Hello, the circulator pump stopped working and was defective. After months of waiting, we got the replacement pump from the warranty, an electrician hooked it up today, verifying a few details with a Caldera technician and the hot tub does not work. The message on the hot tub says "no waterflow detected, check filters, reset circuit breaker, if that doesn't work call service." The heater does not go on. Nothing goes on at all including heater or salt system. Any ideas?