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Wiring diagram 415 volt contactor, overload, 24 volt coil

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6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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Service Expe
  • 1 Answer

SOURCE: I need assistance with swapping out a contactor.

I don’t believe changing the contactor to a double pole contactor will solve this problem. It appears by your description that bugs are being attracted to the contact points on the contactor. Changing to a double pole contactor will not eliminate that problem but only provide another contact point for the bugs to be attracted to. The most effective solution would be to replace the current contactor with a sealed design where the contact points are totally enclosed. Enclosed contactors are completely enclosed protecting it from bugs and dirt. These type of contactors are available in the single pole design so no further wiring modifications are needed. You can consult a professional A/C service company like mine for more information and assistance.

Hope this helps. Let me know if there's anything I can do for you!

Sam, The Service Expert
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Posted on Apr 30, 2009

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  • 252 Answers

SOURCE: Carrier AC Compressor Fan will not turn on.

Bad contactor - replace

Posted on May 07, 2009

bobicehouse
  • 1524 Answers

SOURCE: contactor replacement

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Onmost single-phase compressors with a single-pole contactor, there is a solidbar on one side of the contactor instead of having two contacts. One leg ofpower passes down the bar to the capacitor and to the run winding. It passesthrough the run winding of the compressor and from common back to thecontactor. It lands on the load side of the normally open contact of thecontactor. At off cycle, line voltage will be read from one side of thenormally open contact to the other: Line 1 on the line side and Line 2 on theload side via the windings.
Thecrankcase heater will be attached to the contactor with one leg on the loadside and one on the line side of the normally open contacts. At off cycle itwill have line voltage applied to it and will heat the crankcase. Once thecontactor is energized, both the line and load side of the normally opencontacts become one. Since you cannot feed a load with one line of power, thecrankcase heater will not work again until the contactor opens. This is asimple way to turn the crankcase heater off during the on cycle and to turn iton at the off cycle. Exercise caution when checking this type of setup becausepower is always present on the load side of the contactor.

Posted on May 23, 2009

  • 534 Answers

SOURCE: Contactor not engaging to start condenser unit

I would replace the contactor if you are getting 24 volts to the contactor and it isn't engaging therefore the magneto on the contactor is out and the contactor will need replacement. If you don't have 24 volts at the contactor then the transformer that sends the 24 volts is bad and will need replacing

Dave

Posted on Mar 11, 2010

guru_fixya
  • 944 Answers

SOURCE: I need a wiring diagram

Hi,

This is the only site which provides wiring diagram related to Coleman.

Coleman does not provide any online diagrams...

http://colorcodes.flagsolution.com/colemanwiringcolorcodes/


For 24 volt transformer:
http://www.google.co.in/images?um=1&hl=en&biw=1912&bih=825&tbs=isch:1&aq=f&aqi=&oq=&gs_rfai=&q=coleman%2024%20volt%20transformer%20wiring%20color%20codes

For RBM relay:(Common not specific to Coleman)
http://www.google.co.in/images?um=1&hl=en&biw=1912&bih=825&tbs=isch%3A1&sa=1&q=RBM+relay+wiring+color+codes&aq=f&aqi=&aql=&oq=&gs_rfai=

Hope this can help you.

post a comment for further assistance.
Thank you for using fixya have a nice day:-)

Posted on Sep 01, 2010

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Wiring diagram for sunquest pro 24 tanning bed


I do not have a diagram, but the contactors are really simple. You have 2 power switches on top of contactor and 2 wires going to the coil. There should be 4 larger wires on top, 2 in and 2 out.

If any of the crimp-on wire fasteners are blackened, then have a trained technician to replace the fastener. If bed comes on when pushing down on contactor with a plastic ink pen, then check the timer by turning on the timer and checking the voltage at the Main Relay Coil. If no voltage, then the timer is bad.

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When you are testing the contactor on a coil, you should remove the tstat wires then hook up your voltage meter to the wires then turn on your tstat check the meter to be sure u are getting 24 volts.

If you are getting 24 volts, put wires back in place on contactor then measure voltage across the contactor to see if you are getting 24 volts. If there isnt 24 volts then the contactor coil is bad and needs to be replaced.

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I need to put a 24 volt coil relay in my furanace for an EAC and I'm not sure how to hook it up. I'm guessing the low voltage wires from the thermostat (w & b wire) will go to coil side and...


Electricians don't guess, they test.
Usually 'relays' used for HVAC are called contactors, for some reason.

