SiUS091628EA
Check
Service Diagnosis
108
5.11 Outdoor Fan System Check
Check No.19
DC motor
5.12 Main Circuit Short Check
Check No.20
Check to make sure that the voltage between (+) and (–) of the diode bridge (DB1) is approximately
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
Ω
, 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
Ω
~ several M
Ω
Resistance is NG.
0
Ω
or
∞
(R20698)
1
2
3
4
Multimeter
–~
~
+
–
+
Содержание FFQ09Q2VJUFFQ12Q2VJUFFQ15Q2VJUFFQ18Q2VJURX09QMVJURX12QMVJURX15QMVJURX18QMVJU
Страница 12: ...SiUS091628EA 1 List of Functions Part 1 List of Functions 1 Functions 2...
Страница 14: ...SiUS091628EA 3 Specifications Part 2 Specifications 1 Specifications 4...
Страница 120: ...Check SiUS091628EA 109 Service Diagnosis 15 18 class R20701 1 2 3 4 Multimeter...
Страница 122: ...Check SiUS091628EA 111 Service Diagnosis 15 18 class R20704 W V U DC_P1 DC_N1...