Hi All. Just thought I would put a post here before I seek help from Viessmann. I've had a new Vitoden 100 boiler fitted about 18 months ago. New pipes, new radiators, new everything. Its worked absolutely fine until last week when I noticed that the hot water output is abit cooler than normal. More noticeable when running a bath. There is no fault code and no other symptom to really report. The central heating appears to be ok and obviously I'm watching this like a hawk especially at this time of year.
When running a bath, the boiler reading might say 60-65 deg C but with my hand under the tap I really do doubt that. What could the problem be?
TIA - Andy
When running a bath, the boiler reading might say 60-65 deg C but with my hand under the tap I really do doubt that. What could the problem be?
TIA - Andy