Haier AV10IMWEWA Design, Installation & Maintenance Instruction page 265

[28, 29] High/low pressure sensor failure
if sensor terminal is fixed
well
if voltage between red
terminal and black terminal
is 5V when testing pressure
sensor by multimeter
if voltage between white
terminal and black terminal
is 0.5V~3.5V when testing
pressure sensor by
replace connecting
board
[33] outdoor EEPROM failure
set BM_1 at OFF , re-
electrify , search for outdoor
again, check if failure
replace EEPROM
yes
yes
multimeter
no
disappears
no
no
reconnect
no
replace PCB
yes
replace pressure sensor
264