Air Conditioner Repair in Boulder

Boulder's push toward electrification means more homes now have air-source heat pumps or ducted heat pumps added to an existing furnace. These systems use reversing valves, electronic expansion valves, defrost controls and variable-speed inverter boards that an ordinary AC doesn't have. A heat pump that cools poorly may have a stuck reversing valve or a sensor fault rather than a refrigerant problem.

Because a heat pump runs most of the year, small issues like a weak outdoor fan motor or a failing defrost sensor wear the system much faster than a cooling-only unit. Catching them during a summer repair call can prevent a winter breakdown.

Wildfire smoke has become a regular part of Front Range summers, and many homeowners respond by installing high-MERV filters. That's good for air quality, but a dense filter in a return that was already undersized can reduce airflow enough to freeze the coil or overheat the blower motor. Filters also clog much faster during smoky weeks.

If your AC started icing up or blowing weakly after a filter upgrade, we can measure the pressure drop and recommend a filter size or cabinet setup that cleans the air without choking the system.

We check power, controls, the capacitor and contactor, then measure refrigerant pressures, superheat and subcooling, indoor airflow and temperature split. For inverter heat pumps we read the board's fault history before replacing parts. If there's a refrigerant leak, we look for it rather than topping off the charge and leaving.

Pricing is flat-rate and given before work starts, with no overtime fees, and the diagnostic is free when you approve the repair. Our trucks carry common parts for Trane, Lennox, Carrier, Goodman, Bryant, Rheem and other major brands.

A capacitor, contactor, fan motor or drain problem is worth fixing on almost any system. If an older straight AC has a failed compressor or a leaking coil, local rules make replacement worth considering. The city has steered its rebates toward heat pumps, and Boulder County has run a group-buy program called Switch Together for heat pumps. Replacements require a mechanical permit from Planning & Development Services and must follow the 2024 city energy code. Xcel Energy is the electric utility, so check its current heat pump rebates as well.