Powermax 155

Steve Brooks · 28 Sep 2007

I have a Powermax 155 that appears to lose pressure when we put on the heating or run a bath. If we leave it on just hot water its fine. Any ideas?

gas4you · 28 Sep 2007

Call in heat team as these are a specialist and potentially dangerous boiler.

Agile · 28 Sep 2007

It might only be a discharged expansion vessel!

Tony

Steve Brooks · 28 Sep 2007

Tony

How do i resolve that???

gas4you · 28 Sep 2007

Some are open vented. All the ones I used to fit were.

I won't go near them for love nor money now

Steve Brooks · 28 Sep 2007

This one is definitely sealed and has a round expansion tank above the boiler.

Agile · 28 Sep 2007

Depress the schraeder valve and as long as water does not come out then repressurise with a car foot pump to about 0.9 Bar ( for a WP of 1.5 bar.

See the FAQ for more details.

Tony

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Powermax 155

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