Thetford 23709 User manual

Remove waste holding tank.
Remove bowl retainer bracket closest to
the door and take the bowl inner off.
Description: SC250/C260 Electric valve
Part number: 23709
Look for Service Centres, Point of Sale addresses and other
information on: www.thetford-europe.com
Version: 3
Date: Aug 2018
Tools required:
Repair instruction
A
B
Remove retaining clip and electric valve.
Slide hose clamp over water tube and push
new electric valve in. Note: arrow should point
in direction of water flow
C
D
42799/0818

Push tube onto valve and assemble
the hose clamp.
Route the tubing around bowl.
Please note for C250
After closing the bowl, the lip
needs to be on the inside.
Push the bowl inner back in position
and bring tube back on its place.
Rotate the retainer back in position
E
F
G
H
42799/0818

Repair instruction
Toilets
Cassette Toilets
C260
SC Control Panel
50709/93405/93406
ARemove the sticker with a sharp knife Picture
BRemove the control panel with a flat
screwdriver
Picture
CDisconnect the connectors of the
control panel
Picture
DTake new control panel and follow
instruction C-B-A to complete the
toilet
02 5-V0 /

Description: C250CWE/C262CWE Drain
Part number: 50717
Look for Service Centres, Point of Sale addresses and other
information on: www.thetford.eu
Version: 1
Date: June 2010
Tools required: Flat screwdriver
Repair instruction
ATurn drain to the outside.
Place flat screwdriver between
drain and tank and push drain
loose.
Take drain off and press new
drain on.
B
42781/0610

Description: SC250/400 Pour out spout
Part number: 5071992/3230606
Look for Service Centres, Point of Sale addresses and other
information on: www.thetford-europe.com
Version: 1
Date: April 2010
Tools required: -
Repair instruction
Turn pour out spout anti
clockwise and take it
out.
A
BPlace new pour out
spout and turn
clockwise back into
position.
1/1 04/10
51310

08/11 Description : Leaflet
42698 1
A
B
C
Remove waste holding-tank out
of toilet.
Description: SC250/C260 Waste-holding tank plate
Part number: 50723-06
Look for Service Centres, Point of Sale addresses and other
information on: www.thetford-europe.com
Version: 2
Date: August 2011
Tools required: Philips head screwdriver
Repair instruction
D
Using the sliding cover as a
lever, rotate the complete
mechanism anti clockwise until
the arrow points to the second
dot
Remove 3 screws out
of retainer.
Press two ribs from retainer
in, take it off and remove
blade arm.
In case you are operating on a C250 and changing your Holding Tank, The Holding
tank Mechanism, or the plate only of the Holding tank mechanism, it is strongly
recommended to also change the bowl retainer bracket to avoid Leakage !

08/11 Description : Leaflet
42698 2
ETake 1 screw out of bushing
and remove blade driver.
FTake bushing out and
remove blade.
GPress two ribs from blade
opener in which allows to pull
out the blade opener from the
other side.
HTake 6 screws out of seal
retainer and take lip seal
out.
JRemove seal of mechanism.
Note: when placing the
retainer please make
sure that the white pin is
positioned on the dot on
mechanism.
KFor assembling mechanism follow steps in reverse.
Note: when placing the
seal retainer please
make sure that the small
pivot is falling in the
retainer.

Description: SC250/400 Seal mechanism
Part number: 50724
Look for Service Centres, Point of Sale addresses and other
information on: www.thetford-europe.com
Version: 1
Date: April 2010
Tools required: -
Repair instruction
1/1 04/10
B
AUsing the sliding cover
as a lever rotate the
complete mechanism anti
clockwise until the arrow
points to the second dot
Take complete
mechanism out and
place it upside down.
CRemove seal from
mechanism and place
new one.
DFor assembling mechanism follow steps in reverse.
51303

Description: SC250 Waste-holding tank float
Part Number: 50725
Look for Service Centres, Point of Sale addresses and other
information on: www.thetford.eu
Version: V1
Date: June 2010
Tools required:
Repair instruction
A
B
C
While looking down on the top of
the tank you will notice the sliding
cover. Also on the disc there is
an arrow which is pointing to a
solid dot on the main body of the
toilet.
Remove the sliding cover
and re-insert from the
opposite end.
Using the sliding cover as a lever
rotate the complete mechanism anti
clockwise until the arrow points to the
second dot.
.
.
1/2 06/1042691

DThe complete disc and
mechanism can now be removed.
F
EThe float should be easily visible
however if it has been washed away the
float housing can be found between the
wheels towards the top of the tank
The float simply unclips and clips
back into place, when replacing
the float ensure the fin is
positioned towards the base of
the waste tank.
GNow you can simply replace the
mechanism and rotate back into
position.
Return the sliding to cover to
it’s original position, fill the
waste tank with clean water
and test.
2/2 06/1042691
MvS6

A
B
Turn waste-holdingtank
upside down.
Place your hand on the side of the
wheel and pull it out.
1/1 06/10
Description: SC250 Waste-holding tank wheels
Part number: 50726
Look for Service Centres, Point of Sale addresses and other
information on: www.thetford-europe.com
Version: 1
Date: June 2010
Tools required: -
Repair instruction
42699

