Dometic SANITATION SYSTEM Troubleshooting Guide, Base Assembly, Rear View, Vacuum Toilet, Problem

Models: SANITATION SYSTEM

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TROUBLESHOOTING GUIDE

TROUBLESHOOTING GUIDE

 

BASE ASSEMBLY

ADJUSTING NUT

BALL SEAL

REAR VIEW, VACUUM TOILET

 

FLUSH BALL

 

 

 

 

FLUSH PEDAL

 

 

VACUUM

 

WATER VALVE ASSEMBLY

 

 

 

 

BREAKER

 

 

 

CLAMP RING

 

HOSE

 

 

 

 

 

 

 

 

TOP VALVE CAP

 

 

 

 

 

CONNECTION

 

 

 

 

 

 

 

 

VALVE SEAT

 

 

 

 

 

 

 

FILTER SCREEN

 

 

 

 

 

 

 

 

 

SPRING

 

 

 

 

 

 

CARTRIDGE

 

 

 

 

 

 

SHAFT

 

 

 

 

 

WATER

VALVE BODY

 

 

 

 

 

 

 

 

 

 

 

 

VALVE

 

 

 

VACUUM BREAKER/BOWL CONNECTION

 

SCREWS

 

 

 

 

 

 

 

 

 

 

PEDAL

 

 

 

 

 

 

COVER

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Problem

 

 

Possible Cause

 

Service Instructions

1. Water will not stay in bowl.

a. Loose clamp ring.

 

a. Tighten clamp ring adjusting nut.

 

 

 

b. Improper seal around flush ball due

b. Inspect flush ball and underside of

 

 

 

 

to dirt or debris on underside of ball

 

seal for foreign objects. Clean

 

 

 

 

seal.

 

 

under seal if needed (cleaning tool

 

 

 

 

 

 

 

available – p/n 600344236).

 

 

 

c. Worn or damaged seal.

 

c. Replace seal.

 

 

 

d. Worn or damaged flush ball.

d. Replace flush ball.

 

 

 

 

2.

Plastic flush ball will not

a. Too much friction between flush ball

a. Lubricate between flush ball and

 

close completely.

 

 

and ball seal.

 

 

ball seal with furniture polish or

 

 

 

 

 

 

 

cooking spray.

 

 

 

b. Water valve screws are too tight.

b. Loosen screws slightly.

 

 

 

c.

Defective spring cartridge.

c.

Check spring tension by pushing

 

 

 

 

 

 

 

flush lever down, then release it

 

 

 

 

 

 

 

suddenly. If lever does not snap

 

 

 

 

 

 

 

back into original position, replace

 

 

 

 

 

 

 

spring cartridge.

 

 

 

 

 

3.

Flush ball will not open.

a. Broken shaft.

 

a. Replace shaft.

 

 

 

b. Shaft not fully engaged in the

b. Put pressure on shaft from under

 

 

 

 

spring cartridge.

 

 

the flush ball (pushing into spring

 

 

 

 

 

 

 

cartridge) until it engages. You may

 

 

 

 

 

 

 

have to rotate flush ball slightly until

 

 

 

 

 

 

 

shaft lines up with square in

 

 

 

 

 

 

 

spring cartridge.

 

 

 

 

4.

Water does not shut off in

a. Dirt lodged in water valve seal.

a. Disassemble and clean water

 

toilet (toilet overflows).

 

 

 

 

valve.

 

 

 

 

 

5.

Water does not enter toilet

a. Insufficient water flow rate at toilet.

a.

Check water flow rate at toilet. Rate

 

bowl properly.

 

 

 

 

 

should be 2 gpm (7.6 lpm) at toilet.

 

 

 

b. Water valve clogged.

 

b. Remove and clean screen located

 

 

 

 

 

 

 

at inlet of water valve.

 

 

 

c.

Plugged rim wash holes in toilet.

c.

Clean holes. If still a problem,

 

 

 

 

 

 

 

replace the toilet bowl.

 

 

 

 

6.

Water leaking from water

a. Water valve body cracked due to

a. Replace water valve.

 

valve.

 

 

freeze damage.

 

 

 

 

 

 

b. Water line connection is loose or not b. Insure that threads are not cross-

 

 

 

 

seated properly.

 

 

threaded and tighten.

 

 

 

c.

Defective water valve.

 

c.

Replace water valve.

 

 

 

d.

Stripped threads.

 

d.

Replace water valve.

 

 

 

 

 

 

 

 

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Dometic SANITATION SYSTEM Troubleshooting Guide, Base Assembly, Rear View, Vacuum Toilet, Problem, Possible Cause