Carrier 38MGRQ18B 3 Series - DIAGNOSIS AND SOLUTION: IPM and Rectifier Testing; IPM Board and Bridge Rectifier Testing

38MGR-04SM Specifications subject to change without notice. 45
DIAGNOSIS AND SOLUTION (CONT)
Fig. 52 — IPM Board (for 2-zone/3-zone)
Fig. 53 — Bridge rectifier (for 2-zone/3-zone)
IPM board (for
2-zone /3-zone)
P(or E1/E2/E3)-N(GND)
(for 2-zone/3-zone)
Bridge rectifier
(for 2-zone/3-zone)
Remark:
Measure the DC voltage
between + and - port.
The normal value should be
190V~250V.