Dometic 4300 Series Operating, Troubleshooting And Technical Cheat Sheet

4
Dometic 4300/4400 Series Toilets Troubleshooting
Symptom Possible Cause Service Instruction
3. Water will not enter toilet bowl,
but toilet ushes.
Blocked water supply or electrical
failure.
• Blockageinwaterlinetotoilet.
Remove line and clear.
• Filterscreenatwatervalveinlet
is clogged with debris. Remove
water line and clear debris.
• Looseordefectivewiringbe-
tween water valve and terminal
block pins 1 and 8.
• Defectivewatervalve.Replace
with new water valve.
4. Water will not enter toilet bowl
when ush handle or wall switch
is in “Add Water” position.
Electrical connection failure. • Looseordefectivewiring
between ush switch and
terminal block pins 1 and 3.
• Defectiveushswitch.Replace
with new ush switch.
5. Water will not shut off and
overows toilet bowl.
Water valve-related failure. • Debrisinwatervalve.
• Defectivewatervalve.Replace
with new water valve.
6. Flush ball constantly cycles
between open and closed
position.
Component adjustment required or
defective component.
• Camswitchneedsadjustment.
See adjustment procedure for
ush ball over-travel on p. 6.
• Camswitchisdefective.
Replace.
• Drivelinkagedefective.See
replacementinstructions,p.7.
• Shortedwiringbetweenush
switch and terminal block pins 2
and 3.
• Defectiveushswitch.Replace.
7.Flushballopensslowlyandwill
not open when manual ush
lever is pressed.
Component adjustment required or
defective component.
• Flushspringisdefective.
Replace.
• Excessivedragbetweenush
ball and ush ball seal. Lubricate
ush ball and seal with silicone
spray.
8. Flush switch must be held
in “Flush” position to close
ush ball.
Defective electrical component. • Looseordefectivewiring
between cam switch and
terminal block pins 2, 3 and 6.
• Camswitchisdefective.
Replace.
9. Flush ball will not close
completely.
Component adjustment required or
defective component.
• Camswitchneedsadjustment.
See adjustment procedure for
ush ball over-travel or under-
travel, p. 11.
• Camswitchisdefective.
Replace.
• Rotorshaftcamislooseor
defective. If defective, see
replacementinstructions,p.7.
• Drivelinkageisworn.See
replacementinstructions,p.7.
Caution - Motor starts automatically
Turn off electrical power before servicing.
Caution - Electrical system
Turn off electrical power before servicing.

Dometic 4300 Series Specifications

General

Brand	Dometic
Model	4300 Series
Category	Toilets
Language	English