Air Conditioning And Heating Service & Installation By DJS | HVAC Services in Covina, CA 91724

Short-cycling is common here and often stems from a dirty air filter, low refrigerant charge, or an oversized system. It strains your unit and hikes up bills. We start with a comprehensive diagnostic to pinpoint the exact cause—be it a refrigerant leak, faulty thermostat, or airflow issue—and provide a targeted repair to restore normal, efficient operation and prevent further damage.

Heat pump efficiency loss in our climate can be due to refrigerant issues, dirty coils, or a failing reversing valve. We recommend a professional heat pump tune-up. Our service includes cleaning the indoor and outdoor coils, checking refrigerant levels, inspecting electrical components, and verifying the defrost cycle. This restores efficiency, ensures reliable heating, and can prevent a complete breakdown during cooler nights.

Consider replacement if your system is over 10-15 years old, requires frequent costly repairs, or your energy bills are climbing steadily. For Covina homes dealing with persistent short-cycling or severe efficiency loss, a new, properly sized system is often a more cost-effective long-term solution. We provide honest assessments, comparing repair costs to the efficiency gains and warranty of a new installation tailored to your home's needs.