A B. Carlson maintenance visit is a full diagnostic, not a filter swap. The technician cleans coils, tests electrical components under load, verifies refrigerant charge or gas combustion, measures airflow and performance, checks every safety control, and gives you a written report of anything trending toward failure.

Inspection and Cleaning

  • Clean the outdoor condenser coil and clear debris, weeds, and cottonwood from around the unit
  • Inspect and clean the indoor evaporator coil and blower wheel
  • Flush the condensate drain line and check the pan for standing water or biological growth
  • Check or replace the air filter and note how fast it is loading
  • Inspect accessible ductwork and the air handler cabinet for leaks

Electrical Testing

Capacitors are tested under load against their rated microfarad value — a capacitor reading low is the single most common cause of a summer no-cool call, and it costs little to replace early. We also inspect and tighten connections, check the contactor for pitting, measure amp draw on the compressor and both motors, and verify the disconnect and breaker are sized correctly.

Performance Verification

On cooling equipment: refrigerant pressures, superheat and subcooling, and the temperature split across the evaporator coil. On heating equipment: gas pressure, burner operation, flame sensor microamps, ignitor resistance, and a careful heat exchanger inspection for cracks. On thermostats: calibration and staging.

Safety Checks

Combustion analysis and carbon monoxide testing on any gas appliance, verification of every limit and safety switch, and confirmation that venting and combustion air meet code. This is the part homeowners cannot do themselves and the part that matters most.

What You Get Afterward

A plain-language summary of system condition, anything measured out of spec, and any component trending toward failure — with pricing, so nothing is a surprise later. Small adjustments are handled during the visit. Larger items become a repair quote you can approve or decline.

Care Club members get both seasonal visits, member pricing, and priority scheduling. Contact B. Carlson to book maintenance in Albuquerque or Santa Fe.