Conducting paste on temperature sensor

[rieverjohn]

In the servicing instructions for a Potterton Suprima 50 boiler, section 4.3 9
the procedure is listed:
1/ Disconnect wires from sensor.
2/ Depress the clips on the outside of the sensor and pull it clear of the pipe.
3/ Re-assemble in reverse order, use fresh conducting paste.

Where do you apply the paste?

 

[Gasman77]

You shouldn't be inside the combustion chamber unless you are a RGI.

If you are a RGI, you need to go back to college.

Do yourself a favor and get someone in who knows what they are doing before you injure yourself and others a.k.a....

RGI

 

[spraggo]

You apply the paste between the sensor and the pipe

 

[MJN]

It needs to go between the face of the thermistor and the pipe (or whatever it's mounted on).

Don't overdo it - a thin smear is all that's required. The purpose of the paste (thermal grease) is to fill imperfections on the mating surfaces and provide good thermal conductivity between the two.

Mathew