Daikin VRV RXYMQ-A Series Service Manual page 219

SiME332106E
Troubleshooting
Note(s)
OL (Q1M) activating temperature: 125°C
OL (Q1M) recovery temperature: 110°C
1. RXYMQ4AVMK: X3A
Reference
CHECK 11 Refer to page 281.
Part 6 Service Diagnosis
Be sure to turn off the power switch before connecting or disconnecting
Caution
connectors, or parts may be damaged.
Discharge pipe
thermistor disconnected?
NO
CHECK 11
Check the discharge pipe
thermistor.
OK
Is the OL connector
( 1) properly connected?
YES
Disconnect the connector ( 1)
from the PCB.
Check the
resistance between
the 2 terminals on the
connector ( 1) .
Resistance f
Disconnect the 2 terminals of
the OL (Q1M).
Check the
resistance between the
2 terminals of the OL
(Q1M).
Resistance f
RXYMQ4-6AYFK: X5A
YES
NG
NO
Nearly 0 :
Nearly 0 :
Troubleshooting by Error Code
Insert the thermistor in
position.
Replace the discharge pipe
thermistor.
Connect the connector ( 1)
properly.
Replace the outdoor unit
main PCB (A1P).
Replace the OL harness.
Replace the OL (Q1M).
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