1991 Jaguar Sovereign blower motor malfunction

I have a 1991 jaguar sovereign 180k with automatic transmission it does have a rear main seal leak but the problem today:the blow motors arent producing any output you can hear them switch when you change the position but at no speed can you feel air. The sensors and ecu seem to have proper voltage and the relays checked out good would they coolant temp sensor stop both blower motors to stop functioning or what? What would cause no response from either side? One day I came outside and I had no air. All fluid levels are good, the ac has pressure, and systems are sealed