Energy Tech Laboratories DSH 사용자 설명서

JOHNSON CONTROLS

FORM 145.32-IOM1 (908)

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.

 

1. Low line voltage to compressor 

2. Excessive liquid refrigerant in compressor 

3. Compressor bearings are seized 

1. Condensing unit power disconnect is open 

2. Compressor circuit breaker or fuses are open 

3. Compressor contactor has failed open 

4. High pressure switch is open and requires manual reset 

5. Broken supply wires or connector is not making contact 

6. Unusually long compressor protector reset time due to   

extreme ambient temperature 
7. Compressor windings are damaged 

1. Compressor fuse is open on one phase 

2. Broken wire or connector on one phase 

3. Compressor motor winding is damaged 

4. Utility supply has dropped one phase 

Yellow “ALERT” 

Flash Code 7 

Reverse Phase 

LOCKOUT 

1. Compressor running backward due to 

     supply phase reversal 
1. Compressor contactor has failed closed  

2. Thermostat demand signal not connected to module 

1. Control circuit transformer is overloaded 

2. Low line voltage to compressor  

Yellow “ALERT” 

Flash Code 9 

Low Voltage 

Control circuit < 18VAC 

Yellow “ALERT” 

Flash Code 5 

Open Circuit 

Yellow “ALERT” 

Flash Code 8 

Welded Contactor 

Compressor always runs 

Yellow “ALERT” 

Flash Code 6 

Missing Phase 

LOCKOUT 

Locked Rotor 

LOCKOUT 

Yellow “ALERT” 

Flash Code 4