Hobart hl600 mixer

That school board has no idea what there talking about,Next thing to check is the secondary side of the contactor making sure your not losing a leg there,it sits on the right side of the mixer and is next to the transformer.I would then check the motor stator resistance--Phase a--wire # 5/6 should be 2.7-3.0 ohms,Phase b--wire #3/4 should be 2.7-3.0,Phase c--wire # 1/2 should be 2.7-3.0 nominal resistance of each phase is 2.8 ohms.Will the mixer run with no load in it?code 23 supercedes code 19 so dont worry about that code.Also make sure there are no shorts to ground.To test motor phase to ground-----An open circuit must exist between each motor phase winding and ground although any reading above 500k ohms is ok.Diconnect low side of motor phase wires from t2,t4,and t,6 on tb1 of the sr drive--this is the control board on the right hand side of the mixer as well and tb1 is at the bottom and is marked.measure the resistance between motor leads and an unpainted surface of the frame,if resistance is below 500k the motor is bad.Try these out and let me know. That school board has no idea what there talking about,Next thing to check is the secondary side of the contactor making sure your not losing a leg there,it sits on the right side of the mixer and is next to the transformer.I would then check the motor stator resistance--Phase a--wire # 5/6 should be 2.7-3.0 ohms,Phase b--wire #3/4 should be 2.7-3.0,Phase c--wire # 1/2 should be 2.7-3.0 nominal resistance of each phase is 2.8 ohms.Will the mixer run with no load in it?code 23 supercedes code 19 so dont worry about that code.Also make sure there are no shorts to ground.To test motor phase to ground-----An open circuit must exist between each motor phase winding and ground although any reading above 500k ohms is ok.Diconnect low side of motor phase wires from t2,t4,and t,6 on tb1 of the sr drive--this is the control board on the right hand side of the mixer as well and tb1 is at the bottom and is marked.measure the resistance between motor leads and an unpainted surface of the frame,if resistance is below 500k the motor is bad.Try these out and let me know.

Hey mike,if all your legs are good i think you may have a problem with the sr drive (switched reluctance).Code 19 is an error on phase c,just make sure that leg is o.k.Try switching any 2 leads and see if a different code comes up.code 17 would be phase a--code 18 would be phase b. dont loose track of phase c wire because if a different code comes up it may very well be that wire.Is your circuit breaker to the unit big enough and not old?Is the staff overloading the mixer?We have a blip box we use to tell us if the encoder is in sync with the sr drive and there are 2 types of encoders we use depending on the year of the mixer.If you want to get in more depth you can call me and ill read thru my service manual with you i cant fax it to you i could lose my job.Let me know Hey mike,if all your legs are good i think you may have a problem with the sr drive (switched reluctance).Code 19 is an error on phase c,just make sure that leg is o.k.Try switching any 2 leads and see if a different code comes up.code 17 would be phase a--code 18 would be phase b. dont loose track of phase c wire because if a different code comes up it may very well be that wire.Is your circuit breaker to the unit big enough and not old?Is the staff overloading the mixer?We have a blip box we use to tell us if the encoder is in sync with the sr drive and there are 2 types of encoders we use depending on the year of the mixer.If you want to get in more depth you can call me and ill read thru my service manual with you i cant fax it to you i could lose my job.Let me know