Hello guys.
Please can you help as at wits end. I've changed out 4 radiators over the last 12 months in my house and the last one being yesterday. I now have a F75 code and a S98 information code on my vaillaint Pro eco tec 28 combi boiler.
I had a GSR installer friend come over and he bled the pump and auto air vent which worked for about half and hour. When the missus went to put heating on via remote control thermostat it went back to F75 mode again!
I've bled all radiators starting bottom to top and there is an cold standing pressure of 1.1bar
Is there anything simple that could be done to alleviate this problem as have no hot water or heating. All other rads were no problem just this one.
Thanks all very much
Martyn
Please can you help as at wits end. I've changed out 4 radiators over the last 12 months in my house and the last one being yesterday. I now have a F75 code and a S98 information code on my vaillaint Pro eco tec 28 combi boiler.
I had a GSR installer friend come over and he bled the pump and auto air vent which worked for about half and hour. When the missus went to put heating on via remote control thermostat it went back to F75 mode again!
I've bled all radiators starting bottom to top and there is an cold standing pressure of 1.1bar
Is there anything simple that could be done to alleviate this problem as have no hot water or heating. All other rads were no problem just this one.
Thanks all very much
Martyn