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DYNAMO & FLOW CONTROLLER
Manufacturer Resources
Product Specs
- Product Group:
- Washroom/Bath Accessories
- Product Subgroup:
- Parts and Accessories
- Product Type:
- dynamo flow controller
- Parts and Accessories Type:
- Controller
- Department:
- Plumbing
TOTO TH559EDV468 – Frequently Asked Questions
1) What exactly is the TOTO TH559EDV468 part?
TH559EDV468 is a TOTO solenoid and diaphragm assembly unit covering the dynamo and flow controller portion of a sensor faucet. The solenoid opens and closes the water path on a signal from the sensor, and the diaphragm is the flexible seal that actually does the shut-off, so this assembly is what you replace when a self-powered sensor faucet stops running, runs continuously, or dribbles after the hand leaves the sensor.
2) Will this TOTO repair part fit any brand of sensor faucet?
It is a TOTO service part, identified by TOTO part number TH559EDV468, and should be ordered against a TOTO sensor faucet. Solenoid and diaphragm assemblies are brand and model specific in their porting and electrical connection, so match the part number to the faucet model you are servicing rather than treating it as a universal cartridge.
3) Is TH559EDV468 a single part number or are there options to choose?
There is one configuration only. TOTO sells it as the single part number TH559EDV468, so there is no finish, voltage, or size selection to make on the order.
4) Do I need to replace the solenoid and diaphragm separately on a TOTO sensor faucet?
No. TH559EDV468 comes as one assembled solenoid and diaphragm unit, so you swap it as a complete piece rather than trying to seat a new diaphragm into an old solenoid body. That matters for maintenance crews, since a mis-seated diaphragm is a common cause of a repeat callback on a sensor faucet.
5) Faucet runs non-stop or won't start - is the solenoid the part to order?
A sensor faucet that runs continuously, fails to start, or weeps after shutoff usually points at the solenoid and diaphragm rather than the sensor eye, and TH559EDV468 is the TOTO assembly that covers both the dynamo and flow controller side of that circuit. If the faucet still responds (you hear the solenoid click) but flow is wrong, the diaphragm in this assembly is the usual culprit.
How fast can I get the TOTO TH559EDV468 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
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Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit,
reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the TOTO TH559EDV468 come with a warranty?
Absolutely. The TOTO TH559EDV468 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the TOTO TH559EDV468?
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