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SiBE28-804
Troubleshooting by LED Indications
Troubleshooting
153
4.2
Troubleshooting by LED on Outdoor Unit PC Board
The following diagnosis can be conducted by turning on the power switch and checking the LED
indication on the printed circuit board of the outdoor unit.
4
: LED on /
7
: LED off /
5
: LED blinks / — : No connection with troubleshooting
Notes:
1. Turn off the power switch, and turn it on again after 5 seconds or more. Check the error
condition, and diagnose the problem.
2. Turn off the power switch. After 5 seconds or more, disconnect the connection wire (2). Then
turn on the power switch. If the HAP on the outdoor unit PCB flashes after about 10 seconds,
the indoor unit PCB is faulty.
3. Also check for open phase.
Remark:
The error detection monitor continues to indication the previously generated error until the
power switch is turned off.
Be sure to turn off the power switch after inspection.
LED detection
Description
Microcomputer in
normal operation
HAP
Error detection
H3P
(Green)
(Red)
5
7
Normal
4
—
Faulty outdoor unit PC board (Note 1)
7
—
Power supply abnormality, or faulty outdoor unit PC
board (Note 2)
5
4
Activation of protection device (Note 3)
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 ...