Ductless Master

Ductless Master — The Ultimate Field Guide for Midea Ductless Systems
Ductless Master is the technical service companion built specifically for HVAC technicians working on Midea and Midea-manufactured ductless systems. Created by trade professionals at HVAC Pocket Pro, this app skips the dense engineering theory and delivers exactly what you need on the job: clear troubleshooting steps, how-to videos, wiring schematics, field-tested tips, and factory documentation — all designed to help you solve problems fast and get off the job site.
Whether you're commissioning a multi-zone mini-split or diagnosing an inverter board error on a crossover system, Ductless Master puts better-than-factory-grade intel right at your fingertips.
Interactive Hybrid & Crossover Configurator
Take the guesswork out of hybrid and crossover condenser setups. Answer a simple series of yes/no prompts to instantly receive:
Exact low-voltage and high-voltage field wiring diagrams
Precise outdoor unit DIP switch configurations
Jumper configurations and thermostat interface settings
Component-Level Troubleshooting & Video Guides
Stop guessing which board or sensor failed:
HD, technician-focused video walkthroughs for every Midea electrical and mechanical component
Written, step-by-step diagnostic workflows paired with real field meter testing
Error code breakdowns with prioritized causes and component testing values
Equipment Compatibility Wizards
Quickly verify equipment matchups and accessory compatibility:
Fast multi-zone head sizing combination checks to confirm proper indoor-to-outdoor capacity ratios
Verified accessory and interface module compatibility
Model compatibility
Quick-reference port sizing, flare torque values, and factory pre-charge calculations
Factory Document Library & Smart Search
Integrated smart search to instantly find answers by symptom, fault code, or part number
Always current with the latest manufacturer revisions
Broad Brand & White-Label Coverage
Comprehensive technical coverage across the full family of Midea-manufactured equipment, including:
Carrier
Bryant
Payne
Comfortmaker
ICP Family Brands (Tempstar, Arcoaire, Heil, KeepRite)
Other major Midea white-label mini-split and crossover systems
Built by technicians, for technicians. Keep Ductless Master in your tool bag to diagnose faster, wire accurately, and get the job done right the first time.