I HAVE A PROBLEM WITH OLD CENTRAL HEATING SYSTEM WHERE I GET HOT RADS BUT NO HOT WATER WHEN HONEYWELL PROGRAMMER IS SET ON CENTRAL HEATING AND HOT WATER AND HOT WATER.
WE USED TO HAVE BOTH HOT WATER AND RADS.
IF I PUT JUST HOT WATER ON THEN OCCASSIONALLY GET HOT WATER BUT NOT OFTEN.
IT USED...