Performed a one system maintenance checking heating. Checked all electrical, mechanical and safety components. Checked amp draws and capacitor. Equipment is working properly at this time. I did find that the zone board that was installed is the improper zone board for a heat pump. Zone board will have to be replaced, also found where there is a big gap on the plenum and needs to be sealed. Emailed estimate to realtor and homeowner. Realtor approved replacement of zone board and sealing system. Zone board will be ordered in the morning from standard. Will need to reschedule to replace zone board and mastic seal system.