Solar I boost thermostat

Swizz

We have ecodan heat pump with solar I boost diverting excess energy to heat the water. However, it is heating the water too hot..and I understand there is an independent thermostat on the immersion heater..but no idea where it is and how to adjust...

Reed_Richards

• Cut the power to your immersion heater.
• Take off the cover (typically round held on by a single nut).  It will be on the side of your cylinder with wires going to it.
• Turn the little dial to a lower temperature.
• Replace the cover.
• Restore the power.

Reed_Richards

Alternatively, get a plumber to fit a blending valve to the output from your cylinder so it doesn't matter how hot it gets.  That's what I have.