HVAC tune up in Liburn. Tested operation of 2 systems. Both systems heating operation normal. Discovered downstairs compressor and outdoor fan running at high amps and with weak secondary controller and burnt and pitted main electrical switch. Discovered upstairs system compressor running at high amps and burnt and pitted main electrical switch. Both coils are very dirty and need to be cleaned. Recommend maintenance membership to clean coils, replacement of secondary controller and main electrical switches, and installing compressor savers to reduce stress on compressors.