Dometic SANITATION SYSTEM owner manual TROUBLESHOOTING GUIDE cont’d, Problem, Possible Cause

Models: SANITATION SYSTEM

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dislodge it. Never use drain-

TROUBLESHOOTING GUIDE (cont’d)

Problem

 

Possible Cause

 

Service Instructions

13.Toilet will not flush.

a. There is a blockage in the system.

a. Open flush ball and check the 1-

(No vacuum.)

 

 

 

inch (25mm) orifice at the bottom

See problems 3 and 14

 

 

 

of the base for blockage and

if necessary.

 

 

 

dislodge it. Never use drain-

 

 

 

 

opening or other household

 

 

 

 

plumbing chemicals.

 

 

 

 

If blockage is not in base, it may be

 

 

 

 

found in these locations:

 

 

 

 

• inlet of vacuum generator

 

 

 

 

• diptube of vacuum generator

 

 

 

 

• inlet of vacuum pump

 

 

 

 

• outlet of vacuum tank

 

b. Pump will not run.

b. See problem 11.

 

c.

Duckbill valves in vacuum pump

c.

Replace duckbill valves, making

 

 

are inverted due to blocked

 

sure they point in the correct

 

 

discharge line or an attempt to

 

direction.

 

 

pump out against closed seacock.

 

 

 

 

 

14.Blockage between toilet and

a. Collapsed vacuum line.

a. Inspect vacuum line for collapsed

vacuum generator.

b. Sharp bends or kinks in vacuum

 

condition and replace line if needed.

 

b. Inspect vacuum hose for kinks or

 

 

hose.

 

bends. If less than 8.5-inches

 

 

 

 

(216mm) radius on any bend,

 

 

 

 

reposition hose to achieve

 

 

 

 

minimum 8.5-inch bend radius.

 

c.

Improper operation of toilet.

c.

Make sure each person using toilet

 

 

 

 

knows correct procedure.

 

d. Foreign objects were flushed

d. DO NOT flush any non-dissolving

 

 

down toilet.

 

items (i.e. sanitary napkins, facial

 

 

 

 

tissue, wet strength tissue, paper

 

 

 

 

towels, etc.) or excessive toilet

 

 

 

 

tissue. Rapid-dissolving SeaLand

 

 

 

 

brand toilet tissue is best.

 

 

 

15.Pump emits odor.

a. Loose or defective hose

a. Tighten connections or replace

 

 

connection on pump.

 

hose and make new connections.

 

b.

Loose intake or discharge fittings

b.

Tighten intake or discharge fittings

 

 

on pump.

 

on pump. Replace nipples or

 

 

 

 

adapters if necessary.

 

c. Worn, torn or punctured pump

c. Replace pump bellows or

 

 

bellows (vacuum generator) or

 

diaphragm.

 

 

diaphragm (vacuum holding tank).

 

 

 

 

 

 

 

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Dometic SANITATION SYSTEM TROUBLESHOOTING GUIDE cont’d, Problem, Possible Cause, Service Instructions, plumbing chemicals