Sump - Bosch SHP65TL5UC Repair Instructions

4.14

Sump

Filtered water drains into the sump, where it is pumped through
the water switch into the spray arms or drained out. The sump
provides attachment positions for the heat pump, drain pump,
water switch, aqua sensor and backflow valve.
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1. Drain pump
2. Outlet to lower spray arm
3. Outlet to top sprinkler
4. Outlet to upper spray arm
5. Water switch
6. Water switch motor
7. Heat pump
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3
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The inside of the sump has a couple of caps / covers to enhance
water flow.
4.14.1 Suction cap
The suction cap provides proper water flow through the sump
when the heat pump is running, prevents air or dirt from being
drawn into the pump and provides access to the heat pump
impeller. It should not be removed.
4.14.2 Drain pump cover
The drain pump cover directs waste water through the drain
pump. Without it, the drain pump cannot build up any pressure.
Customers may remove the drain pump cover for cleaning, but
must reinstall it. If the cover is not correctly attached, water
cannot be pumped out.
TIP: Snap in the drain pump cover tightly to avoid drain
pump cavitating.
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2
3
1. Aqua sensor
2. Drain pump cover
3. Suction cap
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