Raypak 53B/55A Pressure Switch Tube (003543F)

Raypak 53B/55A Pressure Switch Tube is a replacement heater parts component intended for use when servicing compatible Raypak pool and spa heater models. This part is best used when the existing component is worn, damaged, missing, corroded, or no longer performing its role in the heater assembly. Because Raypak model families can include similar-looking parts with important differences in size, fuel type, ignition style, rating, or production range, the original part number 003543F should be checked before ordering.

For repair work involving 53B/55A Pressure Switch Tube, this part addresses pressure-sensing and safety interlock service, helping the heater confirm proper water flow before allowing a heating cycle. It is suited for targeted maintenance where the technician has already identified the failed component and needs a direct replacement rather than a universal substitute. Check the old part, model plate, and heater manual to confirm fit before starting the repair.

• Designed for compatible Raypak heater service applications using part number 003543F.
• Helps support helping the heater confirm proper water flow before allowing a heating cycle.
• Useful for replacing a worn, damaged, corroded, or missing original heater component.
• Recommended for model-specific repairs where exact fitment is more important than a generic substitute.
• Confirm heater model, fuel type, ignition style, voltage, and production details where applicable before installation.