3.12 F 1 NTC shor t circuit water / heater
Symptom
The fault is not indicated in the operating mode.
The heater is switched off within 10 s.
The program is carried out without heating.
Hot water: The program is continued with cold water.
Cause
Temperature sensor (NTC resistor R30) or connector shor t circuited.
Check the temperature sensor (NTC resistor R30)
A Check the temperature sensor (NTC resistor R30) in the service mode, refer
to Service mode – Overview, 070 4.5, Service Mode Overview, 070 4.6.
A Check the temperature sensor (NTC) circuit for short circuit, open circuit and
isolation.
A Check the electronic resistance of temperature sensor (NTC resistor R30),
refer to 030 Table 2.
3.13 F 2 NTC open circuit water / heater
Symptom
The fault is not indicated in the operating mode.
The heater is switched off within 10 s.
The program is carried out without heating.
Hot water: The program is continued with cold water.
Cause
Open circuit in temperature sensor (NTC resistor R30) or line.
Check the temperature sensor (NTC resistor R30)
A Check the temperature sensor (NTC resistor R30) in the service mode, refer
to Service mode – Overview, 070 4.5, Service Mode Overview, 070 4.6.
A Check the temperature sensor (NTC) circuit for short circuit, open circuit and
isolation.
A Check the electronic resistance of temperature sensor (NTC resistor R30),
refer to 030 Table 2.
Descriptive Technical Documentation
DTD no. 11-4800 070-17
22.12.2006, US_am This information should not be duplicated or passed on without Miele approval. All rights reserved.
