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Check
SiUS092230EA
200
Part 6 Service Diagnosis
8.11 Outdoor Fan System Check
Check No.19
DC motor
8.12 Main Circuit Short Check
Check No.20
Check to make sure that the voltage between (+) and (–) of the diode bridge (DB1) is about
0 V before checking
Measure the resistance between the pins of the DB1 referring to the table below.
If the resistance is
or less than 1 k
, short circuit occurs on the main circuit.
09/12 class
(R21195)
YES
NO
NO
YES
Outdoor fan system is functioning.
Check the outdoor fan system.
Reconnect the connector.
Is
the outdoor fan
running?
Fan motor lead
wire connector
disconnected?
Go to
Check No. 16
.
Positive terminal (+) of
digital multimeter
~ (2, 3)
+ (4)
~ (2, 3)
– (1)
Negative terminal (–) of
digital multimeter
+ (4)
~ (2, 3)
– (1)
~ (2, 3)
Resistance is OK.
several k
~ several M
Resistance is NG.
0
or
(R20698)
1
2
3
4
Multimeter
–~
~
+
–
+
Summary of Contents for RX-W Series
Page 1: ... Applied Models Inverter Pair Heat Pump Service Manual SiUS092230EA Inverter Pair RX W Series ...
Page 207: ...SiUS092230EA Check Part 6 Service Diagnosis 201 15 18 24 class R25105 1 2 3 4 Multimeter ...
Page 209: ...SiUS092230EA Check Part 6 Service Diagnosis 203 15 18 24 class R20704 W V U DC_P1 DC_N1 ...
Page 239: ...SiUS092230EA Piping Diagrams Part 8 Appendix 233 RX24WMVJU9 3D141502 ...