Hello
I am wondering if anybody has come across the following situation that is occurring with my boiler and can give me a heads up on the situation, so that I can have a clearer understanding to resolve the issue somehow with my installer.
Two years a go I had my old Servowarm Boiler replaced with a Worcester Bosch Greenstar 24i System Boiler, Drayton RTS Thermostat, Drayton LP522 Program Controller, Drayton MA1 three port valve and Bulldog TRV’s on the necessary radiators which were also flushed out.
The system normally works fine with CH and HW coming on both together in the morning and evening with the HW turning off before the CH.
The problem occurs if we say make a demand on the system outside of the program times i.e. override the programmer / advance. The system appears to stay turned on making a demand to the boiler even when both of the LED’s on the programmer show that that the boiler should be off.
Originally my installer wondered if the three port valve had been sticking open and so came back and replaced the actuator head on the three-port valve and also the Drayton LP522 programmer for good measure but this did not resolve the issue.
I appear to have isolated the issue to the HW side of things, it appears that when we advance on the HW this causes the fault to occur (or if HW comes on and the CH has been advanced to turn the heating on now it’s colder). The problem is resolved by simply turning the HW off and this sorts out the problem on the boiler turning the system off.
I spoke to Worcester Bosch who said they did not feel it was an issue with the boiler but a voltage might be running back from the controller valve to the boiler which required tracing. I know at the time that when my installer came round to replace the three port valve there was mention of a “rouge 210V feed going” around which might be causing the fault (I am recalling the last bit about the 210v from memory so that might not be the correct voltage).
I’m just wondering what anyone’s opinion is and whether there is an issue with the wiring to the controller / electrics in general.
I am wondering if anybody has come across the following situation that is occurring with my boiler and can give me a heads up on the situation, so that I can have a clearer understanding to resolve the issue somehow with my installer.
Two years a go I had my old Servowarm Boiler replaced with a Worcester Bosch Greenstar 24i System Boiler, Drayton RTS Thermostat, Drayton LP522 Program Controller, Drayton MA1 three port valve and Bulldog TRV’s on the necessary radiators which were also flushed out.
The system normally works fine with CH and HW coming on both together in the morning and evening with the HW turning off before the CH.
The problem occurs if we say make a demand on the system outside of the program times i.e. override the programmer / advance. The system appears to stay turned on making a demand to the boiler even when both of the LED’s on the programmer show that that the boiler should be off.
Originally my installer wondered if the three port valve had been sticking open and so came back and replaced the actuator head on the three-port valve and also the Drayton LP522 programmer for good measure but this did not resolve the issue.
I appear to have isolated the issue to the HW side of things, it appears that when we advance on the HW this causes the fault to occur (or if HW comes on and the CH has been advanced to turn the heating on now it’s colder). The problem is resolved by simply turning the HW off and this sorts out the problem on the boiler turning the system off.
I spoke to Worcester Bosch who said they did not feel it was an issue with the boiler but a voltage might be running back from the controller valve to the boiler which required tracing. I know at the time that when my installer came round to replace the three port valve there was mention of a “rouge 210V feed going” around which might be causing the fault (I am recalling the last bit about the 210v from memory so that might not be the correct voltage).
I’m just wondering what anyone’s opinion is and whether there is an issue with the wiring to the controller / electrics in general.