User`s manual

5
ounces of cleaner through the hot water spout (repeating the process back at step 17).
Excessive scale in the drained water indicates that you need to descale more often. If the
water does not look very polluted with hard water deposits that have been dissolved,
continue with step 22.
22. Empty and thoroughly wash and rinse the water reservoir, fill it with the water you
normally use in the machine, and replace the hose with the particle filter on the end back
into the reservoir. (Do not replace the water softener yet.)
23. Place the bypass hose in a suitable container. Removing this hose from the reservoir will
keep the water in the reservoir free from the descaler which is still in the pressure-relief
system.
24. Temporarily reconnect the autofill level sensor wire. Place a container under the
grouphead, plug in the machine, turn the power switch to position I and turn on the brew
cycle for 15 seconds or more to flush out the grouphead and thermosyphon pipes. Turn
off the brew cycle and turn the power switch to position 0.
25. Lock the portafilter with the blind filter basket in place on the grouphead. Turn the power
switch to position I and run the brew cycle for 10 seconds after the brew pressure gauge
reaches about 9 BAR to flush the over-pressure relief valve. Turn off the brew cycle and
turn the power switch to 0.
26. Remove, rinse, and replace the blind portafilter. Turn the power switch to position I and
turn the brew cycle on and off a few times as when you are backflushing to clear the rest
of the grouphead. Turn the power switch to position 0, then turn the brew cycle off.
27. Disconnect again the autofill level sensor wire, place a suitable container under the steam
wand and open the steam valve. Turn the power switch to position I. The autofill is
defeated and so the machine will pump a stream of water through the steam wand.
Continue pumping until the water is clean and is free of descaling agent. Set the power
switch to position 0, and then close the valve. Remember to check the reservoir level
during this process.
28. Once again, place a suitable vessel under the hot water tap, open the hot water tap and
turn the power switch to position I. Allow water to flow from the spout until it is clean
and free of descaling agent. Set the power switch to position 0, and then close the valve.
29. Repeat steps 21 through 27 until the water you drain is tasteless (totally free from the
taste of the cleaner). This might take as many as three or more rinses.
WARNING: Most proper descalers are a form of food-grade citric acid and are safe to
consume when highly diluted. Sample only a very small amount (one drop on a clean
fingertip) to be safe. Thoroughly wash your hands in hot, soapy water before and after
performing this test.