Pentair Tube Sheet Coil Assembly Replacement Kit | MasterTemp & Max-E-Therm 400 | 77707-0234 Spine Boards To stop foaming problems caused

To stop foaming problems caused by algaecides it is best to turn off water features and spa jets to allow foam to settle

inspect the inlet fitting adapter threads and seating surfaces for chemical scale buildup — calcium deposits from chlorine tablets are common and can prevent a proper seal

Air intrusion issues are frequently caused by multiple small failures acting in combination — addressing them in a single service visit avoids repeat disassembly

No electronic controls

8 hours: 60

Pentair Tube Sheet Coil Assembly Replacement Kit | MasterTemp & Max-E-Therm 400 | 77707-0234 Spine Boards To stop foaming problems causedThe Pentair Tube Sheet Coil Assembly Replacement Kit (77707 0234) is the replacement heat exchanger assembly for the Pentair MasterTemp 400 and Pentair Sta Rite Max E Therm 400 pool and spa heaters. IMPORTANT: HEATER COMPONENT PROFESSIONAL SERVICE REQUIRED Gas and electrical heater components must be serviced by a licensed pool professional or qualified HVAC technician. Do not attempt to service gas or high voltage components without proper