There are multiple ways a thermostatic expansion valve (TXV) can become restricted. Remember that a TXV becoming partially restricted will have the same symptoms as a restriction anywhere in the ...

Charging a refrigeration system is one of the most challenging and puzzling tasks a service technician will face. How much refrigerant a technician should put into a system when charging is a tough ...

This ain't no installation tech feature (though we may get to that in the near future), but it's more an overview of air conditioning systems, how they work, why they sometimes don't work, and how to ...