Ask an expert

Get free help from our community of tradespeople

Unvented Hot water system leaking

Posted by Chris , on Fri 02 Mar 2018 11:04pm

I have a Santon Premier Unvented hot water system that seems to have a lot of water dripping through the tundish. It’s only came to my attention in the cold weather as the tundish is actually overflowing with water (I assume the discharge/outlet pipe is frozen somewhere down the line and its building up??). I thought it was only after we used the hot water for a shower but the water appears to be discharging quicker when the heating is on for a while too. I suspect the whole system is overheating because the heaters seem to go a lot hotter than usual, but I’m just guessing at this point. What is likely to be causing the problem here?