Today I performed a cooling tune-up on a three system home all of them gas furnaces one is Goodman one is a mono one is carrier the Amana Services the master downstairs and is under warranty the Goodman Services downstairs common areas and is not under warranty the carrier system Services the upstairs and is not under warranty for the most part everything checks out indoor and out however I did find the value germicidal bulb to be out on one unit and one unit has no UV and the third has the iaq200 which is still in good condition also noticed the carrier system does not have a P-trap on the drain line nor does it have an inline water safety nor does it have a compressor saver kit outdoor like the other two systems do discussed surge protection April air filter upgrades and all of the recommendations with the homeowner however at this time she is not choosing to take care of anything I was unable to replace her filters because she did not have any on site she is ordering more filters an