ravenheat CSI 120 Low Nox Combi boiler

All modern boilers use the NTC sensors to identify a frost risk.

With the boiler totally cold remove the sensor plugs and measure their resistance!

Tony

By definition an ntc could be classed as a safety device, so how come you are advising the op to replace them himself :?
 
Argile says :Our installation charge of about £840 covers any warrantee attention.

Does that include a power flush?
 
So that I can quote installation costs over the phone without visiting I have to ask questions which give me an idea of what water treatment may be required.

That charge will cover water treatment as required but if I identify that a power flush will definately be required then I might add a little more. But providing my questions have been answered correctly and there is no serious evidence of a blocked system then it covers power flushing. The effective extra time this takes is averaged over several installations.

I usually make a visit when the budgetary quote has been accepted to confirm the price and look at the water from a bleed screw etc.

Tony
 

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