Did a preventative maintenance on a heat pump. The split temp was 20 degrees supply temperature was 95°F in the return or 75°F. Did a amp on the heat pump fan motor it was rated for 2.8 and running at 2.7 and the compressor was in range of the spec sheet. And so where the pressure. Did a amp check on blower motor and that was in the proper range. Filter size 20x20x4 I would recommend replacing the fan motor. Air handler m#CBX27UH-036-230-6-02 s#5811D06374 heat pump m#SL18XP1-036-230A02 s#5817E24244