Sanyo Big PACi 18 Series Technical Data & Service Manual page 227

HIC-C1155GDXH8
(706, 906 Types)
5
(3) [Alarm "E31"]
(communications trouble at unit)
HIC W V
Resistance
Between terminals
HIC + HIC –
U
HIC +
HIC + V
HIC +
W
HIC –
U
HIC –
V
HIC –
W
Is "E31"
No
displayed even after
the power voltage
is reset?
Yes
Replace outdoor unit
control PCB.
U HIC +
Resistance
200 k or more
300 k or more
300 k or more
300 k or more
200 k or more
200 k or more
200 k or more
5-10
Normal