Siemens TQ505DF Series - Page 64

en Troubleshooting
64
Fault Cause and troubleshooting
Display shows "Please
clean brewing unit, re-
place and close
door.".
Brewing unit is soiled.
▶ Clean the brewing unit.
Mechanism of brewing unit is stiff.
▶ Clean the brewing unit.
Too much ground coffee in the brewing unit.
▶ Use no more than 2 level measuring spoons of
ground coffee.
Display shows
"Voltage (V) incor-
rect.".
There are problems with the power supply.
▶ Only operate the appliance at 220-240V.
Display shows "Please
restart appliance.".
Brewing unit is heavily soiled or cannot be removed.
▶ Restart the appliance.
▶ Clean the brewing unit.
Appliance has a fault.
1. Pull out the mains plug and wait 60seconds.
2. Re-insert the mains plug.
Display very frequently
shows "calc'nClean".
Decalcified water still contains small amounts of lime.
1. Insert a new water filter.
→"Inserting and activating the water filter", Page48
2. Set the corresponding water hardness.
→"Setting the water hardness", Page47
Incorrect or too little descaling agent used.
▶ When descaling, only use suitable tablets.
Service programme has not been carried out in its en-
tirety.
▶ Reset the service programme.
→"Resetting service programmes", Page59
Coffee or milk froth
quality varies widely.
Build-up of limescale in the appliance.
▶ Descale the appliance.
Milk froth quality var-
ies widely.
Milk froth quality depends on the type of milk or plant-
based alternative used.
▶ Optimise the result through the selection of the milk
or vegetable-based drink type.
Coffee is not dis-
pensed or has slowed
to a trickle.
Set quantity is not
reached.
Grinding level is set too fine.
▶ Set a coarser grinding level.
→"Adjusting the grinding level", Page54
Heavy build-up of limescale in the appliance.
▶ Descale the appliance.
Air is in the water filter.