Transmission Error Between Main Remote Controller And Sub Remote Controller - Daikin ZQG71~140L7V1B Service Manual

ESIE12-06
4.34 Transmission Error between MAIN Remote Controller
and SUB Remote Controller
U8
Remote
Controller
Display
Applicable
All models of indoor units
Models
Method of Error
In case of controlling with 2- remote controller, check the system using micro-computer if signal
Detection transmission between indoor unit and remote controller (main and sub) is normal.
Error Decision
The error is generated when, in case of controlling with 2 remote controllers, the micro-
Conditions processor detects that the transmission between the indoor unit and the remote controllers
(MAIN and SUB) is not normal over a certain amount of time.
Supposed
 Setting failure with remote controller
Causes  Connection among SUB remote controllers
 Defective remote controller PCB
 Disconnection of remote controller wiring
Troubleshooting
Caution Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred.
Controlling with
2-remote controller
YES
Both SS-1
switches on remote controllers
are turned to SUB
YES
Service Diagnosis
SS-1 switch
NO
on remote controller PCB is
turned to MAIN
YES
Is there
NO
continuity in remote controller
wiring?
NO
Troubleshooting by Remote Controller
NO
Turn the SS-1 switch of one
remote controller to MAIN.
Turn OFF the power supply, and
restart operation.
YES
Turn OFF the power once and
restart operation.
Replace the remote controller
PCB if any error is generated.
Replace the remote controller
wiring.
Turn the SS-1 switch of one
remote controller to MAIN.
Turn OFF the power supply, and
restart operation.
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