AC not working: new contactor and a deep condenser coil clean
Last updated Reviewed by Waseem Shahzad, Lead Technician
Farmingdale, NYAC RepairTechnician: WaseemApril 2026
The air conditioner was not working. We replaced the contactor and chemically cleaned the condenser coil with the jacket removed.
What the homeowner reported
The homeowner reported that the air conditioning unit was not working.
What we found
The contactor in the outdoor unit needed replacing, and the condenser coil was heavily soiled.
What we did
Waseem replaced the contactor and performed a chemical coil wash on the condenser, removing the unit's jacket to reach the coil properly.
The result
After the contactor replacement and the coil cleaning, the air conditioner was working properly.
Job details are from our April 2026 service record for this Farmingdale home. Customer details are left out.
General information, not details from this job
About contactors and dirty coils
The contactor is the switch that powers the compressor and outdoor fan when the thermostat calls for cooling. Its contacts pit and burn over time, and when they stop closing the outdoor unit simply does not run. A dirty condenser coil is a separate problem with the same symptom over time: the system cannot reject heat, pressures climb and parts wear faster. Removing the jacket lets the coil be cleaned from the inside out, which reaches the dirt a hose from outside only pushes deeper.
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