What is a Thermal Circuit Breaker?
A thermal circuit breaker works like a fuse, but can be reset. There is nothing to replace inside the thermal circuit breaker. Never try to pry it open. A white plastic tab will pop out when it exceeds its current limit, cutting AC power from the amplifier. To reset the circuit breaker, push the white tab back in. If you suspect you have a bad Thermal Circuit Breaker replace it. Never attempt to fix it!