Sanyo SPW-C483GYH8 Service Manual page 161

1. Troubleshooting
(2) Symptom: LCD on the remote controller displays "CHECK E01". (Unusual communication between remote
1
For only 1 system (outdoor unit system address 0)
¶ The first time you switch on the power for the outdoor units after installation, "SETTING" blinks on the
remote controller and the system enters automatic address operation, but if the outdoor unit power is not on
or the indoor / outdoor operation line is not connected, the automatic operation can not be executed, so the
indoor unit non-volatile memory system address, indoor unit address, or group address remains unset
(0099). If you press the remote controller ON / OFF operation button with the system in this state, "Fan
speed" is displayed and an alarm is displayed.
2
For multiple systems with the indoor/outdoor operation lines linked (outdoor unit system address other than 0)
¶ After the indoor and outdoor unit power is switched on, if you do not carry out the automatic address setting
operation with the remote controller or the outdoor unit, the same alarm is displayed.
3
After the automatic address setting has been completed
Remote controller judged with
self-diagnostic functions
3
Is there a cut line or a contact
defect in the No. 1 line of the
remote controller?
Is the indoor unit PCB's non-volatile
memory IC setting ("CHECK F29"
displayed) wrong?
Is the indoor unit PCB's inspection
pin shorted?
controller and indoor unit, or R.C. address, indoor unit address, or group address in indoor unit non-
volatile memory are not set.
Start
Yes
No
No
No
Replace the indoor unit PCB.
No
Replace the remote controller.
Yes
Correct the wiring.
Yes
Correct the setting.
Yes
Open the inspection pin.
III - 12
Service Procedures
0333_M_I
SM830052