Hi I'm a refrigeration and aircon techncian, I'm working on a brivis ems20 external, the problem was to chage the loom return air thermister, the part has been upgraded and I'm just having troubles fitting it? Help would be much appreciated thank you

Please post info and diagrams for the old and new parts. It is very difficult for us to guess on these issues.

Yeah ill try get pictures of the parts, the old part has 3 wires coming out of it and the new part has 2 wires just like a normal thermister with a plug but there's no connection for it. Sorry about my limited information. This was an error 35 h1.