I had a problem with the 160 l / hour watermaker on SM#331 which tripped the breaker when it was first put into service. There had been a seal failure problem with the pre-feed pump and I replaced this with no change in the breaker tripping behavior. Sometimes the unit would operate for 30 minutes or so before the breaker tripped. I tried simply replacing the Amel supplied 20 ampere breaker, assuming that it was faulty but the problem persisted. After several e-mails to Amel, they agreed that I should replace the breaker with one rated for 25 amperes. I did this and the unit has operated perfectly for the past 12 months. I have since discovered that at least one other Super Maramu owner has had to make the same modification. I have assumed that the unit must be drawing around 22 amperes in normal operation – around 4.8 kW but I have not metered this.
