Baxi 80e problem

[magpie197]

Boiler fires up and the red lights light up 1 at a time 30 , 40 , 50 , 60 and then the boiler shuts off and the 80 light flashes. This happens in heating and hot water the boiler only stays alight for about a minute. I have felt the pump and it feels as if it is running could it be a problem with a sensor or anyone got any idea,s

 

[baxpoti]

Primary thermistor needs replacing (dry pocket)
Prt No. 5108265.

 

[magpie197]

is that the top 1 above the safety stat

 

[baxpoti]

is that the top 1 above the safety stat

Correct

 

[magpie197]

Thanks for your reply

 

[diverdee]

.this is a over heating issue not thermistor i think. think plate exchanger blocked and boiler getting to hot the thermistor is just doing its job correctly.does it reset after 5 min?

 

[magpie197]

fitted C/H temp sensor today and the boiler is working with no problems