Question about Generac 100 Amp 120/240-Volt Transfer Switch #RTSN100A3

1 Answer

10kw Generac Guardian not cranking, shows rpm sense loss

After installation, followed installation guide's instructions for manual test. Utility power off. Breakers on Generac panel off. Generator's breaker off. Generator's mode switch set to off. Manually operated transfer switch to down position. Switched generator's mode switch to Manual start ... readout ''cranking, attempt 1'' for a few seconds ... but no cranking whatsoever, whole unit is silent ... then ''RPM Sense Loss'' message.

Verified natural gas pressure is present. Battery's brand new and shows full charge. 12 volts present at lug under red cap by starter. Fuse is good.

Posted by on

  • bobsykora Sep 08, 2009

    The Mode switch has three settings: MANUAL, OFF, and AUTO. The step-by-step installation guide tells me to put it at OFF till utility power is disconnected and manual transfer has been thrown, then switch to MANUAL.

    BTW, when I put the Mode switch to AUTO and disconnect utility power, the readout tells me it's going through a utility disconnect delay, then says it's cranking (it isn't), then gives the same RPM SENSE LOSS error message that results when I go through the manual test.

×

Ad

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

    Sergeant:

    An expert that has over 500 points.

  • Expert
  • 384 Answers

Sounds like Generator mode switch should be "ON".

Posted on Sep 08, 2009

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE:

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

2 Answers

Hi, we have a square d 200amp ckt brker that we want to reset after we take our generator offline. we noticed that there is a black plastic tab that prevents you from resetting it. how can we reset it?...


Do you have a Square D "QO" panel - or a Square D "Homeline" panel (or a different brand panel completely)? If possible, please provide the catalog number of the circuit breaker.

Nearly all circuit breakers that are TRIPPED (handle is at the midpoint between ON and OFF) must be RESET by pushing the handle to the OFF position - then pushed the other way to the ON position. A circuit breaker that is in the OFF position, does not need to be RESET, and need only be pushed to the ON position.

It is advisable to shut off ALL the other circuit breakers in the panel, then turn on the 200 amp breaker. After the 200 amp breaker is on, turn on the largest value (in amps) double pole breakers and finally all the single pole breakers largest values down to 15 amps. This prevents switching one very large load all at once.

Aug 29, 2011 | Square D Qo 200 Amp 40 Circuit Indoor...

1 Answer

Installed a generac 20kw about a year ago, ran fine untill 2 days ago. During a utility outage, generator ran for about 30 minutes and then stopped producing power while still running. All mains were still...


With the engine off, check the exciter brushes and slip rings which supply magnetic power for the alternator winding in the stator. Also, check the motor-to-alternator mechanical coupling. Check the breakers for tripping. To service beyond this point requires a schematic of the alternator, a voltmeter, plus knowledge of what the schematic is telling you. Good luck!

Jul 25, 2010 | Generac Power Systems Generac 5525 20 Kw...

1 Answer

Entering the panel wired to 2 30 amp parallel circuit breakers. Black to copper 260 wolts Red to ground (same as copper ) 260 volts How do I get 130 volts to each breaker?


DO NOT, I REPEAT, DO NOT WIRE YOUR GENERATOR DIRECTLY TO YOUR PANEL!!!!. You may cause the death of a utility worker if the power goes out and your generator it running. Go get a transfer switch and follow instructions carefully. If you do it incorrectly and cause and injury to a utility worker, you can expect to go to jail or pay a fine that will set you back many years. I can see from your question you have no idea what is going with electrical connections or how wiring works. Hire and licensed electrician and avoid trouble for you and others. This is nothing to play around with or try learning on your own. People could die.

Oct 31, 2009 | Coleman Powermate Powermate 5000W...

1 Answer

Have to attach a red cable to a terminal on the starter motor.Howver cannot locate the atarter motor.Generac 8000 generator.Thanks


Some gensets have a reverse generator that actualy rotates the motor until running then switches back and produces power. But the starter could be in the front of the engine looking like a altrnator or some such device. good luck..

Aug 26, 2009 | Hammering

1 Answer

No power output from my generac 5000 power plus.


sounds like you need to "flash the field". This means you've lost you excitation voltage for the generator to produce electricity. In most cases you need to get a 9volt battery and connect it to 2 & 6 inside the generator. They are Blue & Red wires, but they are not the only blue & red ones there. The generator should be running and the battery should only be connected for about 5 seconds. This is very dangerous because of all the high voltage and democrats.

Apr 09, 2009 | Generac 100 Amp 120/240-Volt Transfer...

Not finding what you are looking for?
Generac 100 Amp 120/240-Volt Transfer Switch #RTSN100A3 Logo

4,218 people viewed this question

Ask a Question

Usually answered in minutes!

Top Generac Electrical Supplies Experts

Sheldon Dedek

Level 3 Expert

909 Answers

Bob Janelli

Level 1 Expert

26 Answers

Craig Butler
Craig Butler

Level 3 Expert

1730 Answers

Are you a Generac Electrical Supply Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...