Hi there,
Boiler: Vaillant ecoTEC+ 937.
Problem: When someone opens the hot water tap fully fairly quickly an odd vibrating noise can be heard from the boiler for a few seconds. Hot water is delivered properly and at the normal temperature and flow rate.
Settings: DHW set at 50C with the storage tanks on.
History: Never had problems with the actual boiler. Boiler fitted in October 2008.
Experiment: Reset the boiler but to no avail, tried different taps and the problem is present with all hot water taps.
Research: Boiler noise seems to be attributed to kettling, fan noise and thermal expansion....god knows what else.
Current situation: We will call Vaillant as the boiler is under guarantee but I am just curious to find out what you think is causing the noise.
Can anyone tell me what is causing the noise?
Boiler: Vaillant ecoTEC+ 937.
Problem: When someone opens the hot water tap fully fairly quickly an odd vibrating noise can be heard from the boiler for a few seconds. Hot water is delivered properly and at the normal temperature and flow rate.
Settings: DHW set at 50C with the storage tanks on.
History: Never had problems with the actual boiler. Boiler fitted in October 2008.
Experiment: Reset the boiler but to no avail, tried different taps and the problem is present with all hot water taps.
Research: Boiler noise seems to be attributed to kettling, fan noise and thermal expansion....god knows what else.
Current situation: We will call Vaillant as the boiler is under guarantee but I am just curious to find out what you think is causing the noise.
Can anyone tell me what is causing the noise?