Jandy R0456300 Transformer Kit Part Number: R0456300 Description OEM replacement transformer for Jandy/Zodiac LXi and JXi series Low NOx pool and spa heaters (models 200, 250, 300, 400). This transformer provides the low-voltage control power required for proper ignition and system operation. Compatibility & Fitment Fits Jandy/Zodiac LXi and JXi Low NOx heater models (such as LXi250, LXi300, LXi400). :contentReference[oaicite:0]{index=0} Replaces earlier transformer part numbers including E0263200 in those heater series. :contentReference[oaicite:1]{index=1} Applicable to residential in-ground and spa installations where heater controls require a dedicated transformer supply. :contentReference[oaicite:2]{index=2} Features & Specifications Input: 120 V/240 V AC (depending on heater model) with proper field wiring. Output: 24 V AC low-voltage control circuit for heater ignition components. :contentReference[oaicite:3]{index=3} Includes mounting hardware and leads for direct replacement in heater control box or transformer compartment. :contentReference[oaicite:4]{index=4} Genuine Jandy (Zodiac) part—ensures proper form, fit and function. :contentReference[oaicite:5]{index=5} Installation Notes Disconnect all power to the heater. Ensure the heater is cool and gas supply is shut off. Remove the access panel and locate the existing transformer. Unwire the primary (line side) and secondary (control side) leads. Install the R0456300 in the same mounting position, connect primary leads according to heater wiring diagram, and connect the secondary leads to the control board. Replace the access panel and restore power, then test heater operation to verify ignition and control circuit are functioning correctly. Maintenance Tip Include transformer checks in annual heater service. Look for loose connections, discoloration around terminals or overheating signs. Replacing the transformer early on restores proper control circuit voltage, prevents ignition failures and helps maintain safe, efficient heater operation.
