SiBE28-804
Troubleshooting
121
Part 6
Troubleshooting
1. How to Handle Request for Maintenance ...........................................123
General Troubleshooting Flowchart .....................................................123
2. Troubleshooting Based on Equipment Condition................................124
Overview of General Problems ............................................................124
Equipment does not Operate ...............................................................125
Indoor Fan Operates, but Compressor does not..................................127
Cooling/Heating Operation Starts but Stops Immediately ....................129
After Unit Shuts Down, It cannot be Restarted for a While ..................131
Equipment Operates but does not Provide Cooling .............................133
Equipment Operates but does not Provide Heating .............................135
Equipment Discharges White Mist .......................................................137
Equipment Produces Loud Noise or Shakes........................................138
2.10 Equipment Discharges Dust.................................................................140
2.11 Remote Controller LCD Displays "
" ..................................................141
2.12 Swing Flap does not Operate...............................................................142
3. Procedure of Self-Diagnosis by Remote Controller ............................144
The Inspection/Test Button ..................................................................144
Fault-diagnosis by Wired Remote Controller........................................145
Fault-diagnosis by Wireless Remote Controller ...................................146
Remote Controller Display Malfunction Code and Contents ................150
4. Troubleshooting by LED Indications ...................................................152
Troubleshooting by LED on the Indoor Units .......................................152
Troubleshooting by LED on Outdoor Unit PC Board............................153
5. Troubleshooting by Remote Controller Display / LED Display ............154
Outdoor Malfunctions ...........................................................................155
System Malfunctions ............................................................................156
Overview of the Outdoor Safety Devices .............................................157
Overview of the Indoor Safety Devices ................................................158
” Malfunctioning Indoor PC Board ....................................................159
” Malfunction of Drain Water Level System .....................................160
” Indoor Unit Fan Motor Lock ...........................................................162
” Swing Flap Motor Malfunction / Lock .............................................164
” Abnormal Power Supply Voltage...................................................166
” Malfunctioning Drain System .........................................................167
” Malfunctioning Capacity Setting ....................................................169
” Failure of transmission (between indoor unit PC board and
” Thermistor Abnormality ..........................................................173
(between indoor unit PC board and fan PC board) ..............................175
” Malfunctioning Remote Controller Air Thermistor..........................176
” Humidity Sensor System Malfunction ............................................177
” Failure of Outdoor Unit PC Board...................................................178
” Abnormal High Pressure (Detected by the HPS)...........................179
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 ...