58
How to check mis-wiring
N
(Only SEZ-A09CR.W, SEZ-A12AR.TH) ERROR CODE “6800” displays on remote controller.
Outdoor unit doesn’t operate.
Check if there is amplitude of 5 to 10V DC between
outdoor terminal block
N
and
3
(for confirmation of serial
signal) and if there is 230V AC between
2
and
N
.
· Turn OFF inverter-controlled lighting equipment.
· Turn OFF the power supply and then turn ON again.
· Press the TEST button twice.
w
Short circuit of JPG and JPS on the indoor
controller board enables self-check to be
displayed in 3 seconds.
As for indoor unit SEZ type, refer to service manual OC303.
Is there voltage approximate 280V DC between
LD61A (+) and LD66A (–) on the inverter P.C.
board arter 3 minutes?
Is mis-wiring indicated when the contactor (52C) on
the indoor controller board turns ON 3 minutes later?
Turn OFF the power supply and then turn ON
again.
Press the TEST button twice.
After 3 minutes, is there approximate 230V AC
between outdoor terminal block
2
and
N
?
w
2 Replace the inverter P.C.
board.
Replace the indoor/ outdoor connecting wire.
1. Turn OFF the power supply.
2. Disconnect the connector (CN61) between the
compressor and the power transistor module.
3. Turn ON the power supply.
4. Press the TEST button twice.
No
Yes
No
Yes
Yes
No
· Reinstall either the unit or the
light each other away.
· Exchange the indoor controller
board.
w
2 Be careful to the residual voltage of smoothing capacitor.
Start
No
• Turn ON the power supply.
• Press once TEST button twice.
Is there any mis-wiring, poor contact,
or wire disconnection?
w
2
Make them sure.
Yes
After 3 minutes, mis-wiring is indicated
(0.5-second ON, 0.5-second OFF) on
OPERATION lamp on remote controller.
w
[SUZ-A09VR.TH SUZ-A12VR.TH]
OC304A --2qxp 04.6.29 8:34 AM Page 58
