Display The Error Code Of A Serious Error; Poor Wash Result - Miele PTD 901 Notice D'utilisation

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English 7 Notifications
7.2

Display the error code of a serious error

If a serious error is present, washing is no longer possible and a red bar appears at the top of the display:
Accessing the error code
7.3

Poor wash result

Wash items not clean
Spots visible on the wash items
The wash items do not dry on their own
Note: Water quality affects washing and drying result. We therefore recommend that the warewasher be supplied with softened water from a
total hardness of more than 3 dH (0.53 mmol/l).
90
85°C
65°C
Possible cause
No or low detergent dosing
Wash items incorrectly sorted
Wash field jets clogged
Temperatures too low
Tank water too heavily soiled
If scaling is present:
The water is too hard
For starch residues:
Temperature of manual pre-cleaning ex-
ceeds 40 °C
No or low rinse aid dosing
Rinse water temperature too low
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12020320/01; 2022-01
Remedy
Set the dosing amount as per the manufac-
turer's specifications. (} 66)
Check the dosing hose (for kinks, breakage,
etc.).
Venting the dosing device. (} 95)
Replace the canister, if empty.
Sort wash items correctly. (} 82)
Dismantle wash field and clean jets. (} 93)
Contact an authorised service technician.
Start tank water exchange programme.
(} 88)
Check the external water treatment.
Connect water treatment.
Carry out basic cleaning.
Lower the temperature of manual pre-clean-
ing.
Set the dosing amount as per the manufac-
turer's specifications. (} 66)
Check the dosing hose (for kinks, breakage,
etc.).
Vent the dosing device.
Replace the canister, if empty.
Contact an authorised service technician.
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Operating instructions PTD 901