Impressed initially

My husband and I are English and are big tea drinkers.  We have used electric kettles for years for their ease of use and how quick they boil water.
    I was initially impressed with the Chefs Choice and how quickly it boiled the water.  However after two days we kept wondering why our tea tasted different and not very good.  We then realised that the plastic inside the lid was emitting this really horrible plastic smell when the water was boiled and thus must be making the water taste bad.