Product Overview

The Pentair 475976 Ignition Control Module is a genuine OEM replacement component designed for the Pentair ETi 400 High-Efficiency Pool and Spa Heater.

The ignition control module is an essential part of the heater's combustion and safety-control system, coordinating the ignition sequence and flame verification during a call for heat. Replacing a failed or damaged module can restore proper ignition operation without requiring replacement of the complete heater.

Key Features

Genuine Pentair OEM Replacement
Factory replacement ignition control module engineered specifically for compatible Pentair ETi 400 heaters.

ETi 400 Compatibility
Designed for the Pentair ETi 400 400,000 BTU high-efficiency pool and spa heater.

Ignition System Control
Works with the heater's ignition components to manage the burner ignition sequence.

Flame Safety Function
Operates as part of the heater's flame-sensing and safety system to help ensure proper burner operation.

Direct Replacement Component
Allows the original ignition control module to be replaced while retaining the existing compatible heater and control components.

Benefits

• Genuine Pentair replacement component
• Restores proper heater ignition functions
• Designed specifically for the ETi 400
• Supports heater flame-safety operation
• Allows component-level repair instead of complete heater replacement
• Ideal for professional heater troubleshooting and service
• Suitable for compatible ETi 400 pool and spa applications

Specifications

Installation Information

Replacement of the ignition control module requires access to the ETi 400 heater's electrical and combustion-control system.

Disconnect electrical power and shut off the gas supply before servicing the heater. Existing wiring and connector locations should be documented before removing the original module. Inspect the ignition wiring, flame sensor, electrodes, connectors, grounding, gas valve wiring, and related control components for damage or corrosion during service.

Because the ignition module is part of a gas-fired appliance safety system, diagnosis and installation should be performed by a qualified pool-heater or gas-service professional.

Confirm Before Ordering

Confirm the heater model and existing component part number before purchase.

Pentair 475976 is specifically identified as:

• Ignition Control Module
• Pentair ETi 400 application
• 400,000 BTU heater application
• Genuine Pentair replacement component

Do not confuse 475976 with 475975, which is the ETi 400 main control board. These are separate electronic components with different functions.

Warranty Information

Pentair warranty coverage varies based on the product, purchase channel, installation, and application. Current Pentair warranty terms provide at least one year of coverage for qualifying pool equipment purchases, with coverage conditions varying between professional and online purchases.

Customer Q&A

Q: Is the Pentair 475976 a genuine OEM part?
Yes. It is a genuine Pentair ignition control module for the ETi 400 heater.

Q: What heater does the 475976 fit?
It is designed for the Pentair ETi 400 High-Efficiency Pool and Spa Heater.

Q: Is this the main ETi 400 control board?
No. The 475976 is the ignition control module. The ETi 400 main control board is a separate component.

Q: What does the ignition control module do?
It operates as part of the heater's ignition and flame-safety system, helping control the burner ignition sequence.

Q: Should this part be professionally installed?
Yes. Gas-heater electrical and ignition-system repairs should be completed by a qualified service professional.