Notes from the field

Plain answers on air conditioning, heating, heat pumps, mini splits, ducts and thermostats.

Page 10 of 10

The tech should put gauges on the refrigerant, a meter on the capacitor and a thermometer on the air. Which tasks are real work and which are filler.

Four steps from the phone call to the written quote, what gets tested, and why the fee is credited back to you if you go ahead with the repair.

In-duct filtration catches particles, not cooking odors or traffic fumes, and it will not fix a return duct leaking in a 130-degree attic.

One soft click is a relay closing and it is normal. Rapid clicking, a click with no response, and a click from the furnace each mean something else.

MERV 13 catches smoke-sized particles if your blower can pull air through it. How to set the fan, close off outside air, and what makes it worse.

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Licensed #1119892 · Veteran-owned · Pasadena & Reseda