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Articles and Tips
All Articles and Tips
Aunt Bette's Homemade Pecan Pie
Rockin’ Rocky Road Ice Cream
Tom’s Heavenly Apple Strudel
Joe’s Divine Butter Tarts
10 Reasons Why a Mini-Split Ductless Flare May Leak Refrigerant!
10 Reasons a Blower Fan Won't Start in a Furnace, AC or Heat Pump
20 Causes of Low Indoor Airflow on Ducted HVAC Units!
40 Vacuum Tips for HVACR Technicians! Avoid Frustration!
6 Reasons Why a Furnace Blower Fan Motor Won’t Shut Off!
ATTIC FANS! Troubleshooting Common Problems!
Adjusting the Airflow Speed on ECM Blower Fan Motors! (Variable & Multi-Speed Types)
Adjusting the Furnace/AC Airflow Speed on a 120v PSC Blower Motor!
An Additional Valve Core Removal Tool for your Vacuum Gauge! (Quick Tip)
Can I measure a Negative Subcooling When Checking the Charge? (Quick Tip)
Can you Braze Mini-Split systems instead of Flaring them?
Charging a System in a Dry Climate? Consider a TXV and Accumulator!
Checking the Charge of Air Conditioners without Measuring Pressure!
Checking the Charge of a Mini-Split Unit!
Clogged Liquid Line Filter Drier?
Connect Your Gauges Sooner Than Later! (Quick Tip)
Copper Tube Bending Tools and Methods
Copper Tube Swaging and Deburring Tools!
Determining the Cause of a Liquid Line Restriction Problem!
Don't Get Locked Out! Locking Port Cap Quick Tip!
Ductless Mini-Split Step-by-Step Installation
Filter Drier, Solenoid Valve and Liquid Line Sight Locations in a Refrigeration System
Finding a Low Voltage Short Quickly, Step by Step!
Finding an Airflow Problem using Static Pressure Measurements!
Free Shrader Valve Refrigerant Leak Tester (Quick Tip)
Fridge or Freezer Compressor Not Starting? Test Start Relay, Overload, Capacitor, PTC Thermistor
Gas Furnace Electrical Safety Switch Testing!
HVAC DELTA T (ΔT) Explained for Air Conditioners!
HVAC Electrical Training Board For Wiring, Components, Wiring Diagrams, Troubleshooting
Heat Pump Pressure Switches
How NOT to Check the Refrigerant Charge!
How the Gas Pilot Light Functions and 10 Reasons Why the Pilot Light Goes Out or Won’t Stay Lit!
How to Find Common, Start, and Run on a PSC Compressor Motor!
How to Tell if a TXV Has Lost Part of its Bulb Charge! (Quick Tip)
Is There an Easy Way to Tell if a Mini-Split Ductless Unit is Low on Refrigerant? (Quick Tip)
Is a Triple Evacuation Necessary for a Deep Vacuum?
Measuring Negative Superheat on an Air Conditioner? (Quick Tips)
Measuring a Liquid Line Restriction Problem!
Newer Methods that Make us Better Techs and Reduce Labor and Frustration! Top 15!
Pressure Testing Gas Lines for Leaks! Natural Gas and Propane (LP)
Protect Your Micron Gauge! (Quick Tip)
R-22 and R-410A Operating Pressures, Charging and Recovery Setup!
Recovery Bottle Weight
Should I Check the Refrigerant Charge with Superheat or Subcooling?
Suction Line Accumulator Tank Function, Location, & Purpose
Superheat vs. Total Superheat
TOP 5 HVAC CONTACTOR Troubleshooting Problems!
TXV Bulb Mounting Position and External Equalization!
Testing if an HVACR Compressor is Shorted to Ground, Open, or the Thermal Overload is Tripped!
The Benefits of Using an Ultrasonic Leak Detector to Find Refrigerant Leaks!
The HVAC Subcooling Charging Method, Explained!
The Total Weight Method
Tips For New HVACR Instructors with Ty and Craig!
Top 10 Gas Water Heater Pilot Light Problems! When It Won’t Stay Lit!
Top 10 Thermostat Related Problems
Top 4 Reasons Why a Gas Furnace Short Cycles
Top Ten Interview Tips to Land that HVAC/R Job!
Troubleshooting a Cad Cell Flame Detector for an Oil Burner!
Troubleshooting an Air Conditioning System with a Frozen Evaporator
Troubleshooting an HVAC Control Board? How?
Understanding Triple Evacuation
Using the Total Superheat Charging Method for HVAC Units!
What Components are in a Forced Air Gas Furnace? What do they Do?
When Installing or Replacing an Air Conditioner, Use These Procedures for the Refrigerant Tubing!
Where To Find R-22 & R410A Leaks on AC Units! Top 10 Spots!
Why Can’t You Just Measure Pressures to Check a Refrigerant Charge?
Why Do Some Evap Coils Leak While Others Do Not? (Quick Tip)
Why a Start Capacitor Fails and Testing!
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