Does this C2550-0736 have an internal High Limit and Temp Sensor?
Hydroquip Flo Thru Heater 5.5Kw 2"X15", 180O P/S Tap (Advanced Spa) | C2550-0736 (46-555-2210)Therm Products Spa Heaters
I am replacing a C2550-0736 from 1998 and it has an external pressure switch and what looks like an internal High Limit and temp sensor (4 wire) does this model have the same internal sensor with 4 wires to the control unit?