AC compressor not starting — Warsaw, Masovian
When the outdoor AC unit hums, clicks, or stays completely silent while the indoor fan blows warm air, the compressor likely isn't starting. Common causes include a failed capacitor, a burned-out compressor motor, a tripped high-pressure switch, or low refrigerant levels. The compressor is the most expensive component in the system — running a failing one can cause total unit failure. An HVAC technician can diagnose whether the fix is a $150 capacitor swap or a compressor replacement that may justify upgrading the entire system.
Waarom dit veel voorkomt in Warsaw
Warsaw's continental climate with cold, snowy winters (-15°C to -20°C) makes reliable heating critical. District heating (ciepło systemowe) dominates, but individual buildings transitioning to heat pumps face infrastructure challenges.
Who to call
For this problem in Warsaw, call a: Klimaattechnicus
Vind een Klimaattechnicus in WarsawSymptoms to look for
- The outdoor unit hums or clicks but the fan doesn't spin and no cold air comes out
- The indoor blower runs normally but only pushes warm air
- The outdoor unit is completely silent — no fan, no compressor sound
- The circuit breaker for the AC unit trips repeatedly
- A clicking sound from the outdoor unit every few minutes as the compressor tries and fails to start
Spoeddienst in Warsaw
Emergency home services in Warsaw are available 24/7 with response times of 30–60 minutes. Emergency plumbing or electrical calls typically cost PLN 200–500 for the visit plus labor. Building managers (zarządcy) often maintain preferred contractor lists for common emergencies.