Remote Controller (U5); Malfunction Of Transmission Between Main Remote Controller; And Sub Remote Controller - Daikin R-410A Service Manual

ESIEN05-04
1.4 Malfunction of Transmission between MAIN remote control
and SUB remote control (U8)
U8
Error code
Error generation The error is generated when, in case of controlling with two remote controls, the microprocessor
detects that the transmission between the indoor unit and the remote controls (MAIN and SUB) is not
normal over a certain amount of time.
Causes The possible causes are:
Troubleshooting
Caution Be sure to turn off power switch before connect or disconnect connector, or parts damage may be
occurred.
Part 3 – Troubleshooting
Transmission error between MAIN remote control and SUB remote control
Connection among SUB remote controls
Malfunctioning remote control PCB.
NO
Controlling with
2-remote controller
YES
Both SS-1
switches on remote
controllers are turned
to SUB
YES
SS-1 switch
on remote controller
PCB is turned
to MAIN
YES
NO
Error Codes: System Malfunctions
NO
Turn the SS-1 switch of one
remote controller to MAIN.
Turn OFF the power supply,
and restart operation.
Turn OFF the power once and
restart operation.
Replace remote controller PCB
if any error is generated.
Turn the SS-1switch of one
remote controller to MAIN.
Turn OFF the power supply,
and restart operation.
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