Daikin VRV Inverter K Series Manual page 149

SI-05C.BOOK Page 135 Monday, November 6, 2000 4:13 PM
SiE-05C
3.6 Indoor Unit: Malfunction of Moving Part of Electronic Expansion Valve (Y1E)
A A A A 9 9 9 9
Remote Controller
Display
Supposed Causes
Troubleshooting
∗1: Coil check method for the moving part of the electronic expansion valve
(Normal)
1. White
2. Yellow
3. Orange
4. Blue
5. Red
6. Brown
: Continuity
x: No continuity
Troubleshooting Inverter K Series
Malfunction of moving part of electronic expansion valve
Defect of indoor unit PC board
Defect of connecting cable
The electronic
NO
expansion valve is connected
to X7A of the indoor unit
PC board.
YES
Normal
when coil check (∗1) of
NO
the moving part of the electronic
expansion valve
is checked.
YES
The connecting
YES
cable is short-circuited or
disconnected.
NO
Pin No. 1. White 2. Yellow
x
After connecting, turn the power supply
off and then back on.
Replace the moving part of the
electronic expansion valve.
Replace the connecting cable.
If you turn the power supply off and
turn on again, and it still does not help,
replace the indoor unit PC board.
3. Orange 4. Blue 5. Red
x
Approx. 300Ω Approx. 150Ω
x
Approx. 300Ω
x
Approx. 150Ω
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Troubleshooting
(VF033)
6. Brown
x
x
Approx. 150Ω
x
x
Approx. 150Ω
x
135