Blogs about: Diagnosticsheat Pumps
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Diagnosing R-410A Systems
Well heat pump fans, here it is. An up close and personal look at a 410A heat pump system in action. Normal operation vs fault condition numbers in the cool cycle. There’s no audio with the vid,… more →
WayneShirley.com
Diagnosing R-410A Systems
wrote 1 month ago: Well heat pump fans, here it is. An up close and personal look at a 410A heat pump system in action. … more →
Ultrasonic Leak Detectors...Amended Comments
wrote 5 months ago: A while back, I did a post on my thoughts as to leak detectors and leak detection methods, in which … more →
Refrigerants vs Refrigeration
— 5 comments
wrote 8 months ago: I continue to get the occasional question, worded something like, “..Hey, do them videos tell … more →
Air Flow and Duct Design
— 4 comments
wrote 8 months ago: Airflow across the indoor coil on residential heat pumps, or straight cooling systems, is always a t … more →
Troubleshooting: How Stuff Works...and Breaks
— 1 comment
wrote 10 months ago: So, maybe you’re thinking troubleshooting heat pumps is about Ohm’s Law, psychrometric charts, Molli … more →
R-410A...Ready or Not?
— 2 comments
wrote 10 months ago: Just in case someone hasn’t been keeping up, 12/31/09 is the last day for legal manufacture of … more →
For Technicians Only...
— 2 comments
wrote 1 year ago: ..and I should add, techs who are a little weak in diagnostics. We always credit experience for expe … more →
TROUBLESHOOTING HEAT PUMP SYSTEMS...INDOOR / OUTDOOR TEMPS VS SUPERHEAT W/ FIXED ORIFICE SYSTEMS
— 18 comments
wrote 1 year ago: ..If you look at a superheat charging chart for a fixed orifice system, you quickly see the required … more →
TROUBLESHOOTING HEAT PUMP SYSTEMS...R-22 VS R-410A
— 34 comments
wrote 1 year ago: Unless you’ve been living under a rock for the past several years, you know R-22 is on the way out a … more →
TROUBLESHOOTING HEAT PUMP SYSTEMS...OPEN CONTROL VOLTAGE CIRCUITS
— 11 comments
wrote 1 year ago: One of the more frustrating and difficult situations with heat pump diagnostics is open circuits in … more →
TROUBLESHOOTING HEAT PUMPS SYSTEMS...REFRIGERANT LEAK DETECTION DEVICES
— 5 comments
wrote 1 year ago: No doubt, my most frustrating service issue has been locating refrigerant leaks. And I’ll be the fir … more →
TROUBLESHOOTING HEAT PUMPS...DIAGNOSING PSC MOTORS
— 4 comments
wrote 1 year ago: A common failure with residential equipment condenser and blower motors is not actually the motor, b … more →
TROUBLESHOOTING HEAT PUMP SYSTEMS / RECOGNIZING LOW AIRFLOW
— 6 comments
wrote 1 year ago: One of the more common problems found in service work is low airflow across the indoor coil. This si … more →
TROUBLESHOOTING HEAT PUMP SYSTEMS...RESTRICTED LIQUID LINE FILTERS
— 1 comment
wrote 1 year ago: Liquid line filters occasionally restrict for whatever reasons, resulting in a significant pressure … more →
TROUBLESHOOTING HEAT PUMP SYSTEMS...LIQUID / VAPOR LINES
— 11 comments
wrote 1 year ago: One common mistake beginners make with split system heat pumps is connecting to the service valves d … more →
TROUBLESHOOTING HEAT PUMPS...HEAT CYCLE HIGH HEAD PRESSURE
— 4 comments
wrote 1 year ago: The search terms used in navigating to the blog are still providing subject material for posts. A re … more →
SUPERHEAT AND AIRFLOW
— 4 comments
wrote 1 year ago: Superheat is the term used to express the increase in temperature of the refrigerant vapor before it … more →
SYMPTOMS OF OVERCHARGED SYSTEM
wrote 1 year ago: The symptoms of an overcharged system differ with the type of metering device feeding the evaporator … more →
TXV SENSING BULB CHARGE
— 6 comments
wrote 1 year ago: TXV sensing bulbs are charged with the same type refrigerant as the system the TXV is used with. Thi … more →
