Haier AU96NFTAHA Service Manual page 89

A
Whether the
indoor fan is normal
(heat)
Yes
Whether
indoor PMV is normal
Yes
Whether
there is the factor
affecting indoor heat
exchange
1. Filter screen is blocked
2.Heat exchanger is blocked
3.Airflow is in short
circuit
No
Whether the indoor
and outdoor communication
line is normal
Yes
The refrigerant is overfed,refrigerant pipe is bent,abnormal overloading
No
connection of the connectors,
capacitor and fan motor are
No
Whether connecting
winding connection
of the connectors are
normal
Yes
Whether the
valve body is blocked
No
No
resistance value/temperature
characteristic of TC2 sensor
Check indoor PCB, ifimproper, replace it
86
Whether the
No
normal
Yes
No
Yes
Whether the
No
is normal
Yes
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Modifying improper
portion
Modifying improper
portion
Eliminate interference
factor
Replace PMV main
body
Check and modify
wiring
Replace TC2 sensor