Malfunctions Shown On The Display (For The Technician) - Smeg CW–511 MDA User Manual

6 MALFUNCTIONS SHOWN ON THE DISPLAY (FOR
The warewasher is able to identify a number of malfunctions and show them on the display.
If the problem persists after the warewasher has been switched off and back on, proceed as described
below:
E.1 Boiler temperature probe
malfunction
E.2 Tank temperature probe
malfunction
E.3 Water intake malfunction
E.4 Boiler overheating.
E.5 Tank overheating
E.6
Water not pumped out of tank
CW/CWH – 511 MDA
THE TECHNICIAN)
Boiler temperature probe disconnected or not working
Tank temperature probe disconnected or not working
Water intake not completed in the maximum time allowed
Check dynamic pressure in intake system, clean water
intake filter.
If the problem persists:
‐ tank pressure switch has failed (continuous empty
reading)
‐ leak from pipe connected to air trap
‐ drain siphon blocked ‐ the tank is empty due to siphoning
when the drain pump is not running also verify:
air trap dirty / clogged
Rinse pump fails
Faulty solenoid
Reduce boiler temperature < 80°.
Circuit board relay failed, check circuit board and inspect
boiler heating element for damage
Reduce boiler temperature < 58°.
Circuit board relay failed, check circuit board and inspect
tank heating element for damage
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)
If the problem persists:
‐ with tank empty: tank pressure switch has failed
(continuous full reading)
‐ with tank full: drain pump failure
If the system fails to pump out because the drain pump is
fouled (as a result of incorrect filter positioning), proceed
as follows:
Bale out the warewasher with suitable receptacle and
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