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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-
Содержание AB092ACBHA
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Страница 236: ... a__WcU S c a V e a Wc N2 4 C N344 C J Taeea_ d VW bc eWV V SYcS_ 236 ...
Страница 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 ...
Страница 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 ...
Страница 241: ... N464 C D J eab d VW bc eWV V SYcS_ a__WcU S c a V e a Wc 241 ...
Страница 242: ... N464 C D J Taeea_ d VW bc eWV V SYcS_ a__WcU S c a V e a Wc 242 ...
Страница 244: ... N364 A N3 4 A J eab d VW bc eWV V SYcS_ a__WcU S c a V e a Wc 244 ...
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Страница 247: ... a__WcU S c a V e a Wc AU242AHBEA AU282AHBEA PCB top side printed diagram 247 ...
Страница 248: ... a__WcU S c a V e a Wc AU242AHBEA AU282AHBEA PCB bottom side printed diagram 248 ...
Страница 250: ... a__WcU S c a V e a Wc AU28NAHBEA AU36NAIBEA AU42NAIBEA PCB top side printed diagram 250 ...
Страница 251: ... a__WcU S c a V e a Wc AU28NAHBEA AU36NAIBEA AU42NAIBEA PCB bottom side printed diagram 251 ...
Страница 253: ... a__WcU S c a V e a Wc AU52NAIBEA PCB top side printed diagram 253 ...
Страница 254: ... a__WcU S c a V e a Wc AU52NAIBEA PCB bottom side printed diagram 254 ...
Страница 256: ... a__WcU S c a V e a Wc AU88NATBEA PCB top side printed diagram 256 ...
Страница 257: ... a__WcU S c a V e a Wc AU88NATBEA PCB bottom side printed diagram 257 ...
Страница 272: ... a__WcU S c a V e a Wc Indoor units except for AP18 AP88 PCB printed diagram 272 ...
Страница 278: ... a__WcU S c a V e a Wc Cabinet indoor units PCB circuit diagram 278 ...
Страница 279: ... a__WcU S c a V e a Wc Cabinet indoor units PCB printed diagram 279 ...
Страница 343: ... a__WcU S c a V e a Wc 14 Air volume and external static pressure curves 343 ...
Страница 349: ...1 8 0 2 4 25 27 22 5 5 heating air discharge angle 45 Temperature distribution a__WcU S c a V e a Wc 349 ...
Страница 357: ...1 8 0 2 4 25 27 22 5 5 heating air discharge angle 45 Temperature distribution a__WcU S c a V e a Wc 357 ...
Страница 364: ...MEMO Commercial Air Conditioner ...