Contact pitting... Contactor wear and tear happens when electrical arcing takes place. The heat causes carbon build up and pits the contacts. This can lead to welded contacts, higher compressor amps etc. The Copeland Company SureSwitch switches on the zero cross of the alternating current sine wave and avoids arcing which avoids the problems noted above. #hvac #hvacr #refrigeration #hvacsystem #hvaclife #hvacsystem #hvacinstallation #hvaclife #hvacjourneyman #hvacservice #hvaccontactor #hvactips
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If an AC contactor still produces a humming or buzzing sound after replacement, the issue may not be the contactor itself. Low coil voltage, loose neutral, shading ring issues, unbalanced load, or control circuit faults can cause this problem. This video explains how to identify and troubleshoot these issues step by step in a simple way. ⚙️⚡#Electrical #ACContactor #ElectricalKnowledge #Troubleshooting #ElectricianTips | Bangla Electrical project
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