- TXV STUCK CLOSED; CAUSING HIGH PRESSURE SWITCH TO ACTIVATE. - ISSUE W BLOWER RELAY IN AIR HANDLER. - NOT ENOUGH SUPPLY OR RETURN DUCTS FOR THIS SIZE UNIT! 3 TON REQUIRES 1100-1200 CFM, UNIT CURRENTLY HAS 760 CFM!!! - FAILING STARTING COMPONENTS & MAINTENANCE CLEANINGS NEEDED! - SUBPAR FLOOD PROTECTIONS - LEAKING REFRIGERANT @ VALVE CORE. - Based on our findings today, it might be time to think about getting a brand new system.