General Electric GE-HIAK PWMP4B (PN: GE 44A399729 G01) Servo Drive Repair and Exchange Service
General Electric GE-HIAK PWMU4A, (PN: GE 44A399729 G07) Servo Drive Repair and Exchange Service

Industrial Electronic Repair Depot

This is my GE Hiak PWMP4B & PWMU4A Repair Page.

PWMP4B (PN: GE 44A399729 G01) and PWMU4A (PN: GE 44A399729 G07)

Low overhead and 35 years Experience means Low prices and Fast turn-around.

Exchanges are available when Machine down-time is not acceptable.

The PWMP4, (
PN: 44A399729 G01) and the PWMU4, (PN: 44A399729 G07) are interchangeable.

The U stands for Underwriter approved and was required by some larger purchasers.
Either unit is interchangeable for the other and will work fine.

Questions?  Call and ask for TJ or email me


90 day warranty on all repairs.

SAVE hundreds of dollars.

GE-HiAK and GE 1050 repairs and exchanges. GE HY-AK


All types of Industrial Circuit boards and Electronic Controls repaired at the lowest cost anywhere on the net.

Electronic Circuit Boards,  Modules, Drives Power Supplies and  I/O Cards Repaired. All Industrial Electronics, FANUC,
Mazak, Meldas, Mitsubishi CNC, Fuji, Allen Bradley ( A/B ), and most others at low prices and fast service.


I repair the following General Electric GE-HIAK Drives and Boards

PWMP1, GE 44A398797 G01, PWMP2, PWMP3, PWMP4, PWMP5,
PWMU1, GE 44A398797 G04, PWMU2, PWMU3, PWMU4,PWMU5, and PWM50,

PWMR2B- GE 44A398788G02 - Servo Drive Card
 PWMC4 HI-AK Turret Drive Board GE 44A398795G04 GE HIAK
 PWMU3A HIAK Servo Drive Board General Electric HI-AK GE 44A719208-001
 PWMP3 HIAK Servo Drive Board General Electric HI-AK GE 44A398786-G02
 PWMRL1 HIAK Servo Drive Board General Electric HI-AK GE 44B398240-001
 PWML1B HIAK Servo Drive Board General Electric PN GE 44A398700-G01
 GE 44A398795-G01 PWMC3 HI-AK Drive Control Board
 GE 44A398795-G04 PWMC4 HIAK HI-AK
 FANUC 6,Fanuc 0, O, 10, 11, 12 , 15 Control Repair.
 Meldas, Mitsubishi CNC Control Repair.