Marine Head Manual P/N 24533
7
June 25, 2002
TROUBLESHOOTING
Your Microflush
®
toilet is designed to give you years of trouble-free operation. Please check the following
before beginning any service or repair:
Water supply: 1
Is the water turned on?
2
Is the water pressure between
20 and 50 psi at the toilet
for pressure water system?
3
Is there 6 feet minimum of head for gravity systems?
Fluctuating or high water pressure can cause intermittent problems with the toilet operation.
Check the water pressure at different times of the day (i.e., early morning, noon, evening) to
determine if you have fluctuating or high water pressure. A pressure-reducing valve installed on
the incoming water line will assure you have even pressure. Make sure no check valve is
installed before the Air/Water Sequence Valve.
Air system:
1
Is the air turned on?
2
Is the air pressure set at a constant
60-65 psi at the toilet
?
3
Do you have any air leaks or kinks in the air system?
4
Do you have water in the air system?
This usually causes irregular timing.
Drain the compressor tank and check the filter regulator and drip leg(s) for water. To check for
water in Air/Water Seq. Valve, remove Bleed-Off Plug, put finger over screw opening and flush.
If water is present, it will squirt out. If water is detected, then the air cylinder and airlines must
also be drained.
Cycle time:
1
Is the flapper cycle time set correctly at 4-8 seconds?
2
Is the bleed off assembly plug blocked? Remove, clean and reinstall (see page 5).
Trouble
Possible Causes
Correction
Flapper does not open.
Water does not flow.
Nothing happens.
1 No Air Supply to Microflush.
2 Water has accumulated in
Air/Water Sequence Valve
1 Supply compressed air at 60-65
psi at the toilet
2 See 'Check Air System" above.
Flapper opens and closes 4-8
seconds after handle is released,
but no water enters bowl.
1 No water supply to Microflush.
2 Water turned off.
1 Supply water at 20-50 psi.
2 Open angle stop (shut-off
valve).
Flapper opens when flushed, and
closes immediately when activator
is released.
1 Excessively high water
pressure.
2 Debris in check valve at base of
Air/Water Sequence Valve.
1 Install water pressure
regulating valve, set at 20-50
psi.
2 Clean Air/Water Seq. Valve.
Flapper opens and will not close.
Bleed Off plug blocked.
Remove, clean or replace,
reinstall.
Water continues to run when
Microflush is not in use.
Foreign object is under water
valve in Air/Water Sequence
Valve.
Clean Air/Water Sequence Valve.
Reference Service Kit P/N 95057.
Water splashes when flushed.
Water is too high in bowl.
Reduce incoming water via angle
stop.
Flush cycle is too long.
Bleed-Off Plug blocked.
Remove, clean or replace,
reinstall.
Flush cycle is too short.
Air line leakage.
Check for air leakage at all
connections.
If other problems are encountered, please contact the factory: Toll Free: 1-800-358-8280
