![background image](http://html.mh-extra.com/html/daikin/fdmq12rvju/fdmq12rvju_service-manual_501418196.webp)
Check
SiUS091601EA
191
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 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 FDMQ12RVJU
Page 18: ...SiUS091601EA 13 Part 2 Specifications 1 Specifications 14 Part 2 Specifications ...
Page 198: ...Check SiUS091601EA 193 Part 6 Service Diagnosis 18 24 class R24538 1 2 3 4 Multimeter ...
Page 201: ...SiUS091601EA Check Part 6 Service Diagnosis 196 18 24 class R24539 DC DC W V U ...
Page 229: ...SiUS091601EA Piping Diagrams Part 8 Appendix 224 RXL15QMVJU RXL18UMVJU 3D100007 3D123368 ...
Page 230: ...Piping Diagrams SiUS091601EA 225 Part 8 Appendix RXL24UMVJU 3D107985A ...