Jandy | R0456300 | Transformer – LXi Low NOₓ Heater

This OEM replacement transformer is designed for Jandy LXi Low NOₓ pool and spa heaters (250 kBTU / 300 kBTU / 400 kBTU models). It restores the correct primary-to-secondary voltage conversion required for the heater’s control system to function reliably. 

Key Features

• Genuine Jandy/Zodiac OEM transformer – part number R0456300. 

• Compatible with LXi Low NOₓ heater models: 250 kBTU, 300 kBTU and 400 kBTU. 

• Converts mains voltage to required control voltage for ignition and controller boards. 

• Direct drop-in replacement — factory mounting and wiring compatibility for LXi heaters.

• Suitable for service technicians stocking heater rebuild components for low-NOₓ installations.

Product Overview
The R0456300 transformer plays a critical role in the control architecture of Jandy LXi Low NOₓ heaters. When the original transformer fails due to overload, age, or environmental stress, the heater may lose control board power, fail to ignite, or produce fault codes related to power loss. This replacement restores the correct voltage supply to the ignition control, sensors and blower control circuits.

For your e-commerce catalog, this part should be positioned under “Heater Electrical & Control Parts – LXi Series.” Highlight that it is a factory-specified replacement ensuring compatibility and warranty alignment for LXi models. It’s ideal for professional pool service providers and advanced do-it-yourself technicians performing heater servicing or rebuilds.