I have a Vaillant combi feeding radiators with (older) Westherm and (newer) Drayton TRVs.
A problem that has recently made itself apparent (warmer weather, = heating not required in bedrooms), is that I cannot turn off the individual radiators using the TRV's. Flow direction seems correct (ie TRV pipe warms first). Several radiators are affected.
System seems OK otherwise.
Any suggestions welcome.
A problem that has recently made itself apparent (warmer weather, = heating not required in bedrooms), is that I cannot turn off the individual radiators using the TRV's. Flow direction seems correct (ie TRV pipe warms first). Several radiators are affected.
System seems OK otherwise.
Any suggestions welcome.