air conditioner will not turn off

[donald walker]

air conditioning unit (outside) cools properly...when room temperature reaches thermostat setting, blower fan inside turns off but outside unit continues to run....moving thermostat to a lower setting will turn on inside blower....moving thermostat setting to a higher setting will turn off inside fan...outside unit continues to run...have to cut breaker off at electrical panel to get outside unit to turn off...info on outside unit...Jenitrol...model CPl18-1EB..serial 910434429...208/230 volts...1phase....60hz...suggestions??  Thermostat/contactor at unit/thermostat wiring....etc...

[strumpfman]

I am not familiar with your specific unit as I do not live in the US, but your problem sounds pretty strait

forward. I think you have a contactor stuck in closed position in your outside unit. You will have to verify

that when you run the unit on a high temperature and there is no demand for cooling, the thermostat does

not send power to the coil of the contactor. If the is no power at the coil and the outside unit is running

simply replace contactor. Problem solved.

[lvasquez11]

Check voltage at contactor coils   28 volts should drop out when indoor unit shuts off