Instantaneous Water Heater - Bosch SRU53E05AU Repair Instructions

4.16

Instantaneous water heater

The instantaneous water heater is installed in the water circuit for the
spray arms. When the detergent solution flows through the instan-
taneous water heater, a rubber membrane (B) attached to the flange
actuates the safety pressure switch (D) for the heating element (C). If
the pressure drops, the heater switches off. The heating position is
overtravelled, preventing dry heating.
A "Clicking" safety device / NTC; 85 °C safety switch
B Membrane
C Heating element
D Safety pressure switch
815_58300000120057_ara_en_d.doc – 25.05.11
E From the circulation pump
F To the lower spray arm
G To the upper spray arm
Technical specifications:
Designation
Nominal voltage
Frequency
Power
Resistor
Value Unit
230–240 V
50 Hz
2150 W
Ω
approx. 22
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