Industrial Electronic Repair — UK Wide
Industrial Power Supply Repair | Newcastle Upon Tyne
When a power supply fails, everything downstream stops with it. We diagnose and repair industrial PSUs — switch mode, linear and obsolete units — at component level, restoring full output and regulation without the cost or lead time of a replacement. In-house engineers, no subcontracting, based in Newcastle.
Power supplies we repair
Power supply failure is one of the most common causes of unplanned downtime in industrial control systems. Our engineers repair PSUs across manufacturing, offshore, marine and utilities equipment — restoring units to full specification rather than swapping the whole assembly.
We work on switch mode, linear, uninterruptible and DC rail power supplies, including single- and multi-output units, high-voltage supplies, and PSUs built into larger drive or control panel assemblies. We also repair supplies from equipment the manufacturer no longer supports.
If you're not sure whether your unit is repairable, send us the make, model and fault description — we'll tell you honestly before you ship anything.
Faults we diagnose and repair
Power supply failure usually comes down to a handful of well-understood causes. Component-level diagnosis means we find the actual failed part — not just the symptom.
Our power supply repair process
PSU repair lives or dies on verification. Two units can fail identically on the bench and behave completely differently once real load is applied — so our process is built around proving the fix under the conditions that broke it in the first place, not just around swapping parts.
Incoming inspection
Checked for physical damage, contamination and signs of prior failure before any test power is applied.
Component-level diagnosis
Capacitors, switching devices, rectifiers and control ICs tested individually to find the actual failed part.
Written quote
Fixed price confirmed before work starts. If it's not worth repairing, we say so.
Component replacement
Faulty parts replaced to original specification, with upgraded long-life types where degradation was the cause.
Load testing
Output, ripple and regulation verified under simulated real operating conditions with an electronic load, oscilloscope and thermal camera.
Burn-in & report
Full burn-in cycle completed, then returned with a documented output report — not just a note saying "repaired and tested."
Power supply brands we repair
If your brand isn't listed, call us — we very likely repair it.
Industries we support
Related services
Why customers choose NPE for PSU repair
Verified under real load, not just powered on
A PSU can power up fine on the bench and still fail under actual load. We test output, ripple and regulation using electronic loads and oscilloscopes to recreate your equipment's real operating conditions, then run a full burn-in cycle before dispatch.
Root-cause component replacement
Capacitor degradation, failed switching devices, and rectifier faults often look identical from the symptom alone. We identify the specific failed part rather than replacing the whole power stage on suspicion.
Long-life components fitted as standard
Where electrolytic capacitors are the likely point of future failure, we fit upgraded low-ESR, long-life types rather than direct equivalents — reducing the chance of the same fault recurring.
Obsolete and high-voltage PSU experience
We repair switch-mode, linear, and high-voltage supplies from equipment no longer supported by the manufacturer, sourcing or adapting components where the original part is discontinued.
Fast assessment on downtime-critical faults
A failed PSU takes everything downstream with it. We assess within 1–2 working days so dependent equipment isn't left offline longer than necessary.
Repair report with test data included
You receive documented output, ripple and load-test results alongside the fault description — not just a note saying "repaired and tested."
Frequently Asked Questions
How do you test a repaired power supply under load before it's returned?
We don't just power a unit up on the bench and call it done. Output voltage, ripple and regulation are measured under an electronic load that simulates your equipment's real operating conditions, using an oscilloscope and thermal camera to check for instability or heat build-up. Every repaired unit then goes through a full burn-in cycle before dispatch, and you receive documented test results with your repair report.
How do I know if my industrial power supply has failed?
Common signs: no output, output outside specification, downstream equipment tripping, the unit running hot, a burning smell, swollen capacitors, or a fuse that keeps blowing. If the PLC and drive check out, check the power supply next.
Is it worth repairing a power supply rather than replacing it?
In most cases, yes — repair typically costs a fraction of replacement, particularly on obsolete or higher-rated units. We'll give you a straight answer on your specific unit.
Can you repair obsolete power supplies no longer manufactured?
Yes — one of our core strengths. We repair PSUs from equipment installed decades ago, sourcing equivalent components where the original is discontinued.
How long does a power supply repair take?
Most repairs complete within three to five working days once the unit is in our workshop. Urgent cases can be prioritised on request.
What warranty do you offer on a repaired power supply?
Minimum 6-month warranty as standard, extended cover up to 24 months available, confirmed in writing with your quotation.