Dometic 4000 Series Operation Manual page 13

Fault
Flush ball opens
and closes, but
waste does not
leave bowl (no
vacuum)
5.3 Servicing the toilet base components
Aligning Cam Switch/Flush Ball
10
The flush ball should be properly positioned so that the "A" and "B" distances are equal (see
illustration above) . If the flush ball becomes misaligned (resulting in water leaking from bowl or
other flushing problems), follow instructions below to resolve problem .
11
Over-travel
condition
Slide cam switch
DOWN
Removing the toilet from the floor
➤ Turn off the water and the electrical power to the toilet .
➤ Remove the water inlet hose from the toilet .
➤ Remove the toilet from the floor and turn it upside-down .
I
Make sure the power wires are secure .
13
Possible cause
No electrical power to vacuum
pump
"Full Tank" shut-down relay
prevents vacuum pump from
operating
Blockage inside bottom of toilet
base
A
(to back of toilet)
Suggested remedy
Check power wires, fuse, or circuit
breaker to the vacuum pump
Pump out the holding tank
See "4 .4 Clearing blockage in toilet
base" on page 8
Flush Ball
(to front of toilet)
Under-travel
condition
Slide cam switch
UP
B
Toilets
EN