Ac Unit Contactor Keeps Burning Out

This could be a sign that the contactor has melted leaving the air conditioner with no means to block electricity.

Ac unit contactor keeps burning out.

2 there is no short cycle protection in the thermostst or the condenser. This message has been edited by pinemarten edited 09 08 2003. The air conditioning capacitor is designed to get the compressor and fan motors up to about 3 4 of running speed and then disengage. Fan is pulling the correct rpm s ck for a kink in.

If the contactor in your ac unit fails the compressor can t send out the refrigerant needed. Hope that your system has a low voltage fuse in the line so that it does not hurt any other components on your air conditioner. All you need is a flathead screwdriver. 1 the system uses or can use an option a compressor crankcase heater.

Remove the feet from the unit by unscrewing. Make sure you don t have a restriction and over working the compressor make sure you have a good connection on the cap lugs. Contactors keep burning out. From the contactor disconnect the wires.

If the motor becomes physically blocked from turning or if the motor burns out the capacitor will probably overload and be destroyed. While replacing keep in mind the specifications of the original component and replace with one which matches all those. Since you don t want the air conditioner to fail during the hottest months of the year pay attention to these symptoms of a bad ac contactor. As a result your ac won t turn on.

Make sure your cond. If the armature is sticking or catching on something then it would have the double effect of not closing the contacts all the way so they burn out and burning out the coil because the air gap isn t closing. Most modern t stats have the protecton built. The condenser unit never shuts off.

Yes the contactor coil can cause a low voltage short in a system and cause the low voltage transformer to burn out. The relay switch that sends electricity to your air conditioner s compressor is known as a contactor. It is not designed for a continuous electrical load.