“E7” Dc Fan Lock - Daikin Altherma EKHBH Series Service Manual

Error Codes: Outdoor Units
"E7" DC Fan Lock
3.5
1
Error code
Method of
malfunction
detection
Malfunction
decision conditions
3 3
Supposed causes
4
Troubleshooting
5
Caution
3–16
E7
A fan motor or related error is detected by checking the high-voltage fan motor rpm being detected by
the Hall IC.
The fan does not start in 30 seconds even when the fan motor is running.
The system will be shut down if the error occurs 16 times.
Clearing condition: Continuous run for about 5 minutes (normal)
Fan motor breakdown
Harness or connector disconnected between fan motor and PCB or in poor contact
Foreign matters stuck in the fan
Fan motor connector
disconnected?
NO
Foreign matters in or
around the fan?
NO
Get started.
Check No. 15
Check the outdoor unit PCB rpm
pulse input.
Pulse signal inputted?
YES
See also: "Check No.15" on page 3-63
Be sure to turn off power switch before connect or disconnect connector, or parts damage may be
occurred.
YES
YES
NO
ESIE06-03
Turn off the power and reconnect
the connector.
Remove.
Replace the outdoor unit fan
motor.
Replace the outdoor unit PCB.
Part 3 – Troubleshooting