01562 702 352     -    07469 718 828


We provide onsite support to our customers - any machine tool, any age

Experience in all CNC manufacturing industry fields, including automotive, aerospace, textiles, food & beverage, petrochemicals, R&D, science & education

Christmas and New Year 2023

Note Control CNC Services Ltd will be closed from

20th December 2023 to 3rd January 2023

Blog Post

22nd November 2022

Failure of CCU3 / CCU3.4

Siemens 810D is a great control that we provide a lot of support for and is commonly used across many machine tools, with XYZ being the most popular. A common issue on them is the failure of CCU3 / CCU3.4.

Over time, dirt and coolant ingress cause component failure on the PCB, rendering your machine inoperable. We now have a cost-effective fix for these failures for both CCU3 (6FC5410-0AY03-0AA1, 6FC5410-0AY03-0AA0) and CCU3.4 (6FC5410-0AY03-1AA0).

We offer a fast turnaround repair / exchange service whereby we can either repair and reload your board remotely or attend site and carry out the exchange there.

A CCU3 can be replaced with a CCU3.4 and vice versa. We hold both in stock, both of which are supplied with a 12-month warranty.

Please do call us, even if only for advice. We will always try to help first with advice and remote support. If we cannot help remotely, then we will advise you of the best actions and attend the site to resolve the issue if necessary.

CCU3 / CCU3.4 Failure
CCU3 / CCU3.4 Failure
CCU3.4 Failure
CCU3 Failure
Repair of Sinumeril 810D HMI Screen

Previous Post

2nd May 2022

We saved our customer lots of money with the repair on this Sinumerik 810D HMI screen.

The backlights had gone short circuit which in turn took out the inverter.

Matsuura MAM72-63V 5-axis multi-pallet changer

Next Post

5th January 2024

We take a look at a Matsuura MAM72-63V 5-axis multi-pallet changer with Siemens 840Di control coupled with Yasakawa drives.

This machine hadn't struck a blow for over 4 years, pretty much condemned by the OEM with quotes of over £30,000 to put it right.

An 840D Powerline Rig with 611 Drives

Next Post

January 5, 2017

This is what happens when a Deublin valve seizes while the spindle is cutting at 15000 rpm!


A family business established in 2016, Control CNC Services Ltd. has over 30 years of experience in the CNC machine tool industry. 

Our engineers support all aspects of CNC applications. We provide a total breakdown solutions package; whether the fault is mechanical, electrical, electronic, software, control, or drive, our multi-disciplined engineers will resolve the problem.

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33 Holman Street, Kidderminster, DY11 6QY

Mob - 07469 718828    or    Tel - 01562 702 352

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