Component-Level Diagnostic & Repair Services Catalog
Select your service below to inspect lab testing procedures, diagnostic pricing, supported brand models, and doorstep courier pickup options.
Industrial Chiller & Package AC Microprocessor Controller Board Repair
Industrial-grade laboratory testing and refurbishment of water-cooled and air-cooled chiller microprocessor control systems. We diagnose analog-to-digital converter stages, relay output…
Front Load & Top Load Washing Machine BLDC Inverter PCB Repair
High-precision micro-soldering and bench testing for brushless DC (BLDC) direct-drive washing machine inverter boards, pressure frequency decoders, and power stage…
Solar Hybrid Inverter & MPPT Charger PCB Repair
Laboratory diagnostics and heavy-duty IGBT replacement for solar hybrid and off-grid inverter systems, including high-efficiency MPPT buck-boost controller stages.
Universal Inverter AC Motherboard Kit Conversion & Adaptation
Complete adaptation of modern universal inverter air conditioner controller systems for discontinued, imported, or obsolete inverter split AC units, preserving…
Inverter AC IPM Module & High-Voltage IGBT Stage Overhaul
Precision infrared desoldering and OEM replacement of Intelligent Power Modules (IPM) and IGBT stages. Each repaired board is cleaned with…
Inverter AC Optical Communication Circuit & Signal Calibration
Specialized oscilloscope analysis of baud rate and square-wave serial communication between indoor evaporator and outdoor condenser. We install high-speed optical…
Inverter AC SMPS Switching Power Supply & Microcontroller Rebuild
Laboratory restoration of Switch Mode Power Supplies (SMPS) supplying stabilized 15V, 12V, 5V, and 3.3V DC rails to the main…
Window Inverter AC PCB Repair & Electronic Thermostat Calibration
Specialized bench testing and micro-soldering for window inverter air conditioner control boards and dual-display thermostat modules. We replace damaged motor…
Multi-Split AC Inverter Outdoor Drive & Branch Box PCB Repair
Component-level diagnostics and bench testing for multi-split inverter outdoor condensing units and electronic branch selector boxes. We restore independent indoor…
BLDC Indoor & Outdoor Fan Motor Driver PCB Repair
Specialized laboratory diagnosis of 310V/15V brushless DC (BLDC) fan motor drive circuits on inverter indoor and outdoor units. We replace…
Precision Microwave Oven Inverter Magnetron Power Board Repair
High-voltage oscilloscope testing and precision semiconductor replacement for inverter microwave power generation boards. We replace paired high-voltage IGBTs, damping diodes,…
Frost-Free Inverter Refrigerator PCB & Inverter Drive Repair
Component-level restoration of smart inverter and digital inverter refrigerator motherboards. We repair frequency modulation drivers, defrost timing logic, and SMPS…
Cassette & Ductable Inverter AC PCB Repair
Specialized diagnostic procedures for ceiling cassette and ducted inverter air conditioner electronic motherboards, including lift pump drive stages and centralized…
Commercial VRV / VRF HVAC Master Inverter Board Repair
Comprehensive testing and repair of multi-split VRV/VRF outdoor master inverter drive modules, active power factor correction (PFC) boards, and multi-drop…
VRV / VRF HVAC Master Inverter Board Repair & Commissioning
Specialized commercial HVAC multi-split inverter master motherboard repair for commercial towers, hotels, and corporate HVAC installations.
Cassette & Ceiling Concealed Duct AC Control Board Service
Dedicated testing and repair for ceiling cassette and concealed ducted inverter AC boards with electronic condensate pump and stepper motor…
AC Compressor Inverter Drive (IPM) & DC Fan Motor Board Repair
Precision high-power IGBT/IPM module replacement, gate driver rebuild, and current-sensing shunt resistor calibration for all inverter air conditioners.
Commercial Chiller & Package HVAC Electronic Controller Overhaul
Industrial HVAC microprocessor controller and central chiller PLC motherboard diagnosis, sensor calibration, and BMS gateway interface repair.
Inverter AC Communication Error (U4, E6, CH05, E464) Micro-soldering
Specialized oscilloscope-assisted communication circuit repair for U4, E6, CH05, and E464 faults between indoor and outdoor inverter boards.
Washing Machine Inverter Direct Drive (DD) Motor PCB Repair
Ultrasonic PCB restoration, IPM drive replacement, and water valve driver triac repairs for front-load and top-load inverter washing machines.
Refrigerator Linear Inverter Compressor Motherboard Repair
Linear and BLDC compressor driver board diagnostics, defrost heater switching circuit overhaul, and low-power SMPS power supply repair for frost-free…
Universal Inverter AC & Non-Inverter Conversion Board Installation
Turnkey universal controller kit supply and bench configuration with wireless remote, ambient temperature sensors, and wiring harness.
Emergency Same-Day HVAC Breakdown Diagnostics & Priority Courier
VIP priority bench triage for critical commercial facilities, server room ACs, and healthcare institutions with same-day express return courier.
Inverter Split & Window AC PCB Repair & Diagnostics
Oscilloscope testing and component-level micro-soldering for inverter split and window air conditioner motherboards. 100% full-load compressor dynamic bench tested.
No Matching Repair Service Found
We service almost all commercial & domestic inverter PCBs. Send a clear photo of your board directly to our diagnostic lab engineers on WhatsApp for instant confirmation.
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