>a__WcU[S^ <[c >a`V[e[a`Wc
6) Sensor failure
check if the wiring is
correct according to
wiring diagram
if sensor is fixed
well
Relocate
reconnect
no
Is sensor short-circuit
or open-circuit?
Replace sensor
Is sensor resistance
acceptable?
Replace sensor
Is DC voltage between
both ends of sensor
near 5V or 0V?
Replace PCB
yes
yes
yes
yes
no
no
no
An external alarm is
identified according to the
list of fault codes
no
7) External alarm
Is an external alarm
connected to the system?
Is ALARM terminal in
mainboard disconnected?
yes
Short connect that
terminal
Solve problem
accordingly
yes
if failure disappear after
PCB is changed
yes
no
replace PCB
-298-
Summary of Contents for AB092ACBHA
Page 47: ... a__WcU S c a V e a Wc AU88NATBEA 66 33 1 23 4 43 33 61 2 3 160 2 15 3 52 47 ...
Page 235: ... N2 4 C N344 C J eab d VW bc eWV V SYcS_ a__WcU S c a V e a Wc 235 ...
Page 236: ... a__WcU S c a V e a Wc N2 4 C N344 C J Taeea_ d VW bc eWV V SYcS_ 236 ...
Page 238: ... N364 A D N3 4 A E J eab d VW bc eWV V SYcS_ a__WcU S c a V e a Wc 238 ...
Page 239: ... N364 A D N3 4 A E J Taeea_ d VW bc eWV V SYcS_ a__WcU S c a V e a Wc 239 ...
Page 241: ... N464 C D J eab d VW bc eWV V SYcS_ a__WcU S c a V e a Wc 241 ...
Page 242: ... N464 C D J Taeea_ d VW bc eWV V SYcS_ a__WcU S c a V e a Wc 242 ...
Page 244: ... N364 A N3 4 A J eab d VW bc eWV V SYcS_ a__WcU S c a V e a Wc 244 ...
Page 245: ... N364 A N3 4 A J Taeea_ d VW bc eWV V SYcS_ a__WcU S c a V e a Wc 245 ...
Page 247: ... a__WcU S c a V e a Wc AU242AHBEA AU282AHBEA PCB top side printed diagram 247 ...
Page 248: ... a__WcU S c a V e a Wc AU242AHBEA AU282AHBEA PCB bottom side printed diagram 248 ...
Page 250: ... a__WcU S c a V e a Wc AU28NAHBEA AU36NAIBEA AU42NAIBEA PCB top side printed diagram 250 ...
Page 251: ... a__WcU S c a V e a Wc AU28NAHBEA AU36NAIBEA AU42NAIBEA PCB bottom side printed diagram 251 ...
Page 253: ... a__WcU S c a V e a Wc AU52NAIBEA PCB top side printed diagram 253 ...
Page 254: ... a__WcU S c a V e a Wc AU52NAIBEA PCB bottom side printed diagram 254 ...
Page 256: ... a__WcU S c a V e a Wc AU88NATBEA PCB top side printed diagram 256 ...
Page 257: ... a__WcU S c a V e a Wc AU88NATBEA PCB bottom side printed diagram 257 ...
Page 272: ... a__WcU S c a V e a Wc Indoor units except for AP18 AP88 PCB printed diagram 272 ...
Page 278: ... a__WcU S c a V e a Wc Cabinet indoor units PCB circuit diagram 278 ...
Page 279: ... a__WcU S c a V e a Wc Cabinet indoor units PCB printed diagram 279 ...
Page 343: ... a__WcU S c a V e a Wc 14 Air volume and external static pressure curves 343 ...
Page 364: ...MEMO Commercial Air Conditioner ...