![background image](http://html1.mh-extra.com/html/daikin/fhq100buv1b-x-2/fhq100buv1b-x-2_service-manual_2459261193.webp)
Troubleshooting by Remote Controller Display / LED Display
SiBE28-804
182
Troubleshooting
Troubleshooting
*1: Voltage measurement point
*2: “Pressure Sensor”, pressure / voltage characteristics table.
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
NO
NO
YES
YES
YES
YES
NO
YES
YES
NO
YES
NO
NO
NO
Open the stop valve.
Connect the connector
properly.
Connect the connector
properly.
Replace the group
thermistor.
Replace the pressure
sensor.
Replace the outdoor PC
board (A1P).
Correct the refrigerant
system defect.
∗
Replace the PC
board equipped
with resin case.
Is the stop valve open?
Is it in cooling operation?
(In cooling
operation)
(In heating
operation)
Remove the thermistor from the
outdoor PC board and measure
resistance between the pins (5)
and (6).
Is
the pressure
sensor (connector :
X17A) properly connected
to the outdoor
PC board?
Is
the heat
exchanger distribution pipe
thermistor (connector : X12A) properly
connected to the outdoor
PC board?
Measure voltage between
the connector pins (1) and
(3) above. (refer to *1)
Is
the relation
between low pressure
and voltage normal?
Is
it normal?
(See )
Check 11
Is low-pressure
abnormally low?
(refer to *2)
Check 7
Detected pressure
PH (MPa)
Output voltage V
-0.5
-0.5
0
0.5
1.0
2.0
3.0
1.5
2.5
0.5
1.5
2.5
3.5
0
1
2
3
4
V
DC
PH
PH = 1.38V-0.69
PH : Detected pressure (MPa)
V : Output Voltage (V)
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 ...