Manuals / Dometic / Marine Equipment / Marine Sanitation System

Dometic HTS-EC, 1600 owner manual Troubleshooting Guide

Models: HTS-EC 1600

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TROUBLESHOOTING GUIDE

Problem

Possible Cause

Service Instructions

2. Flush ball will not close

a. Clamp ring is overtightened,

a. Loosen clamp ring.

completely.

causing too much tension on

 

 

seal and flush ball.

 

 

b. Weak or defective flush lever

b. Check spring tension by letting

 

return spring.

up on flush lever suddenly.

 

 

If lever does not snap back,

 

 

replace spring cartridge assembly.

 

 

 

3. Water does not shut off in

a. Dirt lodged in water valve seat.

a. Disassemble and clean water

toilet (toilet overflows).

b. Flush lever cam strap is bent

valve.

 

b. Bend front of cam strap up about

 

down, holding water valve open.

1/16" (1.6mm). (Model 1606 only)

 

c. Worn or defective water valve.

c. Replace water valve.

 

d. Worn or defective flush lever

d. Replace spring cartridge.

 

return spring.

 

 

 

 

4. Water does not enter toilet

a. Low water pressure.

a. Check incoming water pressure.

bowl properly.

b. Water valve clogged.

b. Remove and clean filter screen

 

 

inside water valve inlet.

 

 

 

5. Water leaking from water

a. Loose connection.

a. Tighten bottom cap, inlet fitting

valve. (See Service Tip on

b. Worn or defective water valve.

and outlet hose clamp.

page 8.)

b. Replace water valve.

 

c. Water line connection not seated

c. Remove water line and

 

properly.

assemble correctly.

 

 

 

6. Water leaking from rear of

a. Loose hose connection.

a. Tighten hose clamp.

toilet bowl.

b. Loose vacuum breaker.

b. Check breaker/bowl connection.

(See Service Tip on page

 

If loose, push breaker into bowl.

8.)

c. Defective vacuum breaker.

c. Replace vacuum breaker.

 

d. Cracked or defective toilet bowl.

d. Replace toilet bowl.

 

 

 

7. Vacuum pump running too

a. Flush ball leaks.

a. Leave small amount of water in

much between flushes.

 

toilet. If water is sucked from

(See Vacuum Tester

 

bowl, see problems 1 and 2.

information on page 7.)

b. Vacuum line leak.

b. Check all piping connections

 

c. Duckbill valves in pump not

between toilet and vacuum tank.

 

c. Disassemble inlet and outlet

 

sealing. (This problem occurs

fittings on pump and inspect all

 

gradually. The pump takes

four duckbill valves. If valves

 

longer periods of time to

are not sealing, replace them.

 

shut off between flushes.)

 

 

d. Pump bellows worn or damaged.

d. Inspect bellows in pump for

 

 

small hole or rip.

 

 

Replace if necessary.

 

 

 

8. Toilet will not flush.

a. Vacuum pump will not run.

a. See problem 9.

(No vacuum.)

b. Plugged vacuum line between

b. Disconnect line and clear plug.

 

toilet and vacuum breaker.

c. Make certain pump and duckbill

 

c. Duckbill valves or vacuum pump

 

installed backwards.

valves are installed correctly.

 

 

Replace valves if stuck open.

 

d. Vacuum pump inlet or

d. Disassemble and clean.

 

outlet lines plugged.

 

 

e. Plugged vacuum tank or vacuum

e. Unplug vacuum tank or vacuum

 

generator.

generator.

 

 

 

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Dometic HTS-EC, 1600 owner manual Troubleshooting Guide
Page 10 Page 12

HTS-EC, 1600 specifications

The Dometic 1600 HTS-EC is a versatile and innovative appliance designed to enhance outdoor experiences, especially for campers, RV enthusiasts, and individuals who enjoy outdoor adventures. This product exemplifies Dometic's commitment to quality, convenience, and performance.

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