Recent content by dafengche

Thanks. It seems I have problem removing the controller which covers the valve. I will have a try again in the next couple of days. Otherwise I may have to ask for a plumber.

Thanks. Now I need to think about how to access the top of the valve. It seems that I have to remove the controller first. What is the allen key? Where to get it?

Hi, I opened the cover under the controller and found a cylinder with several pipes. Unfortunately the valve (possibly) for DHW is very close to the controller and can not be viewed fully. I noticed that when hot water (which is NOT hot) is on, one pipe (from the cylinder) to the valve was hot...

Thanks. I will have a look soon.

Thanks for your reply. What I guess is that there is a temperature sensor for domestic hot water and was set to 65 degrees. If so, maybe there is chance to adjust the setting or replace it. Is this correct? It seems I could not find a powermax 135 manual. Anybody has it?

Hi, I've got a Powermax 135. Recently the hot water becomes not hot any more - about 30 - 40 degrees. I read the user guide and found the domestic hot water should be 65 degrees. Could anybody please point out what's the problem and how may I fix it? - Thank you, dafengche PS. The central...