Arrived at location, diagnosed faulty, circuit board located in the air handler with a zone panel that also controls the heat which comes from a hot water boiler with two zones. Also building contractor attempted to install Honeywell 10 thermostat which were incorrectly wired as a first step for repair will start with replacing The circuit board located in the air handler model number F4FP036H06T2AA Serial number A0B8658057 Also, system will have to be rewired due to contractor miss wiring the system approximately three hours of work due to figuring out the wiring of the systems advised homeowner due to the age and the refrigerant of the system, which is r22 for a replacement which he declined, the above mention work is just a starting point there may be further issues which may arise after work is completed due to the fact that the system got flooded with water from the first floor View visual findings from this job here - https://visionshare.xoi.io/?id=XA-A243-CF16F7A3ED7044C1A29892