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You have a limit switch gone bad check switches with power on it should read like .023... a closed switch
If it reads 24v its bad. When they go bad the blower stays on as a safety device telling...

Can you tell me when troubleshooting hvac tech will check voltage 240 v on outside condensing unit . Then he took 1 probe and touch a ground screw and put the other probe on one side of contactor...

Hi I saw your answer on hvac contactor casn you please explain some definitions for me. 1. break one side of contactor 2. As the contactor pulls in and out, it breaks power to the compressor 3....