Complete 2 system furnace repair and preventative maintenance check. Checked filters and both are clean and clear of debris. Ran static pressure tests on both systems. Pressure does not exceed system max ratings. Tested all electrical and mechanical components and all readings are nominal. Found both outdoor units without compressor saver kits, suggesting compressor savers. Found crawl space heat pump without a p-trap. Notifying customers that they are not up to code in this area of their system. Uv lights are 2 years old, recommending new 2 year bulbs.