Checking The Fan Intelligent Power Module (Ipm) - LG Multi V5 Service Manual
Hide thumbs
Also See for Multi V5:
- Data manual (162 pages) ,
- Manual book (133 pages) ,
- Engineering manual (105 pages)
Table of Contents
Advertisement
Checking the Fan Intelligent Power
Module (IPM)
1. Shut off main power. After main power is shut off, wait at least ten
(10) minutes until the fan PCB DC voltage is discharged.
WARNING
After switching off the main power supply and verifying that the DC volt-
age was discharged, wait for at least ten (10) minutes before checking
the electrical components in the control box. There is risk of electric
shock, physical injury or death.
2. Disconnect the DC and the U, V, W fan connectors.
3. Set the multi-tester to diode resistance mode.
4. Measured value must be the same as shown below.
5. If the measured value between the P and N terminals of the IPM
is damaged.
6. If the measured value is different than what is listed in the tables,
the fan PCB needs to be replaced.
Table 66: Checking the Fan IPM.
U Terminal : Red (+)
V Terminal : Red (+)
W Terminal : Red (+)
U Terminal : Black (-)
V Terminal : Black (-)
W Terminal : Black (-)
P Terminal: Black (-)
P Terminal: Red (+)
Due to our policy of continuous product innovation, some specifications may change without notification.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. "LG" is a registered trademark of LG Corp.
CHECKING THE FAN IPM
Figure 59: Location of Fan PCB Connections (Appearances Will Vary
Depending on Model).
U,V,W Connector
P Terminal
U Terminal
V Terminal
DC Link Connector
N Terminal
W Terminal
N Terminal: Red (-)
N Terminal: Red (+)
121
Advertisement
Table of Contents
Troubleshooting
