Combi, mains gas, 9 years old
1.hot water upstairs runs warmish then back to cold then warm again. Makes no difference if flow is slowed by shutting tap. Water flow same as before this started. Water has been hot during the 'summer' and this seemed to start when selecting heating and hot water. There is no change if heating is deselected. Rads temperature o.k.
2.Boiler operates, fan and pump running but no flame, will do this for hours. Power off and on and it fires up. Is there not a safety system that if no flame detected then boiler turns off? Why doesn't it fire up first time round?
Thanks
1.hot water upstairs runs warmish then back to cold then warm again. Makes no difference if flow is slowed by shutting tap. Water flow same as before this started. Water has been hot during the 'summer' and this seemed to start when selecting heating and hot water. There is no change if heating is deselected. Rads temperature o.k.
2.Boiler operates, fan and pump running but no flame, will do this for hours. Power off and on and it fires up. Is there not a safety system that if no flame detected then boiler turns off? Why doesn't it fire up first time round?
Thanks