Question about Braun Aromaster KF 400 Coffee Maker
There are 4 electrical parts
2 thermal switch (keeps heater at around boiling temperature)
3 thermal fuse (will break if thermal switch gets stuck on, to prevent fire)
4 heating element (the hotplate and surrounding tube that boils water)
since the switch lights and hot plate is not hot then it is #2,3 or 4 that is not working.
it is most likeley the thermal switch which is not too expensive to replace.
check the thermal switch by disconnecting it from the wires. at room temperature the thermal switch should be closed. test with a meter set on resistance.
if it is not that check the thermal fuse in the same way, it should also be closed.
if those test ok and the heating element is bad (doubtful) then get another machine and save this for parts
Posted on Jan 04, 2010
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