Our RESSAC HVAC technician responded to an emergency request for a coffee shop too warm and thermostat blank in Torrance, California. He found the 10 ton ICP unit off with wiring disconnected inside. He reconnected the wiring and traced problem to a lack of 24 volts going to the VFD controller. VFD board will need to be replaced. Left blower motor on for airflow to the store, quoting needed repairs to the customer.
