Heat Pump Repair in Littleton

Heat pumps installed before about 2010 often use R-22, a refrigerant no longer produced. Any repair that needs refrigerant gets expensive quickly, and a leaking R-22 system is rarely worth recharging. Electrical repairs like a capacitor or contactor can still keep one running another season while you plan.

When a Littleton condo owner replaces an R-22 system, the HOA may have rules on equipment size, location and noise. We check those before we quote.

Rangeview, Broadmoor and Woodlawn filled in during the city's postwar boom, when the population grew nearly eightfold in twenty years. When owners replace a failed AC with a heat pump and keep the gas furnace, the result is a dual-fuel system. Faults we see include a switchover temperature left at a default, an outdoor sensor that has failed, and small 1950s ducts that limit airflow.

Our dual-fuel article covers how that setup is supposed to work.

Panels in those houses are often small. If the heat pump was paired with electric strips instead of the gas furnace, a cold morning can overload a 100-amp service. We check strip amperage and breaker size and tell you if an electrician is needed.

With a 4°F design temperature in Arapahoe County, Littleton heat pumps defrost regularly through the winter. A defrost cycle should last a few minutes and leave the coil clean. Ice that keeps building, a fan that stops for long periods or a unit that blows cold air indoors for more than 10 minutes all point to a defrost sensor, board or reversing valve problem. Roof drip onto the unit is also a common cause in older neighborhoods.

Within the city, replacement permits come from the Littleton Building Division. Many addresses with a Littleton mailing address, such as Ken Caryl, Columbine and Roxborough Park, are actually unincorporated and fall under their county. We confirm jurisdiction before filing.

A qualifying replacement in an occupied home or condo can bring in $1,500 through the DRCOG program and $1,000 from the state. Xcel rebates changed October 1, 2026, so confirm the amount. The federal 25C credit has ended.