SeaLand 1 2500 Series owner manual Troubleshooting, Problem Possible Cause Service Instructions

Page 10

TROUBLESHOOTING

 

Problem

 

Possible Cause

 

Service Instructions

 

 

 

 

 

 

1.

Vacuum pump will not run.

a.

No electrical power.

a.

Check input power, circuit breaker

 

 

b.

Loose or broken electrical wiring.

b.

and fuse.

 

 

Tighten or reconnect wires at docking

 

 

c.

Improper electrical connections.

c.

platform.

 

 

Be sure power wires and wires at

 

 

 

 

 

vacuum switch are connected to

 

 

d.

Faulty vacuum switch.

d.

proper terminals.

 

 

Replace vacuum switch.

 

 

e.

Faulty motor.

e.

Replace motor.

 

 

f.

Shut-down relay prevents pumping.

f.

Empty the cassette tank. If cassette

 

 

 

 

 

is not seated in docking platform

 

 

 

 

 

properly, put cassette tank back into

 

 

 

 

 

docking platform until locking latch

 

 

g.

Replace motor.

g.

engages.

 

 

Charge battery.

 

 

h.

Cassette tank not fully engaged in

h.

Engage cassette tank until latch

 

 

 

docking platform.

 

secures tank to platform.

 

 

 

 

 

2. Vacuum pump will not

a.

A vacuum leak exists in system.

a.

Check for vacuum leaks in system

 

shut off.

b.

Insufficient vacuum (pump creates less

b.

with vacuum gauge tester.

 

 

Isolate cassette tank (remove elbow

 

 

 

than 10 inches Hg).

 

assembly) and use vacuum gauge to

 

 

 

 

 

check vacuum capability. Could be

 

 

c.

Faulty vacuum switch (pump creates

c.

worn valves.

 

 

Replace vacuum switch.

 

 

 

more than 10 inches Hg).

 

 

 

 

d.

Diaphragm not pumping.

d.

Tighten set screw in eccentric to mo-

 

 

 

 

 

tor shaft. Otherwise, check for dam-

 

 

 

 

 

age to diaphragm and motor shaft.

 

 

e.

Blockage in inlet of vacuum pump.

e.

Replace if necessary.

 

 

Clear blockage from pump inlet.

 

 

 

 

 

3. Vacuum pump is running too

a.

Motor is worn or defective.

a.

Check motor and replace if

 

slow, overheating, blowing

b.

Plugged vent line or vent filter.

b.

necessary.

 

fuses or circuit breaker.

Disassemble and clean out vent line.

 

 

 

 

 

Replace vent filter if

 

 

c.

Improper wire size.

c.

necessary.

 

 

Wire size too small. Check

 

 

 

 

 

“Electrical Installation” section

 

 

d.

Improper voltage.

d.

for proper wire size.

 

 

Check input power for low voltage.

 

 

e. Vacuum pump clogged with tissue.

e. Remove and clean pump

 

 

 

 

 

assembly.

 

 

 

 

 

 

4.

Toilet will not flush.

a.

There is a blockage in the toilet.

a.

Open flush ball and check the

 

 

 

 

 

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

 

 

 

 

 

the base for blockage and dislodge it.

 

 

 

 

 

Never use drain-opening or other

 

 

b.

Hose between toilet and cassette tank

b.

household plumbing chemicals.

 

 

Inspect hose and replace if collapsed

 

 

c.

is collapsed or kinked.

c.

or kinked.

 

 

Foreign objects were flushed, causing

Clear foreign objects from system.

 

 

 

blockage in 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

 

 

d.

Pump will not run.

d.

water by lifting the flush lever.

 

 

See problem 1.

 

 

 

 

 

5. Tank will not discharge us-

a.

Tank is not adequately vented.

a.

Open flush valve in toilet by pressing

 

ing dockside pump (model

b.

Blockage in check valve at tank outlet.

b.

on pedal.

 

2520/2521).

Disassemble the check valve and

 

 

c.

Blockage at bottom of discharge

c.

remove blockage.

 

 

Remove diptube from tank and clear

 

 

 

diptube inside the tank.

 

blockage.

 

 

 

 

 

 

10

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Contents Series Dometic Corporation Sanitation SystemsIntroduction Table of ContentsFor Your Safety System ComponentsSystem Guidelines InstallationSanitation System Layout Docking Platform RiserConnecting Sanitation Hose Inserting Cassette TankDo not restrict the ability to pull the hose or pipe HOW to Make System Installation and Maintenance EasierHose Layouts Connecting Status Panel to Docking Platform Circuit Board Electrical InstallationRED + White Wiring Diagram Display Panel START-UP ChecklistOperation Flushing the ToiletEmptying Cassette Tank models 2520 Cleaning Cassette Tank and Docking PlatformEmptying Cassette Tank model Changing the Vent FilterTroubleshooting Problem Possible Cause Service InstructionsModel Model 2520 SpecificationsCustomer Service MSDImplied Warranties MANUFACTURER’S ONE-YEAR Limited WarrantyExclusions Other Rights

1 2500 Series specifications

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