I finally get a good wash day after about 6 weeks of rain today. I get a phone call this AM and the guy tells me my one of my three blowers is not working. When I get there I try turning the turbine and it seems seized so I replace the motor. I didn't check the overload before I replaced the motor because I figured if it wasn't spinning freely it needed replaced. Now with the new motor installed it starts up for a few seconds then trips the overload. I tried increasing the amperage on the overload with no success. Tomorrow I was going to swap out the overload from one of the motors that was working. I am assuming that I can take amp readings but not sure how many amps the motors should be pulling. It it on a JCC Water Wizard 1.0 and the overload is a sprecher schuh CEP7-M45
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Overload tripping on onboard dryer
- Thread starter Buzzie8
- Start date
car washing systems inc
Member
Look on the motor plate it will tell you the amps
First thing I would do is double check your motor wiring and make sure you wired the motor for the correct voltage and have a good connection on all 3 phases.
Second thing I would do is check voltage from phase to phase across all 3 phases on the bottom of the motor starter to make sure you are not missing a phase. If you are missing a phase it will trip the overloads. I have seen bad overloads or contactors lose a phase and cause this.
Third, Take an amp reading with a clamp on amp meter on each leg. They should all be equal or very close to it. No reading should be more than the full load amps listed on the motor name plate.
Second thing I would do is check voltage from phase to phase across all 3 phases on the bottom of the motor starter to make sure you are not missing a phase. If you are missing a phase it will trip the overloads. I have seen bad overloads or contactors lose a phase and cause this.
Third, Take an amp reading with a clamp on amp meter on each leg. They should all be equal or very close to it. No reading should be more than the full load amps listed on the motor name plate.
