Performed 3 system heating maintenance. Checked amps, capacitors, filter, electrical, refrigerant, cleanliness, drains, and safeties. Systems are performing to manufacture specifications. Recommendations 1. D/s system has a weak capacitor on the compressor side 40/45. With this reading, I can not guarantee that the system will continue starting. 2. Both systems are missing water safety switches. It is highly recommended to have safety against potential water damage.