No cool main system. Tested system and found the following: evaporator coil is very rusty and corroded and likely to leak.Dual capacitor was bad causing system to not turn on. System’s water safety is code compliant but does not have a backup overflow protection switch. Replaced main level dual capacitor. Tested downstairs system for customer as well. Found weak blower capacitor (15uf). Found rusty, corroded evaporator coil. Found weak dual capacitor (45/5 uf). Found pitted main electrical switch. Replaced capacitor, dual capacitor and main electrical switch for basement system. Systems are cooling at this time.