Troubleshooting Based on Equipment Condition
SiBE28-804
128
Troubleshooting
Troubleshooting
Output
from
PC
board
Is the power
switch OFF or the fuse for
power switch
blown?
Is the
heating switch
turned on at outdoor
temperature
>32˚C
YES
c
Is rated
voltage applied at
the compressor
terminals?
d
Is rated voltage
output from the magnetic switch
or power
transistor?
e
Is rated voltage
output from the
PC board?
YES
YES
· Indoor unit fan runs at set airflow rate.
· (In cooling operation)
When air thermistor ambient temperature is higher than set temperature
· (In heating operation)
When air thermistor ambient temperature is lower than set temperature
Indoor unit
PC board
Outdoor unit
PC board
Relay
c
Output from
magnetic
switch or
U,V,W of
power
transistor
d
Output from
magnetic
switch or SW
circuit of
power
transistor
e
Output from
relay or
microcomputer
Input
to PC
board
Input
to PC
board
(S2576)
NO
NO
YES
NO
NO
YES
NO
Air sensor
Magnetic
switch
COMP
Turn on the power
switch or replace fuse.
Normal.
(Thermostat OFF by
outdoor temperature)
Replace the compressor.
Replace the magnetic
switch or power
transistor.
Replace the PC board.
Check the thermistor.
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Содержание FHQ100BUV1B x 2
Страница 1: ...SiBE28 804 SkyAir RZQ71C7V1B RZQ100 140C7V1B RZQS71 100C7V1B RZQS125 140C7V1B R 410A Heat Pump 50Hz ...
Страница 13: ...SiBE28 804 2 ...
Страница 19: ...Model Name and Power Supply SiBE28 804 8 General Information ...
Страница 29: ...Specifications SiBE28 804 18 Specifications ...
Страница 33: ...Wired Remote Controller SiBE28 804 22 Remote Controller 1 2 Installation ...
Страница 34: ...SiBE28 804 Wired Remote Controller Remote Controller 23 ...
Страница 43: ...SiBE28 804 32 Functional Description 6 Outdoor Unit Fan Speed Control 81 6 1 Outdoor Unit Fan Speed Control 81 ...
Страница 93: ...Outdoor Unit Fan Speed Control SiBE28 804 82 Functional Description ...
Страница 131: ...Test Run and Operation Data SiBE28 804 120 Test Operation ...
Страница 251: ...Troubleshooting by Remote Controller Display LED Display SiBE28 804 240 Troubleshooting ...
Страница 277: ...PCB Layout SiBE28 804 266 Appendix ...
Страница 297: ...RZQ100 140C7 RZQS125 140C7V1B SiBE28 804 286 Removal Procedure ...
Страница 311: ...SiBE28 804 iv Index ...