As subject.
When having a shower or running a bath the water temp cycles from hot to tepid and back to hot. Cycle is usually about 45secs.
It did this about 18 months ago and the heat exchanger was swapped - that improved it 90%, but didn't fully cure it.
The pressure in the loop is fine and I've tried setting different output water temp settings.
It's a Worcester Greenstar 30si.
My guess is that the direct hot water temperature sensor or the direct hot water flow sensor is not working properly and thus preventing the control loop from working properly?
I'm assuming teh heat exchanger is OK given it was replaced pretty recently.
Any other suggestions?
When having a shower or running a bath the water temp cycles from hot to tepid and back to hot. Cycle is usually about 45secs.
It did this about 18 months ago and the heat exchanger was swapped - that improved it 90%, but didn't fully cure it.
The pressure in the loop is fine and I've tried setting different output water temp settings.
It's a Worcester Greenstar 30si.
My guess is that the direct hot water temperature sensor or the direct hot water flow sensor is not working properly and thus preventing the control loop from working properly?
I'm assuming teh heat exchanger is OK given it was replaced pretty recently.
Any other suggestions?