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Status LED | Status LED Description |
| Status LED Troubleshooting Information |
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| 1. | Low line voltage to compressor |
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Yellow “ALERT” | Locked Rotor |
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2. | Excessive liquid refrigerant in compressor |
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Flash Code 4 | LOCKOUT |
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| 3. | Compressor bearings are seized |
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Yellow “ALERT” | Open Circuit | 1. Condensing unit power disconnect is open |
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Flash Code 5 |
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| 2. | Compressor circuit breaker or fuses are open |
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| 3. | Compressor contactor has failed open |
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| 4. | High pressure switch is open and requires manual reset |
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| 5. | Broken supply wires or connector is not making contact |
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| 6. | Unusually long compressor protector reset time due to |
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| 7. | Compressor windings are damaged |
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Yellow “ALERT” | Missing Phase | 1. Compressor fuse is open on one phase |
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Flash Code 6 | LOCKOUT |
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| 2. | Broken wire or connector on one phase |
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| 3. | Compressor motor winding is damaged |
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| 4. Utility supply has dropped one phase |
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Yellow “ALERT” | Reverse Phase | 1. Compressor running backward due to |
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Flash Code 7 | LOCKOUT |
| supply phase reversal |
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Yellow “ALERT” | Welded Contactor | 1. Compressor contactor has failed closed |
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Flash Code 8 | Compressor always runs |
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| 2. | Thermostat demand signal not connected to module |
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Yellow “ALERT” | Low Voltage | 1. Control circuit transformer is overloaded |
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Flash Code 9 | Control circuit < 18VAC |
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| 2. | Low line voltage to compressor |
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Flash code number corresponds to a number of LED flashes, followed by a pause and then repeated.
TRIP and ALERT LED’s flashing at the same time means control circuit voltage is too low for opera- tion.
Resetting Alert Codes
Alert codes can be reset manually and automatically. The manual method to reset an Alert code is to cycle the power to Comfort Alert off and on. For automatic reset, Comfort Alert continues to monitor the compressor and system after an Alert is detected. If conditions return to normal, the Alert code is turned off automatically. ALERT codes that result in a compressor lock out can only be reset manually. ALERT codes that result in a lockout can only be reset manually.
20 | JOHNSON CONTROLS |
