23
Safety functions and error display.
ERROR CODE
ERROR DESCRIPTION
INSTRUCTION MANUAL
ER03 & permanent tone
Permanent use of keys; Control unit cuts
off after 10 sec; Water or cooking
utensils on the glass above the control
unit.
If the problem persists, CONTACT
AUTHORIZED CENTER FOR
TECHNICAL ASSISTANCE -
SPECIFYING THE ERROR CODE
ER21
Control unit cuts off due to overheating to
avoid damage to electronics.
CONTACT AUTHORIZED CENTER
FOR TECHNICAL ASSISTANCE -
SPECIFYING THE ERROR CODE
U400
Secondary voltage of the power unit to
high (primary > 300V). Control unit cuts
off after 1 sec releasing a permanent
tone.Control unit is wrongly connected.
1) CONTACT AUTHORIZED
CENTER FOR TECHNICAL
ASSISTANCE - SPECIFYING THE
ERROR CODE
2) Contact an electrician to check the
home supply mains.
ER22
Key evaluation defective. Control unit
cuts off after 3.5 - 7.5 sec.Short-circuit or
discontinuation in the range of the key
evaluation.
CONTACT AUTHORIZED CENTER
FOR TECHNICAL ASSISTANCE -
SPECIFYING THE ERROR CODE
ER36
NTC value is not within its specification
(value < 200mV or > 4.9V; control unit
cuts off.Short-circuit or cut-off at NTC.
CONTACT AUTHORIZED CENTER
FOR TECHNICAL ASSISTANCE -
SPECIFYING THE ERROR CODE
ER20
Flash-failure. Microcontroller faulty. CONTACT
AUTHORIZED
CENTER
FOR TECHNICAL ASSISTANCE -
SPECIFYING THE ERROR CODE
ER40
Secondary operational voltage is to low
for min.5 s (1,8V< UPowerfail< 2,9V).
Primary PTC too hot.
CONTACT AUTHORIZED CENTER
FOR TECHNICAL ASSISTANCE -
SPECIFYING THE ERROR CODE
