SeaLand 8700 Series MasterFlush Toilet Operation Manual - Manual (Page 10)

10
8 Troubleshooting
Problem Possible Cause Service Instruction
1 . Flush cycle operates correctly
but water in the bowl empties
slowly or not at all .
a. Discharge piping is pinched or
kinked .
b. Discharge piping is too high.
(Remember, all upward vertical
loops should not exceed a total
of 9.8 feet / 3 m in height.)
c . The macerator pump or
discharge piping is blocked .
a . Check discharge piping .
b. Reroute discharge piping.
c . Close seacocks and clear
blockage .
2 . Macerator pump makes
unusually loud noise or
continually trips breaker .
a . Foreign material in pump
chamber .
a . Close seacocks and clear foreign
material .
3 . Flush cycle is not activated
after pushing on flush switch or
handle .
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 .
d . Circuit board in control module is
malfunctioning .
a . Empty holding tank .
b . Check wiring and circuit
breakers (or fuses) .
c. Replace flush switch.
d. Replace control module.
4 . Insufficient or no water enters
the bowl .
a . Water supply line is pinched or
kinked .
b . Screen in water valve is blocked .
c . Intake water filters are blocked
(in raw water system) .
d . Water valve is malfunctioning .
a . Check water supply line .
b . Clear blockage at water valve .
c . Clear water filters .
d. Replace water valve.
5. Insufficient water flow during
bidet operation .
a . Clogged inlet screen at hot or
cold connection at toilet/bidet
mixer valve .
b . Clogged aerator in bidet nozzle
inside toilet bowl .
c. Toilet/bidet mixer valve assembly
is not functioning properly .
a. Disconnect water lines from
mixer valve and clean screens .
b. Unthread aerator nozzle and
clean .
c. Replace mixer valve assembly.
Troubleshooting Dometic 8700 Series MasterFlush Toilet
RAW WATER SYSTEM
Parts required:
• 1.5 in. (38 mm) ID hose, about 3 ft. (1 m) long
• 0.625 in. (16 mm) ID hose, about 3 ft. (1 m) long
• two containers
1. Close intake and discharge seacocks. See Hazard of Flooding risks in this manual.
2 . Turn off power to toilet .
3. Disconnect and drain intake hose, discharge hose, and in-line filters.
4. Connect 0.625 in. (16 mm) ID hose to raw water pump intake and 1.5 in. (38 mm) ID hose to toilet
discharge .
5. Place one container under hose connected to toilet’s discharge.
6. Place hose connected to intake pump into bucket with antifreeze and pour antifreeze in other
container .
7. Turn on power to toilet and flush until antifreeze is removed from toilet.
8. Disconnect power to toilet and reconnect all intake and drain hoses.