Malfunction Of Transmission Between Remote Controller And Indoor Unit - Daikin VRV K Manual

SI-95.BOOK Page 105 Friday, March 31, 2000 10:59 AM
Si-95

2.29 Malfunction of Transmission Between Remote Controller and Indoor Unit

U U U U 5 5 5 5
Remote Controller
Display
I Malfunction of indoor unit remote controller transmission
Supposed Causes
I Connection of two "main" remote controllers (when using 2 remote controllers)
I Defect of indoor unit PC board
I Defect of remote controller PC board
I Malfunction of transmission caused by noise
Troubleshooting
Troubleshooting Inverter K Series
Using
YES
2-remote controllers
control.
NO
All indoor
NO
PC board microcomputer
monitors blink.
YES
Multi-core
YES
cable is used for the indoor
unit remote controller
transmission
wiring.
NO
SS1
YES
of both remote controllers is
Set one remote controller to
set to "MAIN."
"SUB"; turn the power supply off
once and then back on.
NO
Operation
returns to normal when the NO
Replace indoor unit PC board.
power is turned off
momentarily.
YES
There is possibility of malfunction
caused by noise. Check the
surrounding area and turn on
again.
Switch to double-core independent
cable. replacement
Defect of remote controller PC
board or indoor unit PC board.
Replace whichever is defective.
Troubleshooting
(VF055)
105