This app helps HVACR technicians diagnose and resolve system issues. It guides users through common symptoms, identifies potential causes, and recommends solutions. An offline database is available for use in remote locations.
3.7(3 ratings)
Free
Top Picks for Hvac Troubleshooting
Electrical Troubleshooting MS by David White
Are you a good troubleshooter?Strong Contender
📚 Education
4.7(62 ratings)
Free
Learn to troubleshoot electrical circuits with a virtual voltmeter and PLC logic. This app offers 17 random electrical problems for a challenging learning experience, allowing you to practice identifying issues in motor starters and control circuits.
4.6(5 ratings)
FreeIn-App Purchases
This app provides HVAC and refrigeration technicians with AI-powered diagnostic assistance, duct sizing calculations, and job estimation tools. It offers step-by-step troubleshooting, airflow analysis, and photo-based equipment support to streamline service calls.
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4
SuperCool Slide Rule HVAC
by Designstein, llc
Free
This app offers a comprehensive suite of tools for HVAC technicians. It provides interactive guides, step-by-step repair instructions, and calculators for various HVAC calculations including superheat, subcooling, and duct sizing.
Superheat & Subcooling chargingDuct sizing & layout calculatorCompressor windings troubleshooter
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free5
Bluon HVAC
HVAC Tools
Free
Access a vast database of HVAC models, manuals, and part lists to speed up your work. Utilize an AI-powered troubleshooting tool or connect with experienced technicians for real-time support.
500,000+ HVAC unit databaseManuals and part listsAI troubleshooting tool (MasterMechanic)
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ad-supported6
HVACR Check & Charge
PT Charts Superheat Subcooling
Free
This app provides an instant mobile refrigerant charge calculator for HVACR applications. It supports various refrigerants and allows users to calculate the correct system charge based on superheat, subcooling, or airflow, along with environmental conditions.
Instant refrigerant charge calculatorSuperheat calculator (non-TXV)Subcooling calculator (TXV)
🔍 Reference
(17K)
free7
HVAC School
By Techs For Techs
Free
This app serves as a comprehensive resource for HVAC technicians, offering a podcast, tech tip articles, and interactive calculators. It aims to enhance knowledge of HVAC theory, industry updates, and essential mathematics for both current and aspiring professionals.
HVAC School podcast episodesTech tip articles by professionalsInteractive HVAC equation calculators
📚 Education
(81)
free8
CE HVAC Pro+
HVAC Tools
Free
This app provides HVAC technicians with instant access to product information, including warranty status, inventory, and technical specifications. It offers real-time support, order tracking, and helpful calculators to streamline job management and business growth.
Real-time product availability & pricingOrder status and notificationsVideo/Text technical support
📊 Productivity
(1.6K)
free with in-app purchases9
HVAC Exam Prep 2026
Pass HVAC Exam & Practice Test
Free
Prepare for your HVAC technician certification exam with a comprehensive mobile study tool. It offers a scientific study system, over 1,700 practice questions with detailed explanations, and simulated exams designed by experts. Track your progress and boost confidence for your first attempt.
1,700+ specialized questionsDetailed explanationsSimulated exam quizzes
📚 Education
(93)
subscription10
HVAC Test Prep Practice 2026
Practice HVAC Exam Questions
Free
Prepare for your HVAC certification exam with a comprehensive practice test simulator. Access over 1,500 questions with detailed analysis and track your progress. Get ready to pass with confidence.
HVAC exam preparation1500+ relevant questionsDetailed answer analysis
📚 Education
(7)
freemium11
Carrier® Service Technician
by Carrier Corporation
Free
This app helps HVAC/R technicians quickly identify and locate necessary parts for repairs on any equipment, whether for warranty or non-warranty services. It offers advanced tools for troubleshooting, system calculations, and accessing technical documentation, all from the job site.
AI Assistant for troubleshootingSystem Capacity CalculatorIntelligent Equipment Search
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free12
HVAC Know It All
by HVAC Know It All Inc.
Free
Connect with HVAC/R professionals to enhance your skills through educational discussions. This app aims to help technicians, installers, owners, educators, and students improve their expertise in the trade.
Educational discussionsProfessional networkingSkill enhancement
📚 Education
(221)
subscription13
SkillCat: EPA 608 & HVAC
Accredited Online Trade School
Free
This app offers accredited online trade school courses and certifications for HVAC, plumbing, electrical, and more. Learn at your own pace, on your phone, and earn valuable credentials like EPA 608 and OSHA-10 without traditional school debt.
EPA 608 & 609 CertificationAccredited Trade School DiplomasOSHA-10 Certification
📚 Education
(8.2K)
subscription14
Daikin Tech Hub
by Goodman Global Holdings, Inc.
Free
This app provides Daikin service contractors with instant access to all technical and service information for Daikin products. It includes product specifications, manuals, error code troubleshooting, interactive field settings, and service videos. The app works online and offline, syncing data automatically for the latest updates.
Product Technical SpecificationsAll Documents in one placeError Codes with troubleshooting
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free15
Rheem
Connect . Install . Service
Free
This app streamlines HVAC installation and service for contractors. It offers Bluetooth connectivity for system setup and troubleshooting, along with comprehensive support for product information, warranty tracking, and locating resources.
Bluetooth setup and troubleshootingSystem monitoring and status checksAlarm diagnosis and history
🔧 Utilities
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free16
NATE Practice Test 2026
HVAC Technician Certification
Free
Prepare for your NATE certification exam with realistic practice tests and AI-powered study guidance. This app covers all NATE specialties, offering detailed explanations and progress tracking to help HVAC technicians and students master essential concepts and pass their exams.
Realistic NATE practice testsStudy by HVAC specialtyAI-powered study assistant
📚 Education
(327)
free with in-app purchases17
HVAC Super Tech
The Ultimate HVAC Tech Support
Free
This app provides certified-level HVAC technical support, offering fast troubleshooting for error codes and system faults. It features smart image analysis for diagrams and hands-free voice assistance for technicians.
Fast error code diagnosisSystem fault analysisImage analysis of diagrams
📊 Productivity
(2)
subscription18
TechAI
by ANTHONY,MASON ARGILA
Free
This intelligent assistant provides HVAC technicians with instant access to equipment manuals, troubleshooting guides, and expert knowledge. Quickly look up error codes, find specific manual information, and access general HVAC concepts. It offers unlimited chat history and a dark mode interface for ease of use.
Equipment manual searchError code lookupHVAC knowledge base
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(5)
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Ruud
Connect . Install . Service
Free
This app streamlines HVAC installation, service, and support for contractors. It offers Bluetooth connectivity for system setup and troubleshooting, along with access to product information, warranty tracking, and dealer locators.
Bluetooth setup and troubleshootingSystem operating parameter monitoringAlarm diagnosis and history
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Contactor - HVAC Portal
HVAC Assistant for Techs
Free
This app connects HVAC technicians with local suppliers, offering real-time refrigerant pricing, appointment booking, and a community forum. It streamlines daily tasks for professionals by providing essential tools and information in one place.
Live refrigerant pricing lookupSupplier map & contact profilesEasy appointment scheduling
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(2)
subscription