Service manual

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10-7-2. Miswiring (Mis-piping) Check by LED Indication

• For this outdoor unit, self-miswiring (mis-piping) checks are possible using the five LEDs (1 Yellow + 4 Red).

• LEDs (D800 to D804) are provided on the inverter P.C. board.

Fig. 10-7-2

LED

During check

Check results

D800 D801 D802 D803 D804

lllll

¥¥

lll

¤¤

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Description

Normal operation (no error)

Checking A unit

Checking B unit

Checking C unit

Crush/Clog of pipe A

Crush/Clog of pipe B

Crush/Clog of pipe C

Miswiring/Mis-piping or Crush/Clog of pipe A, B

Miswiring/Mis-piping or Crush/Clog of pipe A, C

Miswiring/Mis-piping or Crush/Clog of pipe B, C

A, B, C Miswiring/Mis-piping

LED : Light Emitting Diode,

: LED ON,

: LED OFF,

: LED Flash

Check mode

Normal operation

Short → Open

Short

Yellow

Red

Miswiring (mis-piping)

check connector (color: Red)

D800D801D802D803D804

LED