Pentair 42002-0024S Stack Flue Sensor - Pool Heater Part
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- $174.99
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The Pentair Stack Flue Sensor (42002-0024S) is a genuine OEM replacement designed for MasterTemp® and Max-E-Therm® pool and spa heater electrical systems. It monitors flue gas temperature and feeds that data to the heater's control board, helping ensure proper combustion control and safety shut-down if temperatures exceed safe limits. Installed on the exhaust elbow, this sensor is a common fix for heaters displaying E05 or E06 error codes. Built to withstand the thermal cycling and harsh conditions inside a heater's flue, it restores safe, reliable operation quickly.
- Genuine Pentair/Sta-Rite OEM replacement sensor
- Compatible with MasterTemp and Max-E-Therm heater electrical systems
- Monitors flue temperature to support safe combustion and automatic shut-down
- Resolves common E05/E06 stack flue error codes
- Durable construction rated for continuous thermal cycling
