Check
SiBE041010
96
Service Diagnosis
5.1.10 Rotation Pulse Check on the Outdoor Unit PCB
Check No.15
<Outdoor fan motor>
1. Check that the voltage between the pins 10-11 is 15 VDC.
2. Check if the Hall IC generates the rotation pulse (0 ~ 15 VDC) 4 times between the pins 10-
12, 10-13, when the fan motor is manually rotated once.
13
12
11
10
9
8
7
6
5
4
3
2
1
S70
Phase U
15 VDC
Phase V
Phase W
HU (Hall IC)
HV (Hall IC)
Free pin
Free pin
Free pin
Free pin
Free pin
Free pin
(R11907)