Daikin VRV RXYMQ-A Series Service Manual page 204

Troubleshooting by Error Code
Reference
CHECK 1 Refer to page 271.
Reference
CHECK 12 Refer to page 284.
198
A
CHECK 12
Service Checker
Connect the service checker, and then compare the high pressure value
measured by the service checker with the voltage measurement of the
connector of the pressure sensor ( 1)
Are both
NO
pressure values the
same?
YES
-The high pressure sensor is normal, and outdoor unit main PCB is also
normal.
-The high pressure has really become high.
CHECK 1 Eliminate factors that cause the high pressure to rise.
SiME332106E
Replace the outdoor unit
main PCB (A1P).
Part 6 Service Diagnosis