Recent content by Pongolek

I think replacing drain valve #12 is a good idea for the future. Maybe TPRV #5 got dirty due to long-term water leakage (replaced half a year ago)? The temperature on the heater regulators is set to 60 °C. Water is definitely leaking from TPRV #5. I guess I'll end up calling a qualified person...

Thanks everyone for your help. Item 4 is 8 bar.

Water is leaking through the tundish from the Temperature & Pressure Relief Valve on the unvented cylinder OSO Indirect 20 RI. Half a year ago it was the same and I replaced the TPR15 valve. I installed the CPT15 equivalent. Water is leaking again. No more drops but a small stream. The unvented...

I replaced the pump. It works fine.

Thanks. I think the same. I was hoping that maybe some temperature sensor was damaged but I read that there is no sensor there.

When I turned on the heating with the temperature controller, the Icos HE12 boiler and the Grundfos UPS 15-60 130 pump would turn on. The radiators would heat up. Unfortunately, the pump would turn off after about 25 minutes. The boiler would start bubbling and knocking without temperature...