I have a Purex Triton (Pentair) MiniMax 400 heater. It has worked perfectly for many years but upon opening the pool this year it failed to light. None of the LEDs is lighting up so I'm assuming it's a power issue. The transformer appears somewhat corroded but more importantly, what I assume is the circuit breaker, which is mounted to the outside of it, appears to be popped and won't reset. I say appears because I've actually never seen a circuit breaker like it before. It's a small, round black button that is spring loaded. I can push it in but it doesn't stay in and there's no resistance (other than the spring) or "clicking in." When I looked on the web for the part (assuming that was the issue), it shows as obsolete or discontinued on several sites. For example, one site's parts diagram says "Minimax Transformer, 1384c - Dual Voltage; Note: Circuit Breaker is No Longer Available."
I am obviously not an electrician but am I likely correct that the problem lies in the transformer, causing the circuit breaker to pop? And if so, do I simply buy the replacement transformer without the circuit breaker?