SeaLand 1 2500 Series User Manual

10

 

1.  Vacuum pump will not run.

 

 

 

 

 

 

 

2.  Vacuum pump will not  

shut off.

3.  Vacuum pump is running too 

slow,  overheating, blowing 

fuses or circuit breaker.

 

4.  Toilet will not flush.

5.  Tank will not discharge us-

ing dockside pump (model 

2520/2521).

a.  No electrical power.

b.  Loose or broken electrical wiring.

c.  Improper electrical connections.

d.  Faulty vacuum switch.

e.  Faulty motor. 

f.  Shut-down relay prevents pumping. 

g.  Replace motor. 

h.  Cassette tank not fully engaged in 

docking platform. 

a.  A vacuum leak exists in system.

b.  Insufficient vacuum (pump creates less 

than 10 inches Hg).

c.  Faulty vacuum switch (pump creates 

more than 10 inches Hg).

d.  Diaphragm not pumping. 

e.  Blockage in inlet of vacuum pump.

a.  Motor is worn or defective.

b.  Plugged vent line or vent filter.

c.  Improper wire size. 

d.  Improper voltage.

e.  Vacuum pump clogged with tissue.

a.  There is a blockage in the toilet.

b.  Hose between toilet and cassette tank 

is collapsed or kinked.

c.  Foreign objects were flushed, causing 

blockage in system. 

d.  Pump will not run.

a.  Tank is not adequately vented.

b.  Blockage in check valve at tank outlet.

c.  Blockage at bottom of discharge  

diptube inside the tank.

a.  Check input power, circuit breaker 

and fuse.

b.  Tighten or reconnect wires at docking 

platform.

c.  Be sure power wires and wires at 

vacuum switch are connected to 

proper terminals.

d.  Replace vacuum switch. 

e.  Replace motor. 

f.   Empty the cassette tank. If cassette 

is not seated in docking platform 

properly, put cassette tank back into 

docking platform until locking latch 

engages. 

g.  Charge battery. 

h.  Engage cassette tank until latch 

secures tank to platform. 

a.  Check for vacuum leaks in system 

with vacuum gauge tester.

b.  Isolate cassette tank (remove elbow 

assembly) and use vacuum gauge to 

check vacuum capability. Could be 

worn valves.

c.  Replace vacuum switch.

d.  Tighten set screw in eccentric to mo-

tor shaft. Otherwise, check for dam-

age to diaphragm and motor shaft. 

Replace if necessary. 

e.  Clear blockage from pump inlet. 

a.  Check motor and replace if  

necessary.

b.  Disassemble and clean out vent line. 

Replace vent filter if  

necessary.

c.  Wire size too small. Check  

“Electrical Installation” section  

for proper wire size.

d.  Check input power for low voltage.

e.  Remove and clean pump  

assembly.

a.  Open flush ball and check the  

1-inch (25mm) orifice at the bottom of 

the base for blockage and dislodge it. 

b.  Inspect hose and replace if collapsed 

or kinked.

c.  Clear foreign objects from system. 

DO NOT flush any non-dissolving 

items (i.e. sanitary napkins, facial  

tissue, wet strength tissue, paper  

towels, etc.) or excessive tissue. 

Before flushing solids, be sure to add 

water by lifting the flush lever. 

d.  See problem 1. 

a.  Open flush valve in toilet by pressing 

on pedal.

b.  Disassemble the check valve and 

remove blockage.

c.  Remove diptube from tank and clear 

blockage.