CircuitFix
    Two industrial engineers reviewing wiring diagrams at an open electrical panel
    Engineering Capabilities

    Industrial Electronics
    Repair Services

    Specialist component-level repair for PCBs, HVAC drives, and BMS. A high-precision technical alternative to full system replacement.

    01

    Control Board Repair

    Component-level diagnosis. No board too complex.

    Specialist repair of industrial control boards at component level — replacing failed capacitors, MOSFETs, and ICs rather than the entire board. We fix what others call unrepairable.

    Electronics technician at PCB diagnostics bench with oscilloscope and multimeter
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    What We Cover

    • Circuit-level fault diagnosis
    • BGA, SMD & through-hole replacement
    • Burned tracks & substrate repair
    • Power stage & driver circuits
    • Capacitor bank rebuilds
    • Microcontroller & IC replacement
    • Functional load testing
    • Technical report included

    Equipment & Brands

    Motor drivesInvertersIndustrial PCBsHVAC drivesPower suppliesServo amplifiers
    02

    HVAC Electronics

    Avoid total system replacement costs.

    Repair of HVAC inverter drives, control boards, and VFDs from all major OEMs. We restore systems to full spec and stop building-wide downtime fast.

    HVAC engineer inspecting industrial drive control panel in London plant room
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    What We Cover

    • Inverter & VFD repair
    • Control board & PCB repair
    • VSD diagnostics
    • Fan & compressor drives
    • Communication card faults
    • Sensor interface repair
    • Relay & contactor boards
    • Multi-zone controllers

    Equipment & Brands

    DaikinMitsubishiToshibaLGFujitsuYorkCarrierTrane
    03

    Industrial Electronics

    Obsolete gear specialists. No parts? No problem.

    Repair of legacy industrial controls and automation electronics where manufacturer support has ended. If parts are unavailable, we source equivalents.

    Maintenance engineer inspecting VFD and automation control boards in electrical cabinet
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    What We Cover

    • VFD & inverter repair
    • PLC & logic controllers
    • Servo amplifier & drives
    • DC motor drive repair
    • Industrial power supplies
    • HMI & display boards
    • CNC machine controllers
    • Obsolete gear specialists

    Equipment & Brands

    ABBSiemensAllen-BradleyFanucMitsubishiSchneiderYaskawaDanfoss
    04

    BMS & Automation

    Critical building infrastructure restored.

    BMS controllers and automation field devices repaired to restore building functions. We handle critical failures — HVAC to fire interfaces — with urgency.

    BMS building management control room with system schematics on monitors
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    What We Cover

    • BMS controller repair
    • Field device & sensor interfaces
    • MODBUS & BACnet cards
    • DDC controller repair
    • Relay & digital I/O boards
    • UPS interface repair
    • PLC I/O modules
    • RTU repair

    Equipment & Brands

    TrendHoneywellSiemensDeltaJohnson ControlsDistechSchneiderBACnet
    05

    On-Site Diagnostics

    We come to you — from £250 + VAT/hour.

    For plant-integrated equipment that cannot be moved. Engineers travel to your facility across London with full diagnostic equipment and component-level repair capability.

    Field engineer connecting diagnostic equipment to building automation system rack
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    What We Cover

    • Full on-site diagnostic kit
    • Component-level fault finding
    • On-site board-level repair
    • Firmware & parameter restoration
    • Real-world operating tests
    • Minimum operational disruption
    • London & South East coverage
    • Emergency response available

    Equipment & Brands

    Fixed plant gearEmbedded systemsLarge drivesInstalled BMSData centre electronicsNon-transportable gear

    Not Sure If We Can Fix It?

    Describe the fault and the equipment. Our engineers will confirm repair viability — no commitment required.

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