AC compressor not starting — Haarlem, Noord-Holland
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 Haarlem
Het vochtige zeeklimaat maakt verwarming en ventilatie cruciaal in Haarlem; de energietransitie stuwt warmtepompen, isolatie en ventilatie hard, al beperken krappe kavels en monumenten soms de plaatsing van buitenunits.
Who to call
For this problem in Haarlem, call a: Klimaattechnicus
Vind een Klimaattechnicus in HaarlemSymptoms 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 Haarlem
Spoeddiensten in Haarlem reageren binnen 25–50 minuten; de compacte monumentale binnenstad kan de toegang vertragen. Spoedtarieven rond €75–€175 voorrijden plus €70–€130/uur incl. btw.