Daikin VRV Inverter K Series - 3.22 Malfunction of Transmission Between Indoor and Outdoor Units in the Same System; 3.25 Refrigerant System not set, Incompatible Wiring;Piping

SiE-05C Troubleshooting
Troubleshooting PLUS Series 305
3.6 Outdoor Unit: Malfunction of Moving Part of Electronic Expansion Valve (Y1E)
Remote Controller
Display
EE
EE
99
99
Supposed Causes  Defect of moving part of electronic expansion valve
 Defect of outdoor unit PC board (A1P)
 Defect of connecting cable
Trobleshooting Troubleshooting the outdoor unit for which the HWL is lit in accordance with the following flow chart.
∗1 Coil check method for the moving part of the electronic expansion valve Disconnect the electronic
expansion valve from the PC board and check the continuity between the connector pins.
(Normal)
: Continuity Approx. 300Ω
: Continuity Approx. 150Ω
x: No continuity
YES
YES
YES
After connecting, turn the
power off and then back on
again.
Replace the moving part of
the electronic expansion
valve.
Replace the connecting
cable.
Replace outdoor unit PC
board.
INV outdoor unit : EC1
Constant speed outdoor unit :
A1P
Electronic
expansion valve is
connected to X12A of outdoor
unit PC board
(A1P).
Normal
when coil check
(∗1) of the moving part of
the electronic expansion
valve is checked.
The
connecting cable
is short-circuited or
disconnected.
NO
NO
NO
(VF140)
Pin No. 1White 2Yellow 3Orange 4Blue 5Red 6Brown
1 White x  x  x
2 Yellow x  x 
3 Orange x  x
4 Blue x 
5 Red x
6 Brown
SI-05C.BOOK Page 305 Monday, November 6, 2000 4:13 PM
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