Troubleshooting a Stuck 2-Pole Contactor in Your A/C Condenser If your air conditioner isn’t working properly, a stuck 2-pole contactor in the condenser unit might be the culprit. This critical component controls power to your compressor and fan motor, and when it sticks, it can lead to overheating, continuous operation, or failure to start. Common Signs of a Stuck Contactor: \t•\tA/C runs continuously or won’t turn on. \t•\tBuzzing or humming noises from the unit. \t•\tBurnt or pitted contacts
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