U9" Malfunction Of Transmission Between Indoor And Outdoor Units In The Same System - Daikin VRVIII-S Service Manual

SiENBE34-703
3.43 "U9" Malfunction of Transmission between Indoor and
Outdoor Units in the Same System
U9
remote control
Display
Applicable
AII indoor unit models
Models
Method of
Malfunction
Detection
Malfunction
Decision
Conditions
Supposed ! Malfunction of transmission within or outside of other system
! Malfunction of electronic expansion valve in indoor unit of other system
Causes
! Defect of PC board of indoor unit in other system
! Improper connection of transmission wiring between indoor and outdoor unit
Troubleshooting
Troubleshooting by Indication on the remote control
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