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Troubleshooting by LED Indications
SiBE28-804
152
Troubleshooting
4. Troubleshooting by LED Indications
4.1
Troubleshooting by LED on the Indoor Units
Foreword
Troubleshooting can be carried out by service monitor LED (green). (Blinks when normal)
4
: LED on /
7
: LED off /
5
: LED blinks / — : No connection with troubleshooting
Notes:
1. When the INSPECTION/TEST button of remote controller is pushed,
INSPECTION
display
blinks entering
INSPECTION
mode.
2. In the
INSPECTION
mode, when the ON/OFF button is pushed and held for 5 seconds or
more, the aforementioned malfunctioning history display is off. In this case, after the
malfunction code blinks 2 times, the code display turns to “00” (=Normal) and the unit No.
turns to “0”. The INSPECTION mode automatically switches to the normal mode (set
temperature display).
3. Operation halts due to malfunction depending on the model or condition.
4. If LED-B is off, the transmission wiring between indoor and outdoor unit may be incorrect or
disconnected. Before performing the previously described troubleshooting, check the
transmission wiring.
5. Troubleshoot by turning off the power supply for a minimum of 5 seconds, turning it back on,
and then rechecking the LED display.
Microcomputer
Normal Monitor
Transmission
Normal Monitor
Contents/Processing
HAP (LED-A)
HBP (LED-B)
5
5
Indoor unit normal
→
Outdoor unit trouble shooting
5
4
Incorrect transmission wiring between indoor and
outdoor unit
7
If outdoor unit’s LED-A is off, proceed outdoor unit’s
trouble shooting. If outdoor unit’s LED-A blinks, failure of
wiring or indoor or outdoor unit P.C board ass’y. (Note 4)
4
—
Failure of indoor unit PC board ass’y (Note 5)
7
Malfunction of power supply or failure of PC board ass’y
or broken transmission wire between indoor and outdoor
unit. (Note 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 ...