hi, my boiler randomly after few hours shuts down like when you turn the power off, nothing on display. than if i reset it, display comes back on and boiler starts working again. no fault code is shown or even red light is on.
It started happening after i fitted new room thermostat siemens raa20. this stat only need 2 wires L and Y1. and i connected L to = in my boiler and Y1 to TA. and removed the link between =&TA
but when this boiler started playing up i disconnected the stat and put the link back on between ==&TA like it was before.
now it turns off after few hours where before it was 20 minutes. i m not sure what the problem is.
here is the diagram for the wiring
It started happening after i fitted new room thermostat siemens raa20. this stat only need 2 wires L and Y1. and i connected L to = in my boiler and Y1 to TA. and removed the link between =&TA
but when this boiler started playing up i disconnected the stat and put the link back on between ==&TA like it was before.
now it turns off after few hours where before it was 20 minutes. i m not sure what the problem is.
