Ptc start device and overload

Hi,

I disovered a few days ago that the ptc start device on my maytag side by side had burnt out. Bought the realy assemly kit and fitted it last night. Frreezer cooled nicely and made ice. This morning though, the fridge started tripping out the house electrics. Turned the fridge off and went to work. Plugged it back in after work and the fridge started up and compressor buzzed. After 30 mins went to check on it and i found that the compressor was very hot and not running. Let it cool down and did a bit of investigation. Turned it back on, compressor buzzes and after about a minute i discovered that the 4tm overload was tripping and turning off the compressor, which was just a bit warm. I have done a wiring test to the compressor and i get readings of 10, 18 and 28.

Any thoughts greatly appreciated. Thanks