Pentair 461105 PCBA MT/MET with RS485 Assembly

What This Part Is Used For
The Pentair 461105 PCBA MT/MET with RS485 Assembly is used in compatible MasterTemp and Max-E-Therm heater systems. It manages internal heater communication and RS485 connectivity.

Why This Part Matters
Heater ignition failures or communication errors with automation can stem from a faulty PCBA. Replacing the assembly restores heater control and remote integration. It ensures proper startup, monitoring, and diagnostics.

Key Features and Specifications

• Manufacturer part number: 461105
• PCBA for MasterTemp and Max-E-Therm
• Includes RS485 communication capability
• Controls heater operation logic
• OEM replacement assembly

Installation and Fitment Guidance
Disconnect power and gas supply before servicing the heater. Follow heater service manual procedures during installation. Confirm by manufacturer part number before ordering.

About the Pentair Brand
Pentair MasterTemp and Max-E-Therm heaters are widely installed across residential pools. Their electronics manage ignition, temperature control, and safety systems. OEM boards ensure compatibility with automation platforms. Pentair heater components are trusted in the field.

Common Service Context
Replaced when heaters fail to ignite or lose automation communication. Often installed during major heater repairs.