System TA2F hp 6 is dirty from being in proximity to dryer vent also appears to be low on 410a 1/6 hp condenser motor amps are high 1.2/1.3. System is 12 years old with it also dealing with the additional stress of being under commercial dryer vents . Recommend getting estimate to replace. Hp5 will need new fan and fan blade Hp4 is fully operational at this time Mini split 1 and 2 condenser units working good at this time. Hp 2 has no low voltage, wired in condensing unIt has corroded wires. Tech snipped wire and made fresh connections to help diagnose issue later .