What types of PLC repairs do you perform?

We handle all types of Allen Bradley PLC repairs including power supply issues, I/O module repairs, processor repairs, communication module repairs, and board-level component repairs.

7/21/26 Update

Repairs Starting at $650

Includes diagnostics, repair, testing, return shipping, and a 1-year NJT Automation warranty.

No charge if your unit is determined to be beyond economical repair.

NJT Automation now specializes in high-value, mission-critical industrial automation repairs, allowing us to dedicate our resources to delivering the highest standards of testing, repair quality, and customer service.

For lower-cost repairs or to receive competitive estimates from independent technicians, we recommend posting your repair on RepairMode.com, our platform connecting customers with experienced repair technicians.

Allen Bradley PLC Repair Service

ControlLogix, CompactLogix, MicroLogix & SLC 500 Repair

Get Quick Repair Quote

NJT Automation provides Allen Bradley PLC mail-in repair for ControlLogix, CompactLogix, MicroLogix, and SLC 500 systems, including board-level diagnosis and repair.

If you searched "Allen Bradley PLC repair near me," we offer nationwide mail-in PLC repair service with fast turnaround and return shipping. All Allen Bradley PLC repairs include a 1-year full-function warranty.

We also offer HMI repair, PanelView repair, and VFD repair for complete Allen-Bradley automation system support.

Why Choose NJT for Allen Bradley PLC Repair?

Expert Technicians: NJT coordinates repairs with specialists experienced in Allen-Bradley PLC systems. Read how our nationwide PLC programming and repair network matches each job to the right technician.
1-Year Warranty: We stand by the quality of our repairs. All PLC repairs come with a 1-year warranty.
Comprehensive Diagnostics: We conduct thorough diagnostics to identify and address the root cause of the issue.
Fast Turnaround: Most repairs are completed within 5-10 business days.
Complete Restoration: We repair both functionality and aesthetics, making your PLC look and perform like new.

Our PLC Repair Process

Request a Quote: Request a repair quote with your PLC model number and issue description.
Send Your Equipment: Ship your PLC to our facility. We provide prepaid UPS shipping labels for most repairs.
Specialist Repair: Your PLC is routed to a technician with specific experience in your PLC platform (ControlLogix, CompactLogix, SLC 500, etc.). They diagnose the issue and complete the repair upon approval.
Testing & Return: Full functional testing, then shipped back with a 1-year warranty.

Request PLC Repair Quote:

Use our quote form to request PLC repair. Repair will be selected automatically, and this category is added to your notes.

Request PLC Repair Quote

ONE-YEAR WARRANTY ON ALL PLC REPAIRS

RUSH TURNAROUND AVAILABLE

Allen Bradley PLC Repair | ControlLogix, CompactLogix, SLC 500, MicroLogix

Allen Bradley PLC Models We Repair

NJT Automation repairs Allen Bradley PLCs across major product families, including board-level work on Rockwell Automation systems.

We offer complete testing, diagnosis, and repair for Allen Bradley PLC models including:

ControlLogix 1756 Series: 1756-L71, 1756-L72, 1756-L73, 1756-L74, 1756-L75, 1756-L81E, 1756-L82E, 1756-L83E, 1756-L84E, 1756-L85E
CompactLogix 1769 Series: 1769-L30ER, 1769-L33ER, 1769-L36ERM, 1769-L16ER, 1769-L18ER, 1769-L24ER
CompactLogix 5380/5480: 5069-L306ER, 5069-L310ER, 5069-L320ER, 5069-L330ER, 5069-L340ER, 5069-L350ER
MicroLogix 1400: 1766-L32BWA, 1766-L32BXB, 1766-L32AWAA, 1766-L32BXBA
MicroLogix 1100: 1763-L16BWA, 1763-L16AWA, 1763-L16DWD
SLC 500: 1747-L551, 1747-L552, 1747-L553, 1747-L524, 1747-L532, 1747-L541, 1747-L542, 1747-L543
PLC-5: 1785-L40B, 1785-L60B, 1785-L80B, 1785-L40E, 1785-L80E
Power supplies, I/O modules, communication modules, and processors

We specialize in SLC500 PLC repairs, particularly the popular 5/05 CPU modules. Common SLC500 models we repair include:

Common SLC500 repairs include communication failures, memory errors, and power supply problems. We stock common replacement parts for faster turnaround.

Allen Bradley PLC Repair FAQs

How fast can you repair my Allen Bradley PLC?

Most Allen Bradley PLC repairs are completed within 5-10 business days. Rush service may be available for urgent repairs.

What Allen Bradley PLC models do you repair?

We repair all Allen Bradley PLC models including ControlLogix 1756, CompactLogix 1769 and 5069, MicroLogix 1100 and 1400, SLC 500, and PLC-5 systems. Our technicians handle CPUs, power supplies, I/O modules, and communication modules.

Do you offer a warranty on Allen Bradley PLC repairs?

Yes, all Allen Bradley PLC repairs include a 1-year full-function warranty covering repair-related failures under normal operating conditions.

What types of Allen Bradley PLC repairs do you perform?

We handle all types of Allen Bradley PLC repairs including power supply failures, I/O module issues, processor faults, communication module repairs, and board-level component repairs.

Do you buy broken parts?

Yes. We actively purchase non-working and known-faulty industrial automation equipment. In fact, we often prefer acquiring units with known faults because they can be fully diagnosed, repaired, refurbished, and thoroughly tested before being added to our inventory. This process typically produces a more reliable product than a simply used unit, giving customers greater confidence in the replacement they receive.