Enhanced Ignition Reliability: Replaces mechanical components with a United Technology control module for superior spark ignition and flame sensing

For field technicians servicing domestic or commercial hydronic systems

meaning the sensor is open

Whether you are addressing a furnace leaking water or a 311213-403 replacement

and Normally Closed (NC) posts

Laars Heating Systems R0457503 Ignitor Els PW 29614 Enhanced Ignition Reliability: Replaces mechanicalThe Laars R0457503 HI E2 heater ignitor is a direct replacement component designed for reliable ignition performance in Laars HI E2 pool and spa heaters. This Laars HI E2 ignitor ensures consistent spark generation for proper burner ignition, helping maintain efficient heater operation and minimizing downtime in service applications. Built to OEM specifications, this pool heater ignitor replacement is engineered for durability under high temperature