Mine failed about a year ago. I found a control module online for around $90, but my compressor was shot, so I replaced the whole cold machine which was around $1100 and added up to $2000 something once you added paying someone to install it. I bought a control module first and attempted to replace it myself, but it did not solve the issue, so I can't verify the source. See if you can find a model number on your controller. You can search for "101n0210 danfoss" which I think was the one mine had, but it was discontinued and I think you would have to try a later model which may be the "101n0212" but I am not 100% sure.
Anyway, I hope that helps.
-Eric
Anyway, I hope that helps.
-Eric