Description
The Noritz ETFD011 Water Servo – Main (Set) is a genuine OEM replacement component engineered specifically for Noritz tankless water heating systems. This servo assembly is responsible for regulating water flow through the unit, enabling the precise modulation that Noritz tankless heaters depend on for consistent outlet temperatures and efficient operation.
Product Overview
As a factory-authorized part, the ETFD011 ensures a direct-fit, like-for-like replacement that maintains the performance integrity of your Noritz system. Using genuine Noritz components helps preserve manufacturer warranty coverage and avoids the compatibility risks associated with aftermarket alternatives.
Key Features
- Genuine Noritz OEM water servo assembly
- Designed for precise water flow modulation in tankless water heater applications
- Direct replacement — no modifications required for compatible Noritz models
- Sold as a complete set for a comprehensive, ready-to-install repair
- Helps restore proper temperature regulation and system efficiency
- Supports long-term reliability of Noritz tankless water heating systems
Application
The ETFD011 is intended for use in Noritz tankless water heaters that utilize a main water servo for flow control. Always verify compatibility with your specific Noritz model number before installation. Consult the unit’s service manual or a qualified technician for proper installation procedures.
Why Choose Genuine Noritz OEM Parts?
Genuine OEM components are manufactured to the same specifications as the original parts installed at the factory. Choosing the Noritz ETFD011 over aftermarket alternatives ensures proper fit, reliable performance, and peace of mind — keeping your tankless water heater operating at peak efficiency for years to come.







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