59
6. Over or under pressure protection: this protection is a pilot
protection for the "over or under pressure error". When the power
pressure is too high or too low but not so high or so low to reach limit
for shutting down (within 165V-265V), it would limit and lower the
frequency first to reduce the air conditioner's needs for the power to
keep teh air conditioner running. This protection is for the adaption to a
unstable power environment and when there is such protection prompt,
it usually means it is possible for "OVP and UVP error" and the
maintenance personnel shall especially note.
7. Cooling overload protection, indoor high temperature heating
protection and indoor coolign freezing protection are also possible
related to the drift of the resistance value of the sensor.
(28) Troubleshooting Guide on Category-L Failures (Subdivided Failures)
Category-L failures are actually the subdivided failures of F1. For the convenience of
fast troubleshooting in the after-sales service, the actual troubleshooting methods are
consistent with F1.
No.
Failure Code
Failure Name
Primary Troubleshooting Parts
1
L0
DC Over/Under-voltage Failure
Outdoor unit controller / power grid
2
L1
Overcurrent Protection on Phase
Current of Compressor
Outdoor unit controller / power grid /
compressor / compressor wire
3
L2
Out-of Step Failure of Compressor
Outdoor unit controller / power grid /
compressor / system pressure
4
L3
Phase Failure of Compressor
Outdoor unit controller / power grid /
compressor / compressor wire
5
L4
Driver Module IPM Failure of
Compressor
Outdoor unit controller / power grid /
compressor
6
L5
PFC Overcurrent Hardware Protection Outdoor unit controller / power grid
7
L6
PFC Overcurrent Software Protection
Outdoor unit controller / power grid
8
L7
AD Abnormal Protection in Current
Detection
Outdoor unit controller
9
L8
Shunt Resistance Imbalance Failure
Outdoor unit controller
10
L9
IPM Temperature Sensor Failure
Outdoor unit controller
11
LA
Compressor Startup Failure
Outdoor unit controller / power grid /
compressor / compressor wire
12
LC
AD Abnormal Protection in PFC
Current Detection
Outdoor unit controller
Summary of Contents for ASW-H09B5B4/FAR3DI-C3
Page 1: ...AUX Imp Exp Company Limited F Freedom Inverter Split Type Air Conditioner ...
Page 2: ...This manual is for professional maintenance personnel only ...
Page 7: ...4 2 2 Outdoor Unit 1 3P 1 8P 新 2P 2 3P ...
Page 17: ...14 5 Electrical Part 5 1 Wiring Diagram Indoor Unit 09K 12K 18K 24K Outdoor Unit 09K 12K ...
Page 18: ...15 18K 24K ...
Page 19: ...16 Part II Installation and Maintenance 6 Main Tools for Installation and Maintenance ...
Page 71: ...68 Remote Control Can Not Work Trouble shooting procedure ...
Page 72: ...69 9 Exploded Views and Parts List 9 1 Indoor Unit ...
Page 74: ...71 9 2 Outdoor Unit ...
Page 77: ...74 3 Remove air louver 4 Remove air filter 5 Remove Medium frame wiring cover ...
Page 78: ...75 6 Remove medium frame 7 Remove Control the lid 8 Remove Electric box ...
Page 79: ...76 9 Remove press plate 10 Remove component 11 Remove pipe clamp ...
Page 80: ...77 12 Remove evaporator 13 Remove the blade 14 Remove Motor press plate ...
Page 81: ...78 15 Remove Motor 10 2 Outdoor Unit Part Procedure Diagram 1 Outdoor unit ...
Page 82: ...79 2 Remove top cover 3 Remove control box cover ...
Page 83: ...80 4 Remove panel grille 5 Remove front panel ...
Page 84: ...81 6 Remove E part cover 7 Remove right side panel ...
Page 85: ...82 8 Remove axial flow blade 9 Remove outer motor ...
Page 86: ...83 10 Remove electric box assy 11 Remove motor support ...
Page 87: ...84 12 Remove reactor 13 Remove partition board ...
Page 88: ...85 14 Remove left side support plate 15 Remove pipeline assembly ...
Page 89: ...86 16 Remove stop valve assembly 17 Remove valve plate ...