Ocean HVAC Lab

How to Identify C, S, and R Terminals on an AC Compressor

When checking a single phase AC compressor, one of the first things you may need to…
Capacitor Check – Step-by-Step Explanation

Before replacing a capacitor, it’s critical to test it correctly and safely. This guide walks through…
Capacitor in HVAC Systems

Capacitor in HVAC Systems A capacitor is one of the most common electrical components found in…
No Cool / Failed Condenser Fan Capacitor / Disconnect Re-Secured

Found failed 7.5 MFD condenser fan motor capacitor on an aftermarket rescue motor setup. Replaced capacitor,…
No Cool / Failed Dual Capacitor (Compressor Side)

Indoor unit and outdoor fan were running, but the system was not cooling because the compressor…
Blank Thermostat / Clogged Condensate Pump / Drain Backup – No Cooling on a Nest System

A blank Nest thermostat led to a deeper drainage issue. This no-cooling call turned out to…
How I Organize HVAC Openings in Excel for Field Coordination

How I organize HVAC openings in Excel for clearer field coordination and more traceable opening decisions.
Dead Thermostat Batteries / Condenser Fan Squeaking – Cooling Call Delay

A no-cool call initially appeared to be a failed outdoor unit, but the root cause began…
Outdoor Unit Not Running / Loose Disconnect / Dirty Filter

Cooling call was present, but the outdoor unit was not running. A loose disconnect connection and…
10 Foot Separation Between EA and OA

Exhaust fan too close to outdoor air intake causing re-entrainment