I was called out to Winston‘s house for a heating issue. Winston has lived here for 4 years when the house was built so we performed a thorough evaluation. During the evaluation we discovered the zone board is likely intermittent ply working causing the heating issue, the flood protection needs updating, the zoning on the system is a poor application because it is single stage, the zoning is missing its bypass, transformer, and DATS. Today I rewired the system so the main floor thermostat will control everything and the zoning is disabled.