Pentair
Mastertemp water pressure switch 42001-0060S
Pickup currently unavailable at Marathon FL
Product Description
Genuine Pentair 42001-0060S Water Pressure Switch Replacement for MasterTemp & Max-E-Therm Heaters
Ensure the safe and efficient operation of your pool or spa heater with the genuine OEM Pentair 42001-0060S Water Pressure Switch. This essential safety component is universally compatible with all Pentair MasterTemp and Sta-Rite Max-E-Therm heaters (including 125, 250, 300, 400 BTU models). The pressure switch verifies that adequate water flow is present before allowing the ignition sequence to begin, protecting the heat exchanger from overheating damage. A faulty switch often results in a "Service Heater," "SF," or "FLO" error code. This durable replacement part restores proper function and peace of mind to your pool heating system.
Key Features
- Essential Safety & Flow Detection: Acts as a vital safety interlock, ensuring sufficient water flow through the heater before activating the gas valve and ignition system.
- Wide Compatibility: A genuine replacement part compatible with most Pentair MasterTemp and Sta-Rite Max-E-Therm heaters (all BTU models, both natural gas and propane versions).
- Durable Construction: Built with rugged materials designed to withstand pool and spa water environments for reliable, long-lasting performance.
- OEM Quality: A genuine factory-authorized Pentair/Zodiac replacement part engineered for an exact fit and dependable function.
- Diagnostic Solution: A common replacement item when the heater displays "SF" (Service Flow), "FLO" (Flow), or general heater error codes related to water circulation.
- Easy Installation: Features a standard thread-mount design and electrical spade connectors for quick and hassle-free replacement, suitable for maintenance professionals and DIY users.
- Prevents Dry Firing: Crucial for preventing "dry firing" or overheating events that can cause catastrophic failure to the heater's heat exchanger.
Specifications
Warnings and Disclaimers
- Electrical & Gas Hazard: **ALWAYS** disconnect all power and gas to the heater before servicing.
- Do Not Bypass: Never tamper with this critical safety device. Bypassing prevents dry-fire protection.
- Pressure Hazard: Relieve water pressure before removal to protect the control board from water damage.
- Freezing: Protect unit from freezing; frozen water can burst the switch diaphragm.
- Disclaimer: Professional installation is required. A failed switch often indicates a separate flow problem that must be addressed first.
Application & Pro-Tips
- Error Code E01: This switch is the most common cause of the "E01 Flow Error" display.
- Multimeter Test: With pump OFF, switch should be Open. With pump ON (good flow), switch should be Closed (continuity).
- Thread Sealant: Use pipe thread sealant or PTFE tape on threads for a leak-proof fit.
- Flow Check: Always check that the pump basket and filter are clean and that water level is adequate before concluding the switch is faulty.
