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SiBE28-804
Troubleshooting by Remote Controller Display / LED Display
Troubleshooting
179
5.19 “
E3
” Abnormal High Pressure (Detected by the HPS)
Remote
Controller
Display
E3
Method of
Malfunction
Detection
The protection device circuit checks continuity in the high pressure switch.
Malfunction
Decision
Conditions
When the high pressure switch is actuated
Actuating pressure:
RZQ(S)71~140
Supposed
Causes
Faulty high pressure switch
Disconnection in high pressure switch harness
Faulty connection of high pressure switch connector
Clogged indoor unit suction filter (in heating operation)
Dirty outdoor unit heat exchanger
Faulty outdoor unit fan
Refrigerant overcharge
Stop valve is left in closed.
HPS settings
The table below contains the preset HPS values.
High pressure switch
Fuse
Open
Close
RZQ(S)71
4.0 Mpa +0/-0.15
3.0 +/-0.15
6.3A/250V
RZQ(S)100
RZQ(S)125
RZQ(S)140
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 ...