Bosch sps40c12gb heat pump grey wires

[Oops broke it]

Hi, while disconnecting the grey wires from the heat pump I have pulled them out the connector, I have traced them back to the controller but not sure in what order to reconnect them. Can’t seem to find a diagram online. Any help would be appreciated.

[electrofix]

assume you mean the very small connector with 3 grey ? wires

if yes

there is no diagrams but I seem to recall the pins line up so pin 1 to pin 1 etc

this is only connecting to 2 temp sensors on the motor so things should not get damaged if you get it wrong

Dave

[Oops broke it]

Hi Dave,

Yes, the grey wires. They are numbered 3,4 and 5 from the controller but nothing on the pump. So do I just simply put them in the order they come out of the controller? Eg. Left on controller to left in the connector.

Thanks for replying.
Martin

[electrofix]

yes I would try that and see what happens

Dave

[TrevorM]

I have found this post as I have done exactly the same thing. I guess it was too much trouble for the OP to come back and confirm that the order of the wires was correct. I have copied the above and it seems to be working OK for me.

[Author]

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