Found the other day that I was getting HW but no CH.
I was able to get things working by moving the lever on my Honeywell 2-way valve into manual override mode.
Just checking that it is OK to leave it like this for a couple of weeks. I will be limited to HW+CH mode only. But that is no hardship as I can use the immersion heater for HW only.
I was able to get things working by moving the lever on my Honeywell 2-way valve into manual override mode.
Just checking that it is OK to leave it like this for a couple of weeks. I will be limited to HW+CH mode only. But that is no hardship as I can use the immersion heater for HW only.