hello,
i recently replaced an old failed condensing unit with the same type, on starting the unit 230v it tripped the 16a b type breaker, i checked the start amps and it pulled 54a then ran at 9.4a (max run 11.5a on the unit plate) i advised the customer that a c type 20a breaker was required, the customer got an electrician out who said the breaker was ok for the appliction and the fault lay with my unit, was i right ? i went back today and checked it over again all ok except the breaker trips on 50% of starts.

please advise

thanks