A genuine OEM Thetford reed switch designed for C250 cassette toilets. This small but essential electronic sensor detects when the waste-holding tank is full, allowing the toilet’s indicator light to function correctly. If your toilet’s red “tank full” light is not working or constantly showing on, this is the replacement part you need.

OEM Part Number: 50713

Part Number: 50713

Component Type: Magnetic reed switch (tank full sensor)

Voltage: Low-voltage signal component

Connection: Push-fit plug with two-wire connector

Kit Includees: 1 × Reed switch sensor assembly (toilet body side)

Compatability:

• Designed for Thetford C250 and C260 cassette toilets

• Works with both manual and electric flush models

• Located on the toilet body, interacting with the float magnet inside the waste tank

Not suitable for C200, C220, or C400 models 

Frequently Asked Questions

Q: What does the reed switch do?
It detects when the magnet inside the waste-tank float reaches the sensor level and sends a signal to the toilet’s red “full” indicator light.

Q: Where is the reed switch located?
It sits in a small housing on the side of the toilet bowl assembly, close to where the waste tank slides in