5 y.o Client called us out today to look at issue with cooling turning on when calling for heat. Client states the heat will only turn on in auxiliary mode. Upon inspection found system was not a heat pump. Went into settings for thermostat and found that settings had been changed as if system was a heat pump. Inputted proper settings and system is now acting accordingly. Cycled cooling. System is producing a 16 to 17° split. Inspected condenser, secondary motor control is good. Hooked up refrigerant gauges and found pressures to be in spec. No hard start kit present. Component recommended after year five per manufacturer. Condenser coils are fairly clean. Replaced filter 14 x 25. Thank you for trusting Thompson with your heating, cooling and plumbing needs.