Daikin VRVII Manual page 156

Troubleshooting by Indication on the Remote Controller
Troubleshooting
Caution
Check the fan motor corresponding to the error code "H7" in the
monitor mode.
When check 3 shows as follows:
When check 3 shows as follows:
Identify outdoor unit based on Check 4.
Explanation for "
Turn the power supply
OFF.
Check if
signal wire
connector for the
corresponding fan
motor is
normal.
YES
A
Be sure to turn off the power switch before
connecting or disconnecting connectors, or parts
may be damaged.
→
Fan motor 1 (M1F)
→
Fan motor 2 (M2F)
"
NO
Master unit
Slave unit 1
Slave unit 2
System
Ensure correct
the connection.
151