56
(25) P7–Anti-freezing Protection in Refrigeration Room
Explanation of
error
Cause: Protection shutdown due to temperature of indoor coil.
Inspection path: indoor air inlet
→
indoor unit filter
→
indoor motor
→
indoor coil sensor
Tools required
for inspection
Multimeter, pressure gauge, regular 20K
Ω
exhuast sensor (25
℃
)
Frequent
problematic part
Indoor coil sensor
Inspection
procedure and
key points
1. Check whether the indoor air inlet is blocked or not, if it affects the
wind, remove the shield;
2. Check whether the filter is dirty or not. If dirty blockage is found in
the filter, clean the filter.
3. Check if the air volume at teh tuyere is too small and if the indoor
unit fan is blocked, if is, clean the fan.
4. Measure the drift of the inner disk sensor with a multimeter at
ambient temperature.
Special attention
P7 usually refers to the anti-freezing protection of the refrigeration
room due to poor air inlet.
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 ...