TROUBLESHOOTING
(In addition to instruction manual.)
LED Status | Control Status |
| Probable Cause | |
None (LED not on | Electrical pow er not | 1. | Control pow er sw itch in " OFF" position | |
or flashing) | present | 2. | Supply voltage interrupted | |
One short flash | Temperature demand is satisfied (no call for | |||
every four | Thermostat is satisfied (no | |||
seconds | faults) | heat) | ||
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Alternates bright | Thermostat calling for heat | Tank temperature below setpoint of | ||
and dim | (no fault) | thermostat | ||
(heartbeat) | ||||
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| 1. | Unstable pilot | |
Short flash once | Weak pilot signal on last | 2. | Pilot tube block or restricted | |
3. | Oxidation | |||
every second | call for heat | 4. | Wire damage to pilot assembly or bad | |
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| connection at gas valve | ||
Tw o flashes, |
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three second | Relay not w orking | Faulty relay | ||
pause |
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Three flashes, |
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three second | Relay not w orking | Faulty relay | ||
pause |
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Four flashes, | Excessive tank | 1. | Thermal w ell sensor out of calibration | |
three second | temperature, system must | |||
pause | be reset | 2. | Faulty gas valve | |
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Five flashes, | False pilot flame present | Pilot valve stuck in open position | ||
three second | ||||
pause |
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Six flashes, one |
| 1. | Unstable pilot | |
Failed to light pilot, | 2. | Pilot tube block or restricted | ||
flash, three | ||||
system resets after (5) | 3. | Oxidation | ||
second pause | ||||
minutes | 4. | Wire damage to pilot assembly or bad | ||
(Soft Lockout) | ||||
| connection at gas valve | |||
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