There are many appliances with compression refrigeration circuits that do not have ports installed for testing, recovery, charging, and evacuation.  These can include window units, PTACs, fountains, refrigerators, and much more. This fact presents a challenge any time you suspect or know there is a refrigerant circuit issue. How can you diagnose and repair when […]

  One of the most common mistakes I hear techs make is confusing zero ohms with infinite ohms. The fuse above is showing near-zero ohms, which indicates a good electrical path with very little resistance. If there is a perfect path, it would have zero ohms (which isn't actually possible unless you happen to be […]

Trigger Warning: This article isn't specifically about air conditioning, and it includes a markedly Christian worldview. If you would prefer that I  “stick with the A/C stuff, preacher boy,” then this is one you should skip—or not 🙂  Also, it's my birthday this week, so give me a pass.  Today, families all across the country […]