Customer had a fridge tripping a dual function, 20 amp breaker in the CH panel. Replace the dual function breaker and felt that the wires were loose in the breaker which definitely could be the root of the problem. Also replaced the fridge plug and checked voltage and make sure everything was good and everything checked out perfect. Explain to customer that if it keeps tripping the dual function breaker that has been replaced in this brand new and covered under warranty that there would be an issue with the fridge and we need to contact a appliance guy