i-TIG 201 power switch problems

[BillN]

I've had my i-TIG 201 I purchased from Everlast about two weeks now. After using it a few days (probably less than 4 hours welding time at 18 - 25 amps), the switch on back of the unit would not turn it off. I've only used this unit in the 220 volt mode (no use in the 120 volt mode). So I have been turning the unit on and off by plugging and unplugging the wall plug. It turns out that the on/off "switch" is actually a circuit breaker. I received a new switch/circuit breaker from Everlast a couple days ago (under warranty). After I installed it, it worked fine - for about 6 on/off cycles. Same problem as before - cannot turn unit off with switch, so have to use the wall plug. I don't see any sense in installing another switch/circuit breaker of the same brand and model. I'm wondering if Everlast has other i-TIG 201 customers having this trouble and if they are working on a solution. I'm also thinking of retrofitting another circuit breaker of better quality. It looks like just a typical 30 amp circuit breaker. I will say, though, apart from the switch - I am (so far) very happy with my new i-TIG 201.