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Troubleshooting by Remote Controller Display / LED Display
SiBE28-804
216
Troubleshooting
5.39 “
U4
”, “
UF
” Malfunction of Transmission between Indoor
and Outdoor Unit
Remote
Controller
Display
U4
or
UF
Applicable
Models
RZQ(S)71~140
Error generation
The error is generated when the microprocessor detects that the transmission between the
indoor and the outdoor unit is not normal over a certain amount of time.
Supposed
Causes
The possible causes are:
Wiring indoor-outdoor transmission wire is incorrect
Malfunctioning indoor unit PC board
Malfunctioning outdoor unit PC board
burning out fuse
Faulty fan motor
Outside cause (noise...).
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 ...