08/11 Description : Leaflet
42694 1
In case you are operating on a C250 and changing your Holding Tank, The Holding tank
Mechanism, or the plate only of the Holding tank mechanism, it is strongly
recommended to also change the bowl retainer bracket to avoid Leakage !
Description: SC250/C260 Waste-holding tank mechanism
Part Number: 50727-06
Look for Service Centres, Point of Sale addresses and other information on:
www.thetford.eu
Version: V2
Date: August 2011
Tools required:
Repair instruction
A
B
C
While looking down on the top of the
tank you will notice the sliding cover.
Also on the disc there is an arrow
which is pointing to a solid dot on the
main body of the toilet.
Remove the sliding cover and
re-insert from the opposite end.
Using the sliding cover as a lever rotate
the complete mechanism anti clockwise
until the arrow points to the second dot.
.
.
DThe complete disc and mechanism can
now be removed, reverse the process to
re-attach the new mechanism.

A
B
C
Turn waste holding-tank
upside down.
Place flat head screwdriver
underneath rib and take one
complete rib out, if not broken yet.
Place screwdriver in handle and
push down so that handle can be
taken out completely.
1/1 06/10
Description: SC250 Pull handle
Part number: 50728
Look for Service Centres, Point of Sale addresses and other
information on: www.thetford-europe.com
Version: 1
Date: June 2010
Tools required: Flat head screwdriver
Repair instruction
DAt the end pull guide of the handle
up and remove spring.
EAssemble new pull handle and follow steps in reverse.
42696

Description: SC250/400 Blade
Part number: 50731
Look for Service Centres, Point of Sale addresses and other
information on: www.thetford-europe.com
Version: 1
Date: April 2010
Tools required: Crosshead screwdriver
Repair instruction
1/2 04/10
CRemove 3 screws out
of retainer.
B
AUsing the sliding cover
as a lever rotate the
complete mechanism anti
clockwise until the arrow
points to the second dot
Take complete
mechanism out and
place it upside down.
51304

2/2 04/10
DPress two ribs from
retainer in and take it off.
Remove blade arm.
ETake 1 screw out of
bushing and remove
blade driver.
FTake bushing out and
remove blade.
GFor assembling new blade follow steps in reverse.
51304

A
B
C
Remove waste holding-tank
out of toilet.
1/2 06/10
Description: SC250 Float stem
Part number: 50732
Look for Service Centres, Point of Sale addresses and other
information on: www.thetford-europe.com
Version: 1
Date: June 2010
Tools required: Flat head screwdriver
Repair instruction
D
Using the sliding cover as a
lever rotate the complete
mechanism anti clockwise
until the arrow points to the
second dot
Place flat screwdriver
under plate and press
it out, and remove
plate.
While going with one hand in
the waste-holding tank, press
the vent lifter from the top so
that the float stem can be
turned out (see circle) from
within the holding tank.
42692

2/2 06/10
E
F
42692
By pulling the vent lifter a bit
up, the spring can be
replaced.
Float stem which was inside
waste-holding tank.
Follow steps in reverse to assemble new float stem.

08/11 Description: leaflet 42782 1
Description: C250/C260 Bowl retainer bracket
Part number: 50733
Look for Service Centres, Point of Sale addresses and other
information on: www.thetford.eu
Version: V2
Date: 15/08/2011
Tools required: Flat screwdriver
A
Repair instruction
Place flat screwdriver between
bracket and bowl, hold this
position while pushing the
bracket to the left with your
thumb.
Remove waste-holding
tank out Cassette toilet.
In case you are operating on a C250 and changing your Holding Tank, The Holding tank
Mechanism, or the plate only of the Holding tank mechanism, it is strongly
recommended to also change the bowl retainer bracket to avoid Leakage !
Remove bracket.
Place new bracket and push
to the right so the bracket will
be locked again.
B
C
D

Description: C250/C260 Saddle
Part number: 50735
Look for Service Centres, Point of Sale addresses and other
information on: www.thetford.eu
Version: 1
Date: June 2010
Tools required: Philips crosshead screwdriver
Repair instruction
B
A
Remove one screw out of
saddle and screw new
saddle in.
Note: when new saddle is
placed in position, please
make sure that the gear
wheel is falling into the
gear ring. Screwing the
new gear wheel in, do not
fix the screw too hard. The
gear wheel should be easy
to rotate.
Remove waste-holding
tank out Cassette toilet.
Gear wheel
Gear ring
42783/0610

A
B
C
Remove waste holding-tank
out of toilet.
Place flat head screwdriver between
handle grip cover and lift it up.
Press with screwdriver 2
outstanding ribs on inside handle in
and take handle off.
1/1 06/10
Description: SC250 Handle grip cover
Part number: 50737-92
Look for Service Centres, Point of Sale addresses and other
information on: www.thetford-europe.com
Version: 1
Date: June 2010
Tools required: Flat head screwdriver
Repair instruction
1
2
DPlace new handle grip cover.
42693