Mini Split Repair Near Malden, MA

Reliable, High-Quality Mini Split Repair That Restores Comfort—Fast

Mini Split Repair and Malden MA’s Trusted Heating & Cooling Professionals — Your Local Experts

When your ductless system falters, SumZero Energy Systems delivers Mini Split Repair the right way: we begin with a thorough diagnostic to read system error codes, test electrical components and control boards, measure refrigerant charge and temperatures, verify airflow, inspect indoor and outdoor units, and check filters, coils, and condensate drains; then we correct the root cause—clearing clogs, cleaning coils, sealing refrigerant leaks, replacing sensors or fan motors, recalibrating controls, and confirming performance with a full test run. We quickly resolve common issues like weak cooling or heating, frozen coils, refrigerant leaks, clogged filters, drain line backups, short cycling, noisy operation, thermostat or sensor faults, and communication errors between heads and the condenser. Beyond repairs, we offer comprehensive services including mini split installation and replacement, multi‑zone system design, seasonal maintenance and tune‑ups, heat pump solutions, indoor air quality upgrades, smart thermostat integration, and broader HVAC repair and optimization. Count on our “exceptional service,” “quality craftsmanship,” transparent communication, and dependable scheduling to get your comfort back on track—proudly and professionally serving the Malden, MA area.