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Rdt-cfnc-0100a kohler 12res generator keeps starting by itself, suspect it is the rdt-cfnc-0100a transfer switch problem.

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Disconnect the control wires and see if it still does it

Posted on Nov 27, 2013


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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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SOURCE: Electrical cable size requirement

This is an answer to your question only. The safest thing to do is hire an electrician to do it. There may be factors you don't recgonize that a skilled eye would pick up on.

The proper size wire is #4 copper or #3 Aluminum. THHN is the most common and most versatile type in conduit. a #6 ground wire is ok. Stranded pulls a lot easier than solid and do yourself a favor and buy some wire pulling lubricant just in case.
Make sure to obey all manufacturer's instructions. If you use aluminum make sure to place anti-oxidation compound or Nolox on your lugs in the panel. Please write back with anymore questions.

Posted on Apr 02, 2009

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SOURCE: kohler confidant 4 generator service manual and wiring diagram

First thing is to check oil level as low oil pressure will shut it down.

Posted on Aug 11, 2009

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SOURCE: Kohler 12res AC breaker flipping with no error listed

wat size c/breaker
6600 divide 240 = amp
rule of thumb

Posted on Sep 06, 2009

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SOURCE: I have a Kohler 12RES, 12.5kw genset. Less than a

check connections on speedsensor or take down rpms must be a screw or bolt on de fuelpump

Posted on Feb 10, 2010

  • 1 Answer

SOURCE: electrical wiring for kohler engine

I need a diagram of the electrical system for a cv15s kohler engine that is mounted on a lg 155 John Deere riding mower. The engine will not turn over, even though I have a new battery. The last time I mowed the engine would barely turn over, now it will do nothing but make aquiet click when I turn the key with the brake compressed. Any ideas?

Posted on Jun 28, 2010

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1 Answer

8.5 kohler generator battery dies often

Check the battery charger whether an external one is installed or the optional one ion the transfer switch. Measure the voltage on the battery it should be at least 13.8V if it is only 12V then the charger is suspect. Also if it is an external charger plugged into a receptacle make sure that the 120V receptacle is hot (GFI's) tend to trip in a storm

Sep 18, 2013 | Kohler 12 kW Emergency Power System -...

1 Answer

Kohler 12RES only starts on second try

Check gas pressure. Oc is over crank. Means tried to start but did not.

Nov 25, 2012 | Kohler 12 kW Emergency Power System -...

1 Answer

Kohler automatic transfer switch RDT CFNA 0100B. I can set it to exercise and it will do so for several weeks then it forgets. No fault shown.

Product manual does not have troubleshoot section.
The operation might be normal, and within expected parameters, or it might have a glitch.
Suggest you contact Kohler Power directly:

Sep 29, 2012 | Kohler 100-Amp Automatic Transfer Switch ...

1 Answer

My gen starts and runs for 1 min or so then dies restarts then dies again and again. if i start it under load ( turn on air con) it will run for 10 min then die allen

Is there a fault?? All UL listed generators including Kohler are required to lockout on a fault on shut down. This really sounds like a problem with your 2-wire auto start connection between your automatic transfer switch and genset. RDT model automatic transfer switch it is the 2 middle wires on the green connector and terminals 3&4 in the generator. close to run and open to shut down. Any open at any time will cause the unit to shut down. The 12 will shut down instantly upon an open because your 5 minute cool down is built into the transfer switch.

Jun 27, 2011 | Kohler 12 kW Emergency Power System -...

1 Answer

Will not issue a start signal all of a sudden. How to test to see if it is the switch or the gen. panel

I have a Kohler 12RESM1 whole-house generator with a 200AMP RDT, MPAC 500 Automatic transfer switch (ATS) in my home. The system was installed in 2006 and has been working great since. Several weeks ago I began noticing that the weekly tests weren't occurring on schedule and that the generator would initiate a starting crank for a couple seconds several time a day. The false starts began occurring more frequently as time progressed. (BE very careful!! You will be killed if you are not careful!! ) In order to isolate the trouble between the ATS and the generator, I disconnected the 2 start circuit wires from the ATS controller (2 wires on green connector). The problem stopped, which led me to believe the problem was the ATS controller board. The controller board in my ATS is a GM35950. After removing the board (BE very careful!! You will be killed if you are not careful!! ) and doing a little troubleshooting, I determined the trouble was the set of .47F 5V super-capacitors. These are the 2 black oval-shaped cans behind the relays that appear hot-glued together. I ordered 2 new caps from Digi-key (approx. $4.00 ea). The P/N is PB-5R0V474-R. Replacing the supercaps cured the problem. Don't be fooled, these capacitors are .47 farads, not .47 microfarads, thus the reason they're called Supercaps. They function similar to a battery in this application. Oh by the way, I ordered a couple extra Caps. They have a 1000 hour life expectancy, so I suspect I'll need to replace them again in 6-7 years. Good Luck, I wouldn't advise attempting this job unless you have the proper soldering equipment and are experienced with electronic repair. There's a company that will repair the board for $170. Try googling "Kohler GM35950 repair".

Jan 30, 2011 | Kohler 200-Amp Automatic Transfer Switch...

2 Answers

I have a Kohler 12RESM1 propane generator with oc/uu code

U need to make sure that the relay driving ur auto start stay closed all thru the crank cycle.

Feb 04, 2010 | Kohler 12 kW Emergency Power System -...

1 Answer

Kohler 12res AC breaker flipping with no error listed

wat size c/breaker
6600 divide 240 = amp
rule of thumb

Aug 16, 2009 | Kohler 12 kW Emergency Power System -...

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