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  #1  
Old 02-20-2012, 11:38 AM
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Pump Start Relay Question

Anybody familiar with a TECO 220VAC single pole 7.5 HP pump start relay model 130674 and TECO "Ice Cube" relay model GMC-6M?

Rainbird ESP M controller; 7.5 HP 220VAC Single phase Baldor motor.

Everything wired correctly (as far as I know). Turn on breaker & trips master breaker (40AMP) Disconect ice cube from the master valve terminal on the time clock & no line problem.

Swapped controllers; same symptoms.

WTF?

Need pictures? Will provide.
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Old 02-20-2012, 12:11 PM
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Does the Baldor motor run at all without tripping a breaker?
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Old 02-20-2012, 12:18 PM
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Quote:
Originally Posted by Wet_Boots View Post
Does the Baldor motor run at all without tripping a breaker?
Yes it does.
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Old 02-20-2012, 12:23 PM
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sorry, read the post wrong

Last edited by 1idejim; 02-20-2012 at 12:28 PM.
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Old 02-20-2012, 12:34 PM
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Maybe there are burned contacts on the relay. I can't imagine anything in a power relay that itself would present a short, although you'd check it with a meter anyway. You also want might current readings on the motor.
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Old 02-20-2012, 12:50 PM
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Did that, all is nominal.

Only time it trips the breaker is when I hook up to the MV block on the controller. Checked voltage from the transformer 26v (+ -) steady. Checked ground, checked common, checked line/load, amperage; double checked wiring everything OK.

Possibly a bad ice cube relay, will disconnect & replace the ice cube from the relay and see what happens.

Would like to call the manufacturer.
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  #7  
Old 02-20-2012, 12:58 PM
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Why not feed the power relay directly from a separate 24vac wallwart?
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  #8  
Old 02-20-2012, 01:02 PM
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Quote:
Originally Posted by jvanvliet View Post
Did that, all is nominal.

Only time it trips the breaker is when I hook up to the MV block on the controller. Checked voltage from the transformer 26v (+ -) steady. Checked ground, checked common, checked line/load, amperage; double checked wiring everything OK.

Possibly a bad ice cube relay, will disconnect & replace the ice cube from the relay and see what happens.

Would like to call the manufacturer.
i had a similar situation with a goldline aqua-logic complete controller for a saltwater swimming pool. all wiring was good and all measurements on line. called the manufacturer and got the runaround from the troubleshooter. i must of called the troubleshooting line a dozen times and was on hold talking to the secretary, just bsing when she asked if i had run my finger under the backside of the relay when it was off? there was a titt that when open could be felt and was flush to the surface when closed. this relay was stuck mid span allowing it to arc and trip the breaker. i sent her flowers

post some pics

Last edited by 1idejim; 02-20-2012 at 01:07 PM.
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  #9  
Old 02-20-2012, 01:09 PM
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Those kind of flaws are what I expect would be caught out before a device ever got official approvals. Then again, I installed any number of Febco 805Y DCVAs, and we know how they've been doing.

Anyway, I think the icecube relay would be incapable of tripping a pump's breaker, no matter what.
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Old 02-20-2012, 01:18 PM
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Quote:
Originally Posted by Wet_Boots View Post
Those kind of flaws are what I expect would be caught out before a device ever got official approvals. Then again, I installed any number of Febco 805Y DCVAs, and we know how they've been doing.

Anyway, I think the icecube relay would be incapable of tripping a pump's breaker, no matter what.
that's why i'd like to see some pics
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