Haier H-MRV Series Service Manual page 191

8.
Models with wired controller
Readout: E9
Description: Transmission error with outdoor unit (an alarm will be given 4 minutes after the appliance is
started.)
Check if there is repetition in the
indoor unit address IDs.
No
Check if the transmission line is short-
circuit or open-circuit; if the shield wires at
both ends of transmission line are earthed
properly; if the earth wire of outdoor unit is
properly earthed.
No
Disconnect the indoor unit transmission lines
from the control panel and connect them to
the outdoor unit. Check if the number of
indoor units is steady through the outdoor
unit mainboard or the test kit.
No
Check if the transmission resistor and
capacitor in indoor unit mainboard are in
good condition. See flow chart of
troubleshooting for outdoor unit.
>a__WcU[S^ <[c >a`V[e[a`Wc
Models with wireless remote controller
4 flashes of Timer light
-191-