Recent content by jjasper

Hi Guys! Since setting D0 to 21 there has been no reoccurrence of fault code S53 whether the pump is switched to setting 2 or setting 3. Thanks to you the house is roasty toasty warm.

Thanks Icgs. Using your formula D0 should be set at 22, so at the risk of upsetting Tony, I'll leave it at 21. I prefer to keep the house cool and wear a wooly. I'd have thought that setting it at 10 would have me wearing thermals as well.

I don't follow. Kevindgas advised me to set D0 to 21 and you advised 10. I said I would try it at 21 and then work down to your figure of 10 and see what worked best. I don't see how this is not following your advice. When I started D0 was set at 30. It therefore seemed sensible to change to 21...

Thanks! At the moment D0 is set to 30. I'll try it at 21 and work down to 10 and see what works best. The reason I only use 8 radiators is that we prefer the bedrooms to be on the cool side. The upstairs landing radiator and heat from downstairs keeps the upstairs at a comfortable temperature...

Thank for the replies! There are 13 radiators in the house but only 8 are used. The pump is a 15-50. As I wasn't using all the radiators I had switched from setting 3 on the pump to setting 2. I hadn't realised that this has probably caused the problem. I thought these boilers modulated their...

Hi! My ecoTEC plus 428 boiler fires up and runs for a short period but the radiators don't get very hot. Pressing the "i" key displays diagnostic code S.53 - Appliance is within the waiting period of the operation block due to water shortage (VL-RL spread is too big). I have checked the header...