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Troubleshooting by Remote Controller Display / LED Display
SiBE28-804
232
Troubleshooting
Clogged Points
Temperature differences must occur before or after the clogged points!
Check No.8
Check points
Check factor
Causes
Remedies
1
Around
expansion
mechanism
Temperature
difference
Dust
Choked moisture
Reduced effective pipe
diameter due to adherent
contamination, etc.
Replace the
expansion valve.
2
Accumulator
Frosting
Choked moisture
Blow a nitrogen gas,
and then replace the
refrigerant.
3
Distributor Temperature
difference
Dust
Choked moisture
Reduced effective pipe
diameter due to adherent
contamination, etc.
Replace the heat
exchanger or
distributor.
4
Field piping
Temperature
difference
Collapsed pipe
Replace the pipe.
5
Stop valve
Temperature
difference
The stop valve is not fully
open.
Open the stop valve
fully.
RAC
Indoor Unit
Outdoor Unit
COMP
1
2
3
3
4
5
Summary of Contents for FHQ100BUV1B x 2
Page 13: ...SiBE28 804 2 ...
Page 19: ...Model Name and Power Supply SiBE28 804 8 General Information ...
Page 29: ...Specifications SiBE28 804 18 Specifications ...
Page 33: ...Wired Remote Controller SiBE28 804 22 Remote Controller 1 2 Installation ...
Page 34: ...SiBE28 804 Wired Remote Controller Remote Controller 23 ...
Page 93: ...Outdoor Unit Fan Speed Control SiBE28 804 82 Functional Description ...
Page 131: ...Test Run and Operation Data SiBE28 804 120 Test Operation ...
Page 251: ...Troubleshooting by Remote Controller Display LED Display SiBE28 804 240 Troubleshooting ...
Page 277: ...PCB Layout SiBE28 804 266 Appendix ...
Page 297: ...RZQ100 140C7 RZQS125 140C7V1B SiBE28 804 286 Removal Procedure ...
Page 311: ...SiBE28 804 iv Index ...