Another problem I have had on the grant combi 90 is this....
When the hot water is on and left on for a while (running a bath, etc) the heating comes on even if it is switched off. And when the heating forst comes on in the morning, the DHW is luke warm at best.
What would cause this, faulty diverter? This is an intermittent problem, but I would imagine that it will be a pain in the ar5e in the summer as it'll end up heating the house everytime I need hot water!
Cheers once again.
Lee.
When the hot water is on and left on for a while (running a bath, etc) the heating comes on even if it is switched off. And when the heating forst comes on in the morning, the DHW is luke warm at best.
What would cause this, faulty diverter? This is an intermittent problem, but I would imagine that it will be a pain in the ar5e in the summer as it'll end up heating the house everytime I need hot water!
Cheers once again.
Lee.