Pentair Control Board with RS485, for MasterTemp/Max-E-Therm Heaters | 461105 Round Fire Pit Accessories It appears in filter assemblies

It appears in filter assemblies that route water from the pump wet end through the DE grid and back via the return lines

cord connections can deteriorate over time

Pentair manufactures automatic pool cleaners and debris management accessories

easier-to-handle profile than solid covers

or a small sensing tube is cracked

Pentair Control Board with RS485, for MasterTemp/Max-E-Therm Heaters | 461105 Round Fire Pit Accessories It appears in filter assembliesWhat 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