Hi,
First time poster and not very technical, so please excuse my clumsy description of the issue...
I seem to be having exactly the same issue as another poster from back in Nov 2010 (//www.diynot.com/forums/viewtopic.php?t=250697) - that was unresolved then, and I'm not sure what to do. I've searched the forums / online and can find plenty of people with a similar issue, but no resolution.
Background:
1900 Victoria detached house, old combi replaced and resited. Multiple new radiators and pipework replacing most (but not all) the old pipework.
Without the VRC430 installed, the boiler works perfectly (although obviously no room thermostat or clock control). Fires up, all radiators get warm, boiler keeps firing till internal temp hits that set on control panel... lovely!
We then bought a VRC430 and fitted myself. No problem - 430 panel is approx 3 feet from boiler, good signal during install from both external sensor (on North facing wall) and internal panel.
Hot water still works perfectly. Issue is with panel calling for heat - boiler goes through expected status stages (S1, S3, S4, S5)... the internal temperature starts rising (27c,28c,29c...) then suddenly it stops heating and goes into Central heating / pump overrun (S6/S7 - apologies, posting from work so not sure of exact code!).
Removing the wireless receiver module of the VRC430 from the boiler 'fixes' the boiler, from the point of view that I can then at least heat the house (albeit without any control over time or room temp, of course).
I rang Vaillant - they want me to ring back tomorrow when in front of the boiler. Not that helpful if I'm honest... had I paired the transmitter, was the room temp below the thermostat temp etc... seemed to suggest that there was some internal setting in the boiler that may need to be adjusted, but this doesn't seem to make much sense to me.
Also - tried both thermostat and modulator settings in the VRC430 control panel. Made no difference.
Any thoughts / suggestions? Would gladly pay a Vaillant engineer to come out and install - the heating install was done by an elderly gassafe friend of the family - his plumbing / central heating knowledge seems perfect, but he has no idea about new programming systems. Am between Reading and Oxford, if anyone knows someone and it's not something I can fix myself!
First time poster and not very technical, so please excuse my clumsy description of the issue...
I seem to be having exactly the same issue as another poster from back in Nov 2010 (//www.diynot.com/forums/viewtopic.php?t=250697) - that was unresolved then, and I'm not sure what to do. I've searched the forums / online and can find plenty of people with a similar issue, but no resolution.
Background:
1900 Victoria detached house, old combi replaced and resited. Multiple new radiators and pipework replacing most (but not all) the old pipework.
Without the VRC430 installed, the boiler works perfectly (although obviously no room thermostat or clock control). Fires up, all radiators get warm, boiler keeps firing till internal temp hits that set on control panel... lovely!
We then bought a VRC430 and fitted myself. No problem - 430 panel is approx 3 feet from boiler, good signal during install from both external sensor (on North facing wall) and internal panel.
Hot water still works perfectly. Issue is with panel calling for heat - boiler goes through expected status stages (S1, S3, S4, S5)... the internal temperature starts rising (27c,28c,29c...) then suddenly it stops heating and goes into Central heating / pump overrun (S6/S7 - apologies, posting from work so not sure of exact code!).
Removing the wireless receiver module of the VRC430 from the boiler 'fixes' the boiler, from the point of view that I can then at least heat the house (albeit without any control over time or room temp, of course).
I rang Vaillant - they want me to ring back tomorrow when in front of the boiler. Not that helpful if I'm honest... had I paired the transmitter, was the room temp below the thermostat temp etc... seemed to suggest that there was some internal setting in the boiler that may need to be adjusted, but this doesn't seem to make much sense to me.
Also - tried both thermostat and modulator settings in the VRC430 control panel. Made no difference.
Any thoughts / suggestions? Would gladly pay a Vaillant engineer to come out and install - the heating install was done by an elderly gassafe friend of the family - his plumbing / central heating knowledge seems perfect, but he has no idea about new programming systems. Am between Reading and Oxford, if anyone knows someone and it's not something I can fix myself!