Bosch SHU3307 - Heater - Water Switch (“Flow Control”)

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VIII.
VIII.
Troubleshooting
Troubleshooting
Heater
Heater
–
–
Water Switch (“Flow Control”) (1)
Water Switch (“Flow Control”) (1)
All Apexx (SH_99) and ExactWash (SHX/Y56 & SHV/Y66)
model heater assemblies have motor operated water switches
inside them, with motors attached where Top Rack Only
housings have been traditionally mounted (underneath heater
assemblies). They consist of a motor-controlled disk (with 3
holes) which rotates to provide precise water flow control --
using both spray arms, upper spray arm only or lower spray
arm only.
Water
switch
motor
Heater
assy.
Water
switch disk
HINT: Models with water switches require
stronger circulation pumps (# 239129) with
separate motor starters (# 182318).
Circulation pumps, heaters & sumps for
water switch and non-water switch models
cannot
be interchanged.
Water switch disk
HINT: Models with water switches and
Top Rack Only have the Top Rack Only
parts integrated with the water switches.
No separate actuators are needed.