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105
Check if the air flow system
of indoor and outdoor units
are obstructed?
Clear up the air inlet and outlet or the heat
exchanger of indoor and outdoor units.
Yes
No
Yes
Yes
Turn off the power supply and turn
it on 10 minutes later.
Check if the temperature of
compressor Top
Is more than 90
℃?
No
Check if the refrigerant
system
is normal?
Repair the refrigerant
system .
Replace the outdoor control PCB.
Yes
Check if all the connection, especially
the connection of OLP (Over Load
Protector) sensor is good.
Correct the connection.
No
Measure the resistance
between the two ports of
the OLP. Is it zero?
Yes
Replace the OLP.
No
Replace the outdoor control PCB.
Yes
No
)
PC 02
/
0
(ODU P
Top temperature protection of compressor
3
18.3.3.1
Summary of Contents for 42QHE09D8SH
Page 1: ...SUPER INVERTER SERIES MULTI TYPE Service Manual ...
Page 21: ...18 4 5 6 Easy operation 4 5 7 Remote control and optional wired control method ...
Page 25: ...22 5 4 Console 16 Drain pipe 195 Hanging arm 700 600 210 N A ...
Page 29: ...25 6 Service Space unit mm 6 1 Four way cassette compact 6 2 Four way cassette super slim ...
Page 31: ...27 6 5 Under Ceiling 6 6 Hi wall Cool Easy 18C AG ...
Page 32: ...Specifications 7 Electrical Wiring Diagrams 7 1 Indoor unit A6 Duct type 7K 9K ...
Page 33: ...Specifications 12K 18K 24K ...
Page 34: ...Specifications Page 67 Compact Cassette type 7K 9K ...
Page 35: ...Specifications Page 68 12K ...
Page 36: ...Specifications Page 69 18K ...
Page 37: ...Specifications Page 69 24K ...
Page 38: ...Specifications Page 70 Wall mounted type 18C 7K 9K 12K 18K ...
Page 39: ...Specifications Page 71 18C 24K ...
Page 42: ...Specifications Page 81 21K 27K 16022000035910 ...
Page 44: ...Specifications Page 78 36k ...
Page 45: ...Specifications Page 79 42k ...
Page 55: ...Specifications 14K 18K s n o i s n e m i D 3 1 ...
Page 56: ...Specifications 21K 27K ...
Page 57: ...Specifications 28K 36K 42K ...
Page 81: ...83 EC 50 Open or short circuit of outdoor unit temperature sensor T3 T4 T5 ...
Page 112: ......