Troubleshooting - Dometic MASTERFLUSH MF 7100 Notice D'utilisation

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Troubleshooting

Problem
1. Flush function works, but water
in bowl empties slowly or not
at all.
2. Macerator pump makes
unusually loud noise or
continually trips breaker.
3. Flush cycle is not activated after
4. Insufficient or no water enters
the bowl.
Possible Cause
a. Discharge piping is pinched or
kinked.
b. Discharge piping is too high.
(Remember, all upward vertical
loops and should not exceed a
total of 4 feet (1.2 m) in height.)
c. The macerator pump or
discharge piping is blocked.
a. Foreign material in pump
chamber.
a. Holding tank is full and signal
from tank has shut down
electrical power to toilet.
b. Electrical power to toilet is shut
off or disrupted.
c. Flush switch is malfunctioning.
a. Water supply line is pinched or
kinked.
b. Screen in water valve is blocked.
c. Intake water filters are blocked
(in sea water system).
d. Water valve is malfunctioning.
Dometic MasterFlush
Service Instruction
a. Check discharge piping.
b. Reroute discharge piping.
c. Close seacocks and clear
blockage.
a. Close seacocks and clear foreign
material.
a. Empty holding tank.
b. Check wiring and circuit
breakers (or fuses).
a. Check water supply line.
b. Clear blockage at water valve.
c. Clear water filters.
d. Replace water valve.
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