Daikin VRV Inverter K Series Manual page 156

SI-05C.BOOK Page 142 Monday, November 6, 2000 4:13 PM
Troubleshooting
3.17 Outdoor Unit: Malfunction of Moving Part of Electronic Expansion Valve (Y1E)
E E E E 9 9 9 9
Remote Controller
Display
Supposed Causes
Troubleshooting
∗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)
1. White
2. Yellow
3. Orange
4. Blue
5. Red
6. Brown
: Continuity Approx. 300Ω
: Continuity Approx. 150Ω
x: No continuity
142
Defect of moving part of electronic expansion valve
Defect of outdoor unit PC board (A1P)
Defect of connecting cable
Electronic
expansion valve is
NO
connected to X12A of outdoor
unit PC board
(A1P).
YES
Normal
when coil check (∗1)
NO
of the moving part of the
electronic expansion
valve is checked.
YES
YES
The connecting cable
is short-circuited or
disconnected.
NO
Pin No. 1. White 2. Yellow
x
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 A1P.
3. Orange 4. Blue 5. Red
x
x
x
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Troubleshooting Inverter K Series
SiE-05C
(VF043)
6. Brown
x
x
x
x
x