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94
For 36K-48K:
Malfunction
conditions
Indoor unit does not receive feedback from outdoor unit for 60
seconds OR outdoor unit does not receive feedback from indoor unit
for 120 seconds.
Possible causes
●
Wiring mistakes
●
Faulty indoor or outdoor PCB
Communication malfunction between indoor
and outdoor units
Communication malfunction between indoor
and outdoor units
E1 displayed
E1 displayed
No
Power off, then restart the unit 2
minutes later. Does a problem still
exist?
Power off, then restart the unit 2
minutes later. Does a problem still
exist?
Adopt shield cable/shield
cable earthing
Adopt shield cable/shield
cable earthing
No
Yes
Yes
Remove interference or
add magnet ring on power
wire
Remove interference or
add magnet ring on power
wire
Yes
Replace the signal wire
Replace the signal wire
Yes
Pull out and insert back
Pull out and insert back
No
No
Replace the indoor main PCB, is the
error resolved?
Replace the indoor main PCB, is the
error resolved?
Yes
Replace the outdoor Main PCB.
Replace the outdoor Main PCB.
No
Is there any interference such
as too many lamps, power
transformers? Or is the signal
wire too long?
Is there any interference such
as too many lamps, power
transformers? Or is the signal
wire too long?
Is the signal wire a shield cable
and is the shield cable a
earthing?
Is the signal wire a shield cable
and is the shield cable a
earthing?
Is the signal wire is broken?
Is the signal wire is broken?
Are the signal wires properly
inserted on PCB?
Are the signal wires properly
inserted on PCB?
Summary of Contents for 38QUA009DS
Page 8: ...5 2 2 Part names of Indoor Outdoor units Cassette Unit...
Page 9: ...6 A5 Ducted Units A6 Ducted Units...
Page 10: ...7 Floor ceiling Units...
Page 11: ...8 HESP DUCTED Units...
Page 35: ...32 6 Wiring Diagram 6 1 Indoor Unit 40QTD018DS 40QTD024DS 40QTD036DS 40QTD048DS...
Page 36: ...33 40QSM018DS 40QSM024DS 40QSM036DS 40QSM048DS...
Page 37: ...34 40QZL018DS 40QZL024DS 40QZL036DS...
Page 38: ...35 40QZL048DS 40QZL060DS...
Page 40: ...37 6 2 Outdoor Unit 38QUA018DS 38QUA024DS...
Page 41: ...38 38QUA036DS...
Page 42: ...39 38QUA048DS 38QUA060DS...
Page 44: ...41 40QSM018DS Code 0 Code 1 Code 2 Code 3 Code 4...
Page 45: ...42 40QSM024DS Code 0 Code 1 Code 2 Code 3 Code 4...
Page 46: ...43 40QSM036DS Code 0 Code 1 Code 2 Code 3 Code 4...
Page 47: ...44 40QSM048DS Code 0 Code 1 Code 2 Code 3 Code 4...
Page 60: ...57 12 Field Wiring 18K 24K 36K 48K...
Page 61: ...58 60K...
Page 104: ...101 P U P V...
Page 105: ...102 P W P N...