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I have a Bosch Worcester 24Si II boiler (see control panel below), but there is no hot water and the boiler isn't turning on. It's housed in an external housing.
I've followed the instructions in the user manual: Initially the fault light was flashing slowly and after resetting it (holding the button down for five seconds) the fault light went out. However, there was still no hot water and the fault light came back on after running the tap. After a few resets, the fault light started flashing quickly.
I turned the power switch off and on and the fault light went out. When I turned on the hot tap the boiler made some sounds as though it was starting, but it didn't, and the fault light (fast flashing) came on again.
The flame detection indicator is off and has not come on at any point. There are no blockages in the flue (that I can see) and it appears that there are electricity and gas supplies to the unit. The gas black needle is on about 0.7.
The fault occurred today (which was quite hot) if that's relevant. The boiler was last tested about 18 months ago and hasn't had any faults before.
Any ideas what is wrong with it? Are there any other tests or fixes I can do before having to call an engineer?
I've followed the instructions in the user manual: Initially the fault light was flashing slowly and after resetting it (holding the button down for five seconds) the fault light went out. However, there was still no hot water and the fault light came back on after running the tap. After a few resets, the fault light started flashing quickly.
I turned the power switch off and on and the fault light went out. When I turned on the hot tap the boiler made some sounds as though it was starting, but it didn't, and the fault light (fast flashing) came on again.
The flame detection indicator is off and has not come on at any point. There are no blockages in the flue (that I can see) and it appears that there are electricity and gas supplies to the unit. The gas black needle is on about 0.7.
The fault occurred today (which was quite hot) if that's relevant. The boiler was last tested about 18 months ago and hasn't had any faults before.
Any ideas what is wrong with it? Are there any other tests or fixes I can do before having to call an engineer?