WATER INLET SYSTEM
PROBLEM
Floor near the unit is wet. Water flow is too heavy. Water inlet hose is loose at supply hose or
The unit overflows from sump tank or is spitting
water through fan.
PLUMBING ASSEMBLY
PROBLEM
Water spitting from the unit.
Water leaking from drain valve.
Water leaking from spray bar valve.
SPRAY BAR ASSEMBLY
PROBLEM
Too many dry streaks in the pads.
Water spitting from the unit.
Excess water in air coming from the fan.
SUBMERSIBLE PUMPS PROBLEM CHECK SOLUTION
PROBLEM
Pump will not run when switch is turned on.
Pump hums when switch is turned on but does
not pump water.
Breaker trips or fuse blows when switch is
turned on.
Pump cycling on and off periodically.
Pump will not run and power is available and
pump is functional.
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TROUBLESHOOTING CONTINUED
CHECK
inlet hose is loose at bulkhead fitting.
Float valve is loose at bulkhead fitting or at
float valve.
Water pressure is too high to allow float valve
to shutoff. (50 psi max.)
Float valve is not seating properly.
Spray bar valve adjustment.
CHECK
Cracked riser assembly. Spray bar adjustment
valve.
Washer worn.
Stem worn.
Washer worn.
Stem worn.
CHECK
Holes in spray bar blocked by foreign
material.
Hose connection loose.
Pad installation.
CHECK
Power cord, switches, circuit breaker, switch
box, connection, etc.
Air lock in hose.
Inlet filter clogged.
Pump motor locked.
Other items on circuit.
Wiring short in line between pump and
switch box.
Sump tank is empty.
Spray bar valve is closed.
Switch making closure contact.
SOLUTION
Adjust water flow. Tighten connections and/
or replace hose washers.
Tighten connections and/or replace hose
washer.
Reduce water pressure by checking in-line
reducer.
Check for particles in valve. Replace valve.
Close down adjustment valve to reduce
excess water flow.
SOLUTION
Replace riser assembly.
Replace washer.
Replace drain valve.
Replace washer.
Replace spray bar valve.
SOLUTION
Remove and clean spray bar.
Clean individual holes.
Tighten hose.
Replace hose and washer.
Reseat spray bar end caps.
Pads must be installed according to air
flow direction label on the pad.
SOLUTION
Reconnect power, reset breaker or
reconnect in switch box.
Disconnect hose at base of pump, run
pump to release air, then reconnect.
Clean filter.
Replace pump.
Remove other items.
Check and/or replace wiring.
Fill with water.
Open valve.
Check continuity/replace switch.
0621 IH-3030