I have a Honda generator model EM3500X with auto idle. The auto idle solenoid does not work when you throw the switch to auto. Switch is good, replaced the solenoid, still does not work. Any ideas? Generator runs fine at full speed and puts out 120/240 volt and 12V DC

Hi. If the ignition switch and the wiring from the ignition switch to the starter are good. Then I would look at the starter solenoid. The solenoid is normally open and only closes when the ignition switch is turned to the start position. Remove the "Trigger" wire from the starter, reattach the battery cables and use a test light to confirm. Good luck.

There is something wrong with the auto load sensing switch which is part of the generator. That is the sensor that detects when current load from the generator drops as in when you strike an arc or turn on a power tool and cranks the throttle to full power. It is obviously working on manual because the manual switch is cranking the revs up so the solenoid that operates the throttle is ok. My advice is to take it to a service centre that deals in welder/generator sets as you are playing with dangerous voltages and may possibly damage the machine by tinkering with it or fry yourself (nasty)

if your engine shutting down, then your auto throttle is working.
when you hit the switch watch the throttle arm move on the carburetor to the idle position,if so you may have to clean the carburetor jet and fuel nozzle ports.possibly this occurs when unit has been stored for quite some time.once jets are cleaned it should maintain idle.

I have a EB-5000 model B 50 Honda generator the high idle works but can't get it to idle down, I change the switch because it was broke, I looked all springs are there, when I put my finger on the governor rod and pull it back idles down, any suggestions

You most likely have a problem with the Automatic Idle control circuit. I suspect the controller as the source of the problem but it can be the Rotary Solenoid (Servo) that is open. Try turning off the automatic idle control switch and see if the generator runs at normal speed. If it does then you can troubleshoot the solenoid by disconnecting the wires and applying battery power. Reverse the power connections on the battery and see if it drives the opposite way. Reverse them again and it should again drive in the opposite direction. If it moves... the problem is the most likely the controller. If you pass your model number I can pass you a sournce for parts.
I am guessing this is an S-10000 model at the moment.

Thanks,
Kelly

I do not think that your generator has a voltage regulator. The solenoid is for idle only when there is no demand (power being used). You can verify this by examing the governor spring /tension adjuster on the engine. Idle control switch on panel and the assembly board control the solenoid. When the assembly board fails generally the generator will function the same however there will be no idle. I have checked with Dewalt and parts are available however expensive. If idle is the only problem you may consider ignoring issue. If there is another problem with gen. please email.

Hi. There are 2 things that control the Auto Throttle and that is the idle control valve (Connected with black and yellow wires) and the Auto Throttle Unit.

Start Generator
Check for 12VDC on the Yellow wire of the idle control valve. Yellow is positive to any good Chassis ground. If you don't have 12VDC then either the Auto Throttle switch is bad or the Auto Throttle Unit iself.

You can gain access to the Auto throttle switch and again check for 12VDC to Ground on both sides of the switch with the switch on. (It may read as high as 13.8 engine running) If you don't get 12 - 13.8 VDC the the Auto throttle control unit is bad

If you have 12VDC to the Idle control Valve and it does not work perform a resistance check across the coil of the Idle control Valve (both wires disconnected Engine off) Black to yellow should read 3 to 4 Ohms If you have no resistance then the coil in the Idle control Valve is bad.

If you need more help just respond here

Kelly

there is some problem in your AMF/ATS pannel

Is this a new device for you or have you used it in the past?

Generic comments follow:

In my experience, there is a switch that ya turn off to start the device and allow it to warm up. Following this short period, ya turn this switch to the on position and a governor takes over - slows the engine to an idle until it sees a load at which time it runs the engine speed up. In the off position, the generator part of this combo is turned off.

In my experience, the protection devices on small generators are auto reset.

Let me know if this works for you.

thanks

a

This sounds like the idle control solenoid has become misadjusted. To check that this is the case, locate the throttle lever and follow it back towards the governor arm until you find the solenoid. Start the generator and switch on the idle control while watching the governor arm where it passes near the solenoid, if the arm snaps back and forth you probably have a bad adjustment. To readjust the solenoid loosen the jam nut on the core of the solenoid just enough that you can turn the core by the square bit on the end. Adjust the core 1/4 turn or so at a time until the governor arm stays in position when the idle control is on, then turn idle control off and make sure that the governor arm goes back to the full throttle position. You may have to fiddle with the adjustment a little until you find the right spot. Tighten the jam nut back down and you're good to go.

Carl