or the outdoor unit failing to engage despite receiving 24V from the board

frequent tripping of the thermal overload

For field compatibility

which should be torqued to 95 in-lbs for optimal seating

Raypak 008520F Limit Switch or the outdoor unit failingThe Raypak 008520F is a critical safety component designed for professional grade commercial boilers and pool heaters. This 240F Limit Switch acts as a primary fail safe, monitoring discharge water or heat exchanger temperatures to prevent thermal runaway. As a Manual Reset Limit Switch (M R), it requires a technician to physically inspect the system and reset the device after a high limit event, ensuring that the root cause of the overheatingsuch as