
104
16.3.9 High temperature protection of compressor top diagnosis and solution (P2)
Error Code
P2
Malfunction
decision
conditions
If the sampling voltage is not 5V, the LED will display the failure.
Supposed causes
●
Power supply problems.
●
System leakage or block
●
PCB faulty
Trouble shooting:
Check the air flow system
of indoor and outdoor units.
Does a problem exist?
Clear up the air inlet and outlet or the heat
exchanger of the indoor and outdoor units.
Yes
No
Yes
Yes
Power off and then restart the unit
10 minutes afterwards
Check compressor
temperature. Is it within
acceptable parameters?
No
Check the refrigerant
system. Is it functioning
properly?
Yes
Check the overload
protector. Is it properly
wired?
Ensure a proper
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
Содержание 38QUA009DS
Страница 8: ...5 2 2 Part names of Indoor Outdoor units Cassette Unit...
Страница 9: ...6 A5 Ducted Units A6 Ducted Units...
Страница 10: ...7 Floor ceiling Units...
Страница 11: ...8 HESP DUCTED Units...
Страница 35: ...32 6 Wiring Diagram 6 1 Indoor Unit 40QTD018DS 40QTD024DS 40QTD036DS 40QTD048DS...
Страница 36: ...33 40QSM018DS 40QSM024DS 40QSM036DS 40QSM048DS...
Страница 37: ...34 40QZL018DS 40QZL024DS 40QZL036DS...
Страница 38: ...35 40QZL048DS 40QZL060DS...
Страница 40: ...37 6 2 Outdoor Unit 38QUA018DS 38QUA024DS...
Страница 41: ...38 38QUA036DS...
Страница 42: ...39 38QUA048DS 38QUA060DS...
Страница 44: ...41 40QSM018DS Code 0 Code 1 Code 2 Code 3 Code 4...
Страница 45: ...42 40QSM024DS Code 0 Code 1 Code 2 Code 3 Code 4...
Страница 46: ...43 40QSM036DS Code 0 Code 1 Code 2 Code 3 Code 4...
Страница 47: ...44 40QSM048DS Code 0 Code 1 Code 2 Code 3 Code 4...
Страница 60: ...57 12 Field Wiring 18K 24K 36K 48K...
Страница 61: ...58 60K...
Страница 104: ...101 P U P V...
Страница 105: ...102 P W P N...