152
16.4.5 Refrigerant Leakage Detection diagnosis and solution (EC)
Error Code
EC
Malfunction conditions
Define the evaporator coil temperature T2 of the compressor
starts running as Tcool.
If the following occurs 3 times, the display shows "EC" and the
unit switches off:
In the first 8 minutes after the compressor starts up, if T2
<
Tcool
-
2
℃
is not maintained for 4 seconds and compressor
running frequency is not higher than 50Hz for 3 minutes
Potential Causes
●
Faulty T2 sensor
●
Faulty indoor PCB
●
System problems, such as leakage or blockages
Trouble shooting:
Is there cool air blowing
out from indoor air outlet?
Yes
Yes
Check the T2
sensor. Is it
securely attached?
No
Check system for leakages.
Are any leakages present?
No
Power off, then restart the
unit 2 minutes later. Does a
problem still remain?
Replace the indoor
PCB
Yes
Repair the leakage and
recharge the refrigerant
Yes
Check System for blockages
and clear blockages if present
Summary of Contents for KDIP012-H2
Page 8: ...5 2 2 Part names of Indoor Outdoor units Cassette Units ...
Page 9: ...6 KDIR Duct Units ...
Page 10: ...7 KDIP Duct Units ...
Page 11: ...9 Ceiling floor Units ...
Page 12: ...10 HESP DUCT Units ...
Page 19: ...19 2 3 4 7 Outside Water Pump for Optional When Ceiling Installation ...
Page 31: ...33 KSIE024 H220 O KSIR036 H218 inch 37 2 16 1 31 9 40 6 26 5 15 9 ...
Page 34: ...36 Ceiling floor Units ...
Page 39: ...41 KTIR036 H2G1 KTIR048 H2G1 ...
Page 40: ...43 KUIR18 H2 KUIR24 H2 ...
Page 41: ...44 KFUF036 H2G1 KFUF048 H2G1 ...
Page 42: ...45 KFUF060 H2G1 ...
Page 43: ...46 KFUF036 H2G1 KFUF048 H2G1 ...
Page 44: ...47 KDIP090 H2 KDIP012 H2 KDIP018 H2 KDIP24 H2 ...
Page 69: ...74 6 2 Outdoor Unit KSIE018 H220 O KSIE024 H220 O ...
Page 70: ...75 KSIE009 H221 O KSIE012 H220 O ...
Page 71: ...77 KSIR036 H218 ...
Page 77: ...83 KDIR09 H2 Code 0 Code 1 Code 2 Code 3 Code 4 ...
Page 78: ...84 KDIR12 H2 Code 0 Code 1 Code 2 Code 3 Code 4 ...
Page 79: ...85 KDIR18 H2 Code 0 Code 1 Code 2 Code 3 Code 4 ...
Page 80: ...86 KDIR24 H2 Code 0 Code 1 Code 2 Code 3 Code 4 ...
Page 96: ...104 12 Field Wiring 9K 24K 36K 48K 60K ...
Page 97: ...105 ...
Page 147: ...155 P U P V ...
Page 148: ...156 P W P N ...
Page 181: ...191 4 Remove the evaporator fixing clamps to disassemble the evaporator Fixing clamps 1 screw ...
Page 188: ...221 5 Remove the four fixing screws of the fan motor then remove the motor 5 ...