I have a Vaillant 400 series boiler running on an open vent system with 8 8 rads running of it.
When it starts it ingnites and burns for about 39sec
Then it goes out and waits for ten minutes with all symbols displayed i.e. burner pump, gas valve, circulating pump etc.
After this period it ignites again and burns for about 1 minute.
Then turns off again as before and remains like this for 20 mins
Next it turns on and burns well until the radiators start closing down when it begins to go into an on and off mode sprinkled with a bit of recycling. It works best it seems with all rads turned on full.
My installer has been back and flushed the system but I am not sure how efficiently and Valliant have changed the HE to no avail.
My problem is that as I have had no experience with such a boiler I am not always sure when it is working properly or not.
It is difficult when the installer says it is Vaillants problem and Vaillant says it is the installer who should sort it out.
Any help would be useful at this stage.
I have also posted this attached to a thread relaling to a similar problem.
When it starts it ingnites and burns for about 39sec
Then it goes out and waits for ten minutes with all symbols displayed i.e. burner pump, gas valve, circulating pump etc.
After this period it ignites again and burns for about 1 minute.
Then turns off again as before and remains like this for 20 mins
Next it turns on and burns well until the radiators start closing down when it begins to go into an on and off mode sprinkled with a bit of recycling. It works best it seems with all rads turned on full.
My installer has been back and flushed the system but I am not sure how efficiently and Valliant have changed the HE to no avail.
My problem is that as I have had no experience with such a boiler I am not always sure when it is working properly or not.
It is difficult when the installer says it is Vaillants problem and Vaillant says it is the installer who should sort it out.
Any help would be useful at this stage.
I have also posted this attached to a thread relaling to a similar problem.
