A complete professional AC tune-up sequence: filter and blower inspection, evaporator and condenser coil cleaning (chemicals, rinse direction, fin care), condensate drain service, electrical inspection (contactor pitting, capacitor testing against spec), temperature split measurement, and amp draws vs. nameplate. Includes the tune-up checklist and what readings go on the customer report. The Cooling Tune-Up SequenceAirflow […]

Furnace side: filter/blower service, flame sensor cleaning, inducer and pressure-switch checks, heat exchanger inspection awareness (and when to escalate — this is a safety call), and sequence-of-operation observation. Heat pump side: defrost cycle basics, auxiliary heat staging, and reversing valve awareness. Covers CO safety fundamentals throughout. The Heating Service Visit, In OrderGas furnace first, heat […]

The skill that separates parts-changers from techs. Covers 24V control circuits (thermostat wiring, transformers, contactor and relay logic), reading a basic ladder diagram, capacitor and contactor testing with a meter, safe voltage checks, and the most common electrical failures by component. You’ll practice the diagnostic habit: is it a power problem, a control problem, or […]

The calls that fill every summer and winter board: no-cool (start with airflow, then electrical, then refrigerant-circuit symptoms), frozen coil decision tree, no-heat by ignition type, short-cycling causes, water leaks, and thermostat issues. Each call gets a step-by-step flow with the most likely causes first. Emphasis on verifying the fix with readings before leaving. Working […]

Covers superheat/subcool at concept level (what they indicate, when to flag for a senior tech or EPA-certified work), static pressure measurement as the airflow report card, and building a clean service report: readings, findings, photos, recommendations. Ends with honest options-based customer communication — repair vs. replace framing without pressure tactics. Certificate of Completion included. Building […]