Starting The Peristaltic Pumps - Rapid Filling Of Detergent And Rinse Aid Delivery; Malfunctions Shown On The Display (For The Technician) - Smeg CWG420D Manual

6.14 Starting the peristaltic pumps – rapid filling of detergent and rinse aid
delivery circuit.
Perform after the parameter modification procedure explained in the previous point.
Indicator lights showing: off; green; orange;
With the dishwasher powered up, access "programming
mode" by pressing the on/off button for a few seconds; at
the "beep", release the button and press it again quickly
within 0.5 seconds.
The peristaltic pump operates until the same button is
pressed again; the detergent or rinse aid symbol is lit up as
long as the pump is in operation; about 2 minutes is
sufficient.
The dishwasher is able to identify a number of malfunctions and show them on the display.
If the problem persists after the dishwasher has been switched off and back on, proceed as described
below:
Err04 Tank temperature probe malfunction
Err05 Tank water filling malfunction
Water pump‐out malfunction
Err06
(if featured)
7 MALFUNCTIONS SHOWN ON THE DISPLAY (FOR
THE TECHNICIAN)
‐ CW 420/430
flashing.
Tank temperature probe disconnected or not
working.
The tank does not fill within the allowed time: check
water intake tap, dynamic pressure in intake system,
cleaning of water intake filter, possible damage to
water intake hose or cleaning of rinsing nozzles.
If the problem persists during FILL:
‐ tank pressure switch has failed (continuous empty
reading: check whether tank safety pressure switch
is tripped)
‐ leak from pipe connected to air trap
If the problem occurs during work cycle
‐ filler hose bleeder valve fouled: tank empties
completely at end of a wash cycle due to siphon
effect.
Inspect the filters for dirt and check that the drain
hose is not blocked, bent or crushed.
Check that the drain pump is not blocked by dirt by
removing the insert on the sump (from inside the
tank).
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