Hi I've got a vokera linea 24 boiler. When we turn on the hot water tap, or the heating is on the boiler is only alight for about 5 seconds, then it goes out again for another 5 seconds. It then lights for 5 seconds etc. It does this the entire time hot water is needed. There are no error codes shown during this time.
Fairly often when we first turn on the water in the morning we get an error 03 or 04. These reset themselves and then operations continue as above. Occasionally we'll get an error 01 and have to reset the boiler manually. We've had someone in to replace the heat exchanger, and then the PCB as they thought it might be that, but it's made no difference I hope you can give me some ideas as to what might be wrong?
Fairly often when we first turn on the water in the morning we get an error 03 or 04. These reset themselves and then operations continue as above. Occasionally we'll get an error 01 and have to reset the boiler manually. We've had someone in to replace the heat exchanger, and then the PCB as they thought it might be that, but it's made no difference I hope you can give me some ideas as to what might be wrong?