Hi folks, would really appreciate some advice if possible. We have a Main combi 30HE which has just been serviced but since then something doesn't seem right? There are no faults showing and pressure is good but when the central heating is on the temperature indicator on the boiler is at max 80 degrees which then falls to minimum/zero when the heating is off, also with this the radiators are extremely hot even when turning the thermostats down.
This is definitely not how the boiler was behaving prior to the service so would just like to know if there might be a problem somewhere? Thank you in advance,
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