Arrived on site found blower motor not running when calling for cooling. Evap coil was frozen. Tested g and found 24v. 120 measured to blower when calling. Powered unit off and turned it back on again. Blower cam on without issue. Switched unit to heating mode in order to Melt the ice. Unit operated in heating mode without issue for 5 mins. Switched unit to cooling once ice had fully melted. Blower and condenser came on without issue and continued to run for 40+mins. Measured refrigerant pressures and found them to be within manufacturer specifications. Advised homeowner I could not reproduce the issue at this time and the issue could either be with the control board or a power surge issue. Offered surge protector to possibly prevent this from happening again. Homeowner declined at this time. Unit in good working order upon departure.