Repair
power supplies industrial
Siemens SITOP · Phoenix Contact QUINT · PULS · Mean Well · Weidmüller PRO · power supplies szafowe
Comprehensive service of industrial power supplies — MOSFET transistor replacement, electrolytic capacitors, rectifier diodes, SMPS circuit and PWM controller service. No-obligation quote, 12-month warranty.
Diagnostics included in repair
Priority quote
12-month warranty
Courier pickup from all of Europe
Load testing after repair
Industrial power supplies — what and how do we repair?
MOSFET / IGBT transistors
Replacement of faulty switching transistors in the power supply power section (Primary Switch). We use original or equivalent high-quality components.
Electrolytic capacitors
Replacement of output and input electrolytic capacitors (Bulk capacitors). Preventive capacitor replacement for units exceeding 8–10 years.
PWM controllers and regulation circuits
Repair of PWM control circuits (TL494, UC3842, LT3845 and others). Service of voltage and current feedback loops, softstart circuits and OCP/OVP protection.
Input rectifier
Repair of PFC (Power Factor Correction) rectifier section and pre-charge circuits. Replacement of diodes and rectifier bridges, NTC thermistors.
OVP/OCP/SCP protection
Repair and calibration of protection circuits: overvoltage (OVP), overcurrent (OCP), short circuit (SCP). Protection testing on a load tester.
Load test
Every repaired power supply is load-tested on an electronic load (100%, 110%, 120% of rated current). Test results are included with the repaired power supply.
Why EFIXLAB?
Service of industrial power supplies from all brands
- All brands — Siemens SITOP, Phoenix Contact QUINT/STEP, PULS DIN-rail, Mean Well HDR/MDR/DRS, Weidmüller PRO EC, ABB CP-E, murr elektronik, Omron, Allen-Bradley 1606 and others.
- Redundant power supplies (ORing) — service of redundancy circuits (ORing diodes, QUINT-DIODE ADD-ON redundancy modules). Active/passive switchover diagnostics.
- 100/110/120% load test — full electronic load test before returning the power supply.
- Preventive capacitor replacement — on customer request, we replace capacitors preventively during repair of another part of the power supply.
- 12-month warranty — on all performed work.
How does repair work for power supplies?
Request
online or by phone
Shipping
by courier
diagnostics
SMPS
Quote
no obligation
Repair
& load test
Return
with warranty
Report fault power supplies — no-obligation quote
Provide the brand, model of the power supply and fault description (no output voltage, OCP tripping, buzzer, LED flashing). Our specialist will respond with a diagnosis.
Dziękujemy! Your request has been received — our power supply specialist will contact you shortly.Frequently asked questions
we repair power supplies Siemens SITOP (PSU100S/200M/modular), Phoenix Contact QUINT POWER/QUINT4, PULS (QS/QT/CP/CPS), Mean Well (HDR/MDR/DRS/SDR), Weidmüller PRO, ABB CP-E, murr elektronik, Omron S8VS i inne.
DIN-rail power supplies typically cost 200–600 PLN, so repair (usually 80–200 PLN) is cost-effective. Worth repairing. Exception: cheap no-name units below 50 PLN or units with multiple secondary faults.
Diagnostics: 1 business day. Repair: 5–7 business days after approval. Express mode for stopped production. As a rule — repair time may be significantly extended depending on component availability and repair complexity. Deadlines are agreed individually with the client.
Industrial Power Supply Repair — DIN Rail, Open Frame, and Rack Mount
Industrial power supplies from Mean Well, Phoenix Contact, Siemens (SITOP), PULS, TDK-Lambda, Weidmüller, ABB, and others convert mains or DC input to regulated DC outputs that power PLCs, sensors, actuators, and communication equipment throughout automation installations. From compact 24V DIN rail supplies to high-power rack-mount units, these power supplies must deliver stable, clean DC power reliably for years. Power supply failure disables everything downstream — making repair or replacement urgently needed.
The most common power supply failures include electrolytic capacitor aging (the primary failure mode — reduced capacitance causes output ripple and eventual regulation failure), switching transistor/MOSFET degradation, control IC failures, output diode failures, transformer insulation breakdown, and fan failures in ventilated models. Capacitor aging accelerates with temperature — every 10°C above rated temperature roughly halves capacitor life. Industrial environments often exceed power supply thermal ratings, especially in enclosed cabinets without adequate ventilation.
EFIXLAB provides industrial power supply repair for all manufacturers and form factors. Our service covers electrolytic capacitor replacement with extended-life, high-temperature rated equivalents, switching transistor replacement, control IC repair, output rectifier repair, and transformer testing. We test all repaired power supplies under rated load conditions, verify output voltage accuracy, ripple specification, and overload/overtemperature protection functionality.
Power supply repair typically saves 35–60% versus new unit purchase. For premium power supplies (SITOP, PULS, Phoenix QUINT) and higher-power units, repair offers excellent value. Capacitor replacement with upgraded components often results in improved reliability compared to original specification. All power supply repairs include load testing and our 12-month warranty.