Assurance 1 of 2 York 4 ton heat pump 5 kw electric heat Air handler blower meets manufacturer specifications duct fresh evaporator coil added small drain pan treatment flushed drain line with green clean and wet dry vac changed 20*20*1 filter Recommend customer buy and use AirNow provided filter. Static pressure.36 temperature differential 45 degrees in heat with 5 kw heat strip running changed yearly uv light bulb Condenser all motor amps meet manufacturer specifications refrigerant level meet manufacturer specifications shampooed condenser coil start assembly in great shape Please do a google review today Thanks so much for your business and being the best part of AirNow Jesse Piper Yearly uv light bulb small drain pan treatment