1) 24Volt wires connect to coil. Make sure contactor coil is rated 24Volts or 24vac
Coil terminals are typically located on side of contactor.
Usually you can see small copper wires from coil that are soldered to these terminals.
Test across terminals with multimeter set to read ohms, and you will get ohm reading of coil.

2) The 120V or 240V wires connect to terminals located on ends -or- on top of contactor.
If there are three terminals, then check these terminals with multimeter.
Push down contactor to simulate the contactor turning on and off.
Hold contactor down and test terminals again.
And compare test results with same test from old contactor being replaced.

3) Open following link to see typical 24V coil contactor with DPST with 2 NO contacts
The contactor shown in diagram is similar to your contactor, except the contactor shown has 4 terminals for 120V or 240V. This is why testing contactor and comparing with old contactor is necessary.
http://waterheatertimer.org/images/ON-delay-timer-diagram2-300.jpg

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Our ruud air conditioner will not go on no fan zero checked the breakers etc, what do i do?


Hello, if the outside unit is not running start at the outside disconnect box and verify if you are getting 240 volts, if you are continue to the contactor coil, check for 24 volts at the contactor coil if there is 24 volts and the contactor does not energize then it must be replaced. If you do not have 24 volts then the low voltage ( thermostat) wiring must be checked out for a short circuit, loose wiring, or the thermostat might be bad. Also, you can check for 24 volts at tjebcontrol board between the r and c terminal if no 24 volts then you have a bad transformer.

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Heil central a/c will not turn on, model is max performance 14 model # HAC442ACK4. checked circuit breakers


Hello, if the outside unit is not running start at the outside disconnect box and verify if you are getting 240 volts, if you are continue to the contactor coil, check for 24 volts at the contactor coil if there is 24 volts and the contactor does not energize then it must be replaced. If you do not have 24 volts then the low voltage ( thermostat) wiring must be checked out for a short circuit, loose wiring, or the thermostat might be bad. Also, you can check for 24 volts at tjebcontrol board between the r and c terminal if no 24 volts then you have a bad transformer.

Apr 27, 2011 | Heating & Cooling

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My ac is blowing out air but it is not cold and the fan outside is not running


Hello, first thing to check is if you are getting voltage at your outside disconnect, you should get 240 volts, if not check for a tripped breaker or a blown fuse. next check power at the contactor coil you should have 240 on the line side of the contactor. If that checks out good check for 24 volts at the side terminals of the contator coil, if you have 24 volts at the coil does not energize than you have a bad contactor coil. If there is no 24 volts at the contactor coil side terminals than either there is a problem with the thermostat or low voltage wiring. and finally if that all checks out good than your capacitor must be replaced.

Apr 25, 2011 | Heating & Cooling

1 Answer

A/C compressor has power to the contactor (220) but will not kick


Check for 24 volts at your contactor coil. If you have 24 volts at your contactor coil, then you should read 220 volts on the other side of the contactor. If you do not read 220 on the other side, then the contactor is failed and needs replaced. If you do not read 24 volts at your contactor coil, then you have to find out where the "break" is. See if you have 24 volts at "common" and "Y" at your outdoor unit. If you do not, the problem is somewhere between your outdoor unit and thermostat. If you have 24 volts at your outdoor unit but not at your contactor, you have a problem somewhere inside your outdoor unit. Using this information, do some more investigating and let us know what you find, we will guide you further from that point. Good Luck! :-)

May 25, 2010 | Goodman CKL60AR60 Air Conditioner

1 Answer

Contactor will not pull in


This could be caused by a couple of different things. First start by taking a voltmeter, and going across the 24 volt connections. You should read 24 volts. If this is not the case then you should ensure the thermostat is calling, and that you have 24 volts at the thermostat. If you have power at R, ensure you also have power at Y. If there is no power, it is most likely your transformer.
If you have 24 volts at the contactor, turn the power to the unit off, remove the 24 volt wires, and using an ohmeter, check the resistance of the contactor coil. (Where you remove the wires from) You should get a measurable reading. OL means the coil is broken, while 0 means the coil is shorted, either way the contactor will need to be replaced. If after taking this reading, all is still good (as far as testing), replace the 24 volt wires, and inspect the contacts to ensure no ants or bugs got in there. I have seen many insects stop a contactor. If you find any bugs, clean out, and you should be fine. REMEMBER that you need to have the power off when you are removing, or physically touching the contactor.
Hope this helps

Mar 29, 2010 | Heating & Cooling

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