Pressure Switch with Siphon Loop Kit for JXi/JXiQ 200/260/400 (R0457001)
Ensure safe heater ignition with the Jandy R0457001 pressure switch and siphon loop kit for JXi and JXiQ heaters. This switch verifies adequate water flow before allowing the burner to fire, preventing dry-fire damage to the heat exchanger.
Water Flow Safety Switch for Jandy JXi/JXiQ Heaters
The Jandy R0457001 Pressure Switch with Siphon Loop Kit is a safety device that monitors water flow through the heater before and during burner operation. The pressure switch verifies that adequate water is flowing through the heat exchanger before allowing the gas valve to open and the burner to ignite. If water flow drops below the safe threshold, the switch immediately shuts down the burner to prevent dry-fire damage to the expensive copper heat exchanger.
Key Features
- Flow Verification: Confirms adequate water pressure before permitting burner ignition for safe heater operation
- Siphon Loop Included: Kit includes the siphon loop tubing assembly that prevents water from reaching and damaging the pressure switch diaphragm
- Dry-Fire Protection: Immediately shuts off the gas valve if water flow drops below the safe operating level
- OEM Replacement: Direct factory replacement for worn, corroded, or malfunctioning pressure switches
Compatibility
Fits Jandy JXi and JXiQ gas-fired pool and spa heaters in 200, 260, and 400 models. Part number R0457001. A faulty pressure switch is one of the most common causes of heater ignition failure. If your heater displays a flow-related error code, this switch is the first component to inspect and replace.
