Replacement Parts Diagram for Pentair ETi 400 Heater
Replacement Parts Diagram for Pentair ETi 400 Heater with Clickable Hotspots for Sensors, Thermistors, Control Boards, and Electrical Components
Use the interactive diagram above to identify replacement parts for your Pentair ETi 400 gas heater, then explore the listings below for compatibility, detailed specs, and best local pricing.
The 475601 Stack Flue Sensor monitors exhaust temperatures in ETi 400 heaters to ensure safe and efficient operation.
Control heater functions with the 475984 Membrane Pad, the external user interface designed for Pentair ETi 400 gas heaters.
Regulate water temperature accurately using the 42001-0053S Thermistor, compatible with ETi 400, MasterTemp, and Max-E-Therm models.
The 42001-0107S Dual Voltage Transformer Kit supplies 24V power and supports 115V/230V input for Pentair heater models.
Protect critical safety circuits with the 32850-0099 Fireman's Switch Fuse, a 1.25 amp fuse used across Pentair's ETi 400, MasterTemp, and Max-E-Therm series.
The 475978 Heater Fan Control Board regulates blower operation and fan control functions in ETi 400 heaters.
All Pentair ETi 400 heater replacement parts—sensors, thermistors, fuses, and control boards—are in stock with full diagram support and best local pricing.