Uf" System Is Not Set Yet - Daikin ALTHERMA HT ERSQ 011 AA Service Manual

ESIE09-08A
3.62 "UF " System is not Set yet
UF
Remote Control
UF
Display
UF
Applicable Models
All models of indoor units
All models of outdoor units
Method of
Malfunction
Detection
Malfunction
The malfunction is determined as soon as the abnormality aforementioned is detected through checking
Decision Conditions the system for any erroneous connection of unit.
 Improper connection of transmission wiring between indoor-outdoor unit
Supposed Causes
 QA wiring problem
 Defect of indoor unit PC board
Troubleshooting
Note: Wiring check operation may not be successful if carried out after the outdoor unit has been off for more
than 12 hours.
Troubleshooting
subcode 6: QA wiring problem.
subcode 10: Transmission problem with outdoor unit.
Be sure to turn off power switch before connecting or disconnecting connector,
Caution
otherwise parts may be damaged.
Are
indoor - outdoor
NO
transmission wiring
and QA wiring
normal?
YES
Troubleshooting by Indication on the Remote Controller
After fixing incorrect wiring,
push and hold the RESET
button on the master outdoor
unit PC board for 5 seconds.
The unit will not run for up to
12 minutes.
Replace indoor unit PC board.
(V2830)
217