54
WATERMAZE SERIES
OPERATOR’S MANUAL
WB • 8.913-984.0-L
AIR PUMP
PROBLEM
POSSIBLE CAUSE
SOLUTION
AIR PUMP
WON’T START
Long float, top micro switches not ener-
gized. Water too high
Keep evaporating or manually lower
the water level.
Air regulator setting adjusted too low
Readjust air regulator to between 50
and 100 psi.
Air pump solenoid plugged
Clean out.
No voltage to air pump solenoid coil
Check wiring in electrical box. Re-
place parts as needed.
Bad air pump solenoid coil
Replace solenoid coil.
WASTEWATER
DISCHARGING FROM
AIR PUMP EXHAUST
Check for diaphragm rupture
If ruptured, replace.
Check for diaphragm nut
Tighten nut.
AIR BUBBLES IN
DISCHARGE HOSE
Check connections of suction
plumbing
If loose, retighten.
Check band clamps on intake manifold
If loose, retighten.
Check o-rings between intake manifold and
fluid caps
Replace o-rings if worn.
Check tightness of diaphragm nut
Tighten nut.
AIR PUMP BLOWS AIR
OUT MAIN EXHAUST
WHEN STALLED ON
EITHER STROKE
Check U cups on spool in major valve
Replace if needed.
Check valve plate and insert for wear
Replace if needed.
Check sleeve and o-ring on diaphragm
connecting rod
Replace if needed.
Check o-rings on piston for wear
Replace if needed.
LOW DISCHARGE
G.P.M.
Check air supply
Adjust to between 50 and 100 psi.
Check for plugged discharge hose
Unplug discharge hose.
For the pump to prime itself it must be
mounted in a vertical position so that the
balls will check by gravity
Level machine.
Check for pump cavitation - suction pipe
should be 1/2" minimum or larger if high
vicosity fluids are being pumped. Suction
hose must be noncollapsible type, capable
of pulling a high vacuum
Replace hoses if undersized.
Check all joints on intake manifolds and
suction connections These must be air tight
Tighten all joints and connections.
Check for sticking or improperly
seating valves
Clean check valves.
If pump cycles at a high rate or runs errati-
cally, check piston o-rings for wear
Replace o-rings if needed.
TROUBLESHOOTING
