I have a climate master genesis about 10 years old. When cooling is turned on, the compressor starts and runs for about 2-3 minutes. Then the compressor stops, fan continues to run. Put it in test mode and got FP2 fault code 5.

After checking filter, etc., replaced Thermistor FP2. Problem stayed same.

Used Fluke infrared thermometer to check thermistor temp and shut off--about 50 degrees. Took thermistor off and placed in the fridge to check resistance at specific temp (used Fluke to check temp) all within normal range according to operating manual.

If I jump out thermistor, compressor continues to run. Help! I'm not an HVAC pro, but background in electronics and other electrical equipment. Any suggestions would be appreciated.