Dometic 1000 Series, 500Plus Series owner manual Troubleshooting Guide

Page 11

TROUBLESHOOTING GUIDE

Problem

 

Possible Cause

 

Service Instructions

6. Lifting foot pedal does not

a. Too much clearance between the

a. Adjust cam strap so clearance is

add water to the bowl.

 

cam strap and water valve.

 

.06 inches (1.5mm) maximum.

 

 

 

7. Water leaking from water

a. Water valve body cracked due to

a. Replace water valve.

valve.

 

freeze damage.

b. Insure that threads are not cross-

 

b. Water line connection is loose or not

 

 

seated properly.

 

threaded and tighten.

 

c.

Defective water valve.

c.

Replace water valve.

 

d. Stripped threads.

d. Replace water valve.

 

 

 

8. Water leaking from rear of

a. Worn or defective vacuum breaker.

a. Remove white cap from vacuum

toilet bowl.

 

 

 

breaker. Flush toilet. If water leaks

 

 

 

 

during flush, vacuum breaker

 

b. Loose vacuum breaker.

 

needs to be replaced.

 

b. Secure vacuum breaker

 

c. Cracked or defective toilet bowl.

 

connection.

 

c.

Replace toilet bowl.

 

 

 

9. Water is leaking from the

a. Clamp ring may be loose.

a. Remove plastic base cover (on

base/toilet connection.

 

 

 

applicable models) and tighten the

 

b. Ball seals may be worn or defective.

 

clamp ring.

 

b. Replace ball seals.

 

 

 

10.Vacuum pump running too

a. Water leaks out of bowl between

a. Leave small amount of water in

often between flushes.

 

flush ball and ball seal.

 

bowl. If water is sucked from bowl,

(See Vacuum Tester

b. Vacuum line leak.

 

see problems 1 and 2.

Information on page 9.)

b. Tighten all connections at toilet,

 

 

 

 

vacuum generator or vacuum

 

 

 

 

holding tank (including hose

 

 

 

 

clamps and threaded spin nuts). If

 

 

 

 

leaks persists, contact SeaLand

 

 

 

 

Product Customer Service.

 

 

 

11.Vacuum pump will not

a. A vacuum leak exists.

a. See problem 9b.

shut off.

b. Insufficient vacuum (pump creates

b. Isolate pump and use vacuum

 

 

less than 10 inches Hg).

 

gauge to check vacuum levels.

 

 

 

 

Could be a plugged discharge line

 

c. Faulty vacuum switch (pump creates

 

or worn duckbill valves.

 

c. Replace vacuum switch.

 

 

more than 10 inches Hg).

 

 

 

d. Improper wiring.

d. Refer to wiring diagram to check

 

e. Bellows not pumping.

 

for proper wiring.

 

e. Tighten set screw in eccentric to

 

 

 

 

motor shaft. Otherwise, check for

 

 

 

 

damage to bellows and motor

 

 

 

 

shaft. Replace if necessary.

 

 

 

12.Vacuum pump will not run.

a. No electrical power.

a. Check input power, circuit breaker

 

b. Loose or broken electrical wiring.

 

and fuse.

 

b. Tighten or reconnect wires at

 

 

 

 

vacuum pump and tank, vacuum

 

c.

Improper electrical connections.

 

generator, or vacuum holding tank.

 

c. Make certain wires at vacuum

 

 

 

 

switch are connected to the “B”

 

d. Faulty vacuum switch.

 

terminals.

 

d. To check vacuum switch, short

 

 

 

 

across “B” terminals with jumper

 

e. Faulty motor.

 

wire.

 

e. Replace motor.

 

f.

Shut-down relay prevents pumping.

f.

Empty the holding tank.

 

 

 

 

 

11

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Contents Dometic Corporation Sanitation Systems VacuflushProduct Features Table of ContentsImportant Information Before Operation Marine Sanitation RegulationsKEY System Components Winterizing Proper CleaningSystem Start UP Spare Parts MaintenanceOn Board Spare Parts Calculation Chart Per System Toilet Model Identification Vacuflush Maintenance KITPedestal and Pedal Cover Installation Ordering PartsDeodorants and Special Tissue Vacuum Tester AccessoriesService TIP Problem Possible Cause Service Instructions Troubleshooting GuideTroubleshooting Guide Troubleshooting Guide Model 1147 Description 1148 Parts ListDescription Model 506+ Model 508+ Model 547+ Model 548+ 506+ 508+ 547+ 548+ Description Model 1006 1008 1047 1048 Description Vacuum Generator LOW-PROFILE Vacuum Generator Vacuum Dimensional Specifications Wiring Diagrams Master Sanitation Distributors Parts DistributorsExclusions MANUFACTURER’S ONE-YEAR Limited Warranty