Customer concerned about unit not working properly. Breaker tripping in heat mode. Checked breaker and air handler wiring. Has #8 wire and 50 amp breaker. Heater is 8 kw and call for 50 amp breaker. Breaker is getting warm and tripping unit breaker. Heater amps are 35.2 and unit is cooling properly and drains at this time. Suggest to replace Eaton 50 two pole breaker in main panel. Follow up Monday