Replaced solenoid to hoppers. Took it apart down to shear pin. Not I'm stuck, Wondering if its the Burrs that need replaced, but how do get the rotor out?
You should call your vendor for service. Especially if this equipment is on loan.
*** The following is for information only. All repairs should be performed by a qualified tech.***
Okay, I'm NOT going to ask how you turn the burrs.
* The starter capacitor is bad or disconnected. It's the bulge on the top of the motor.
* There usually a schematic on the back plate or panel.
* Go to bunn.com to download the Bunn manual which has the wiring diagram on the back pages. This should be a FREE download. AVOID using the word "manual" as it will re-direct you to scam sites that charge for free stuff.
* I know following the wires is a bit tricky.. Especially on the G9-2 with everything doubled. Take your time or seek help from a tech or your vendor.
* The capacitor is round and usually attached to the motor like a 'hump' on the side or near the top. If you didn't take it apart then one of the wires in the switching side may be miss wired or loose. Check both for loose and correct wired. Careful around the capacitor as it may still have a charge!
* The capacitor is used to kick start the motor with it's heavy burr plates. Oh, and if your still having problems with low power. Check the motor for burnt smell as you may have overheated and fried the motor. They usually have thermal resets, but if you kept forcing the reset to keep grinding then the motor is defiantly burnt out.
Aloha, ukeboy57
PS. Removing the rotor can be tricky. I did have one with a bolt ground up between the two plates. Hammer time! Not fun. Try a large gear puller but you really have to be careful and not damage the shaft. Check the manual to make sure you have all the parts assembled right. There is a 'button' that goes under the adjustment screw. Looks like a nickle with a dent in it. Also adjusting the burrs too far out will grind metal (from the case) or grind the burrs if it's too far in. Many try to grind stuff to "Espresso" fine grind to get more flavor from the brew but this just shortens the life of the burr plates and overheat the motor which is not rated for this fine a grind. (use a G3 or espresso grinder for this purpose.)
SOURCE: I have an 10 year
You will need a manual that has all the instructions for your machine, as this is too long a subject to answer here. The manual for your machine can be found at: http://www.bunn.com/pages/techdocs/manuals/grind.html
SOURCE: replacing hopper after cleaning
The hopper has two slots in the bottom that aligns with two black tabs in the base. Rotate the tab ring in the base counterclockwise and then install the hopper.
SOURCE: Grinder setting stops at drip. Can't turn further to espresso.
Another suggestion is while the grinder is off, turn it up side down and rotate the bean hopper from coarse to fine a couple of times. This will clean out grounds that have gotten into the threads and it will prevent the bean hopper from not turning to a finer grind.
If you start to get a clog in your grinder, open it up to a coarse
grind for a few seconds. The coarser grind will clean out the chute
and then you can turn it down again while it is still grinding.
SOURCE: Broken shear pin in kitchenaid A9 Coffee Grinder
I was able to find 3/32 x 1/2 inch spring pins at a local hardware for 13 cents each. They may not last as long, but at the price I can replace as needed.
I also had to disassemble twice; I didn't notice that a portion of the old pin was wedged in the underside of the burr. When I put it back together the first time, the new pin rested on the old fragment and pressed the burrs too close together. On the coarsest possible setting, I got coffee powder!
Final note: The nut for the cap over the burrs is reverse-threaded...use a wrench on top, and a flat-blade screw driver in the slot at the bottom of the motor shaft.
SOURCE: burrs spin but no grinding
Try this, remove the bean hopper, and vac out the burr chamber, then put 1 tablespoon white rice in the burr chamber and cover with hand and turn grinder on, if the rice grinds, then your grind might have been set too fine. Turn the grinder towards fine until you can barely turn the burr nut, you will feel them touching, then turn course about 16 notches (do not use numbers, use the small notches around the rim), that should give you a great starting point for your grind.
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