I performed a 2 system heating maintenance. Systems are gas. I checked amps, capacitors, filters, electrical, cleanliness, drains, duct work, and safeties. Systems are both heating but I have some concerns with the downstairs system. Recommended repairs Downstairs 1. Blower wheel has dust build up. This causes the motor to have to work harder to perform its job. 2. The control board has hot spots at some of the resistors. This has caused burning on the board and may short out. 3. Emergency drain pan has rusting on the bottom side of the pan. This means the pan is compromised and may leak on the attic floor. 4. System does not have enough return. This is putting additional wear on the evaporator coil, heat exchanger, blower motor, and compressor. This will cause a major issue to happen sooner. Both systems 5. I recommend drain treatment to prepare the drain for cooling season. Deposits become hardened through the heating months. This results in clogged drain lines.