Thetford 19623 User Manual
Wiring Harness
RV Toilet Service Parts
for Aria/Aria Deluxe
Tools needed
• Phillips Screwdriver • Needle-Nose Pliers
• Adjustable Wrench • Small Clippers
• Small, Flat-blade screwdriver
Note:
• Read all instructions before beginning work.
To Remove Toilet From Floor
1. Turn off RV water supply per RV Owner’s Manual.
2. Press both keypad buttons at the same time, twice, to
open blade and drain bowl of water.
not work, you will have to open the
valve manually. Remove the Sound
Deadening insulation from the back of
the mechanism to access the mechanism lead screw. Use a 5/16” socket
wrench to turn the screw and open the
valve.
3. Pry off Bolt Caps with Flat-blade screwdriver. Use wrench to remove 1/2-inch
Lag Screws.
4. Turn off RV’s power supply to Toilet.
5. Swivel Toilet to gain access to back.
6. Disconnect Water Supply Line with
Adjustable Wrench.
7. Disconnect Toilet’s 12-volt power
hookup to RV.
8. Place an old towel or soft cloth on work
surface. Remove Toilet from floor and
place upright, with back facing you, on
work surface.
9. Remove old Closet Flange Seal (may be
found in toilet or in floor at Closet
Flange). Discard.
10. Cover Holding Tank opening to contain
odor.
If mechanism does
One of 4
Spade
Connectors
Part #19623
3. Use Pliers to gently unplug white Multi-Wire Connector Housing from Controller Assembly. Feed it out
through Boot.
5. Disconnect green and yellow Motor Leads from Wiring Harness. Use pliers if necessary. Discard old Wiring Harness.
To Replace Part
1. Firmly reconnect each of the 4 Spade Connectors to
terminals on the Solenoid Valve: blue on left, brown
on opposite end and 2 white on inside terminals.
2. Feed white, Multi-Wire Assembly through Rubber Boot.
Nylon Tie
Strap
Water
supply
hookup
Overflow
Tube
Sound-
Deadening
Insulation
Wiring
Harness
Keypad
Cable plug
Controller
assembly
To Remove Old Part
1. Using Pliers, gently wiggle the Spade
Connector off each of the 4 terminals
on Solenoid Valve.
2. Use Clippers to cut the tie securing Wiring Harness to Overflow Tube.
3. Slide Rubber Boot away from Controller Assembly.
Form #19641 Rev. 4.26.01
Power
Hookup
Motor Leads
(Green and
Yellow)
Rubber Boot
(pulled away)
White
Multi-wire
Connector
Housing
Part #19623
Wiring Harness
Continued
3. Snap large white Multi-wire Connector Housing, with
raised housing ridge facing inside of toilet, into place.
4. Replace Rubber Boot.
5. Connect Motor Leads to Wiring Harness (green to green
and yellow to yellow).
6. If you have removed the Sound Deadening Insulation,
replace it. Secure with Velcro
7. Use Nylon Tie to resecure Wiring Harness to Overflow
Tube.
TM
strap provided.
To Replace Toilet To Floor
1. Secure new Closet Flange Seal, lip side up, to Toilet.
2. Position Toilet over flange.
3. Reconnect Water Supply Line.
4. Reconnect 12-volt power supply to Toilet.
5. Reconnect RV’s power supply to the Toilet.
6. Turn on RV’s water supply. Press Toilet flush button to
close blade and to flush test.
7. Secure to floor with Lag Screws. Tighten.
8. Resecure Bolt Caps.
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