In article ,
Harry Bloomfield writes:
After serious thinking T i m wrote :
Like, Our fridge
and freezer are quite old and therefore probably wouldn't have the
energy saving bits in them.

True, but if they are that old then they were probably designed to work
on 230 -250v. Reduce the voltage to 220v and your risk them not being
able to start at all and burning out the motors.

In general yes. However, domestic fridge and freezer motors are
actually both designed and expected to fail to start on occations,
and include the necessary protection and retry circuitry (even very
old ones).

The washing machine, and dishwasher have
induction motor pumps that may be drawing more current than they need

Motors draw the current they need to do the work. Reduce the voltage
and they draw more current to make up for the decreased voltage.

and become less efficient with more slip.

--
Andrew Gabriel
[email address is not usable -- followup in the newsgroup]