Not draining. Voltage on pump, took pump apart and cleared. Still seized after. Needs new pump. Controls are not letting me go into test and diagnose mode, could be locked out from pressure switch issue. Will not know until new pump is installed, may have more issues OBK430
Thermostat wires had a neck in it traps down the issue fixed. The issue. System is working properly.
I scheduled a service call for the customer's non-working thermostat.