Compressor Lock - Daikin CTX Series Service Manual

Troubleshooting

4.12 Compressor Lock

E6
Error Code
Description

Compressor lock.

Method of Error A compressor lock is detected by checking the compressor running condition through the
Detection position detection circuit.
 If the error repeats, the system is shut down.
Error Decision
 Reset condition: Continuous run for about 11 minutes without any other error.
Conditions
 Closed stop valve
Supposed
 Compressor locked
Causes
 Disconnection of compressor harness
Troubleshooting
Reference
Check No.12 Refer to P.86
68
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.
Caution
YES
Stop valve closed?
NO
Turn off and turn on the power
to restart the system
Emergency
YES
stop without compressor
running?
NO
System shut
NO
down after errors repeated
several times?
YES
DAMA-SM-21-003
Open the stop valve.
Replace the compressor. /
outdoor unit PCB (main PCB)
Check the electronic expansion
valve coil. Go to Check No. 12.
Replace the compressor. /
outdoor unit PCB (main PCB)
Service Diagnosis