
three | Pilot flame | ||||
electrode | |||||
flashes, | extinguished, | ||||
4. | Wire damage to pilot | Testing and Replacement | |||
three second | system auto resets | ||||
pause (Soft | after (5) minutes | assembly or bad connection at | on page 19 | ||
gas control | 5. Refer to Installation & | ||||
Lockout) |
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| 5. | Insufficient combustion air | Operation Manual | ||
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| 6. | Insufficient gas pressure |
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Six flashes, | Undesired false |
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four flashes, |
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pilot flame sensed, | Pilot valve stuck in open position | Replace gas control | |||
three second | |||||
pause | system auto resets |
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| 1. | Flammable vapor present |
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| Flammable vapor | 2. | Flammable vapor sensor |
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Seven | sensor or | exposed to excessive moisture |
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flashes, | resettable thermal | 3. | Flammable vapor sensor | See Flammable Vapor | |
three second | switch fault | exposed to extreme ambient | Sensor Testing on page 27 | ||
pause | detected, see | temperature |
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| warning label | 4. | Resettable thermal switch |
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| open |
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| 1. | Flammable vapor sensor out |
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Eight | Flammable vapor | of specification; verify Flammable |
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flashes, one | Vapor Sensor (FVS) resistance is |
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sensor out of | See Flammable Vapor | ||||
flash, three | specification, | not below 25 k. | Sensor Testing on page 27 | ||
second | 2. | Possible short in flammable | |||
possible short |
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pause | vapor sensor or resettable |
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| thermal switch wiring |
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| 1. | Damage to thermal well wires |
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Eight |
| 2. | Thermal well sensor |
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Thermal well sensor | resistance out of range |
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flashes, |
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damaged or | 3. | Replace thermal well |
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three | See Thermal Well Testing | ||||
unplugged or gas | 4. | Verify control is not wet or | |||
flashes, | on page 21 | ||||
control electronics | physically damaged | ||||
three second |
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pause | fault detected | 5. | Reset control on/off switch |
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| 6. | Replace gas control if |
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Eight |
| 1. | Verify control is not wet or | 1. Replace gas control if | |
flashes, four |
| physically damaged | |||
Gas control fault | wet or physically damaged | ||||
flashes, | 2. | Reset control on/off switch | |||
detected | 2. Cycle power | ||||
three second | 3. | Replace gas control if | |||
pause |
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