Firebird Combi C26 Hot Water Problem

8 Jan 2016
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United Kingdom
I have read a post from around 2 years ago and we have exactly the same problem. The resolution to the problem was not included in the post. Can anybody help lease?

When we turn on the hot water tap, about 10 seconds later, we get hot water - which is great!. However, if the tap is kept running for a further 10-15 seconds, then the water actually turns cold and takes about 5 or 6 minutes to come back to temperature.

Also, this only happens after the boiler is left for more than 1/2 hour or so.

We have replaced the flow switch thermistor and the burner photocell but they havn't resolved the problem. Rather than continuing to pay for parts to be replaced without the problem being solved, I was wondering if anyone could suggest what the problem/solution might be.

Thanks in advance.

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