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No. Error: Cause: Remedy:
E 10 Battery is weak
Battery on the control board
is flat.
Call service engineer to replace
battery.
E 11 Excess temperature The actual temperature is
25°C above the nominal
value.
Call service engineer and ask
him/her to check the
temperature control system.
E 13 Sensor for end-of-
stroke for pressing
not identified
Sensor for end-of-stroke for
pressing not adjusted or out
of order.
sensor not adjusted or out of
order.
E 17 Temperature
reference sensor out
of order.
Temperature reference sensor
out of order.
Exchange furnace control.
E 20 Smart Card not
readable.
Smart Card positioned
incorrectly.
Incorrect Smart Card type.
Reader out of order.
E 21 Smart Card not
loaded.
Smart Card without data has
been used.
E 22 Smart Card with
incorrect data.
Wrong Smart Card type.
Smart Card was loaded with
incorrect data.
E 23 Less memory
capacity of the
furnace.
Less memory capacity of the
furnace to save more programs.
Delete needless programs.