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stick into position and screw tight using upper and lower screws. Put AMP
casings back on.
b.
When the top-positioned thermostat has been unscrewed, the lower one becomes
visible and can be accessed. In the same way as before, to test the thermostat
push in the reverse (red) push button. If during the water and steam test, this
thermostat cuts out, then this could mean that it is also defective. In the case that
the bottom thermostat needs to be replaced, follow the procedure outlined for the
top thermostat. To unscrew the bottom thermostat use a suitable screwdriver.
Before doing this remove the AMP casings. The bottom thermostat makes
contact with the metal of the lower heat exchanger using a thin probe (fixed by a
screw). After the defective thermostat has been removed, apply thermal
conducting adhesive to the back of the new one, install and screw tightly into
position.
7.
After having reversed (reset) the thermostat buttons and/or replaced the
thermostats, close up the machine ( do not yet screw the upper cover in place)
and test run the machine. When both brewing water and hot water/steam are
delivered from the wand at the right temperature, the repair has been carried out
successfully and the upper cover can now be screwed back into place.
8.
The following photos shows the hand tools and spare parts that are essential for
carrying out this service repair. Together with the routine delivery of thermostat
spare parts for the Espresso machine, for installing two thermostats you will also
need to order a quantity of thermal conductive adhesive. This conductive paste
must be applied to the back surface in contact with the heat exchanger of the new
thermostats to be installed.
Here above, the
thermostat for the bottom
heat exchanger
Here above, the
thermostat for the top
heat exchanger
Summary of Contents for SUPREME DED400XP1
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