I have loved this machine- had no problems until today. I put in liquid ingredients for banana bread (had not even added flour yet) and started it mixing. It was doing fine, then suddenly stopped mixing. I could hear the hum of motor attempting to mix (does not sound like it's struggling), but no movement. Anything I can do?

If you are making it in a bread maker, it's the blades that do that. Better off just mixing the ingredients then putting it in a pan in your oven.

Make Delicious Homemade Banana Bread
Cooking your own banana bread from home is a relatively straightforward thing to do, although it does require a couple of moderately advanced techniques such as creaming butter by hand and folding ingredients together.
BBC Food states that you can prepare your banana bread in under 30 minutes, while cooking time lasts between 30 minutes to an hour in order to produce a delicious loaf of homemade banana bread.

Preheat the oven to 350 F.
Sift your flour, bicarbonate of soda and salt through a sieve and into one of the two mixing bowls, ensuring that you eliminate all clumps and are left with a fine powder in the bowl.

Allow your butter to reach room temperature before creaming the butter and sugar together in the other mixing bowl.
Swirl the wooden spoon in a circular motion to beat the butter and sugar into one another for at least a minute.
The creaming process is finished once you are left with a light and fluffy, even mixture.

Crack open both eggs and add them into the creamed butter and sugar.
Peel all four bananas and lay them flat on a chopping board before mashing them into a pulp using the potato masher.
Add the mashed banana into the mixing bowl along with the buttermilk and vanilla.
Mix these ingredients together using the wooden spoon before adding the flour, bicarbonate of soda and salt from the other mixing bowl.
Fold the contents of the bowl using the large metal spoon.
Many chefs use a figure of eight movement, cutting through the surface of the liquid with the leading edge of the spoon remember that the objective is to keep a much air in the mixture as possible, so you should look to turn over the spoon as you complete figure of eight motions, thus replicating a folding motion.

Grease the loaf tin using a small amount of butter or oil, as this will prevent your banana bread from sticking to the tin after you have baked it.
Pour in the ingredients from the mixing bowl, taking care not to spill any or make a mess.
Wait for the liquid to level off so you have a flat, even surface and insert into the oven to bake for approximately 1 hour.

Remove your banana bread from the oven when it has risen and turned a golden brown color. Allow the bread to cool in the tin for 2 minutes before turning it out onto a wire rack and allowing to stand until cool.

Ensure you are using the right ingredients, fresh yeast, a little salt and maybe a crushed vitC tablet. Don't use standard fine flour you need a courser flour. help it mix by putting ingredients in evenly, liquids first. melt any butter you use in a microwave before adding. most breads use artificially improved flours. if you grind your own flour it will end up a much heavier loaf.....i like it that way.
If nothing i have said helps then it might be time to give up on your breadmaker

There will be no need to extend the baking time on your uncooked loaf for if the loaf is uncooked as you say cooking it longer won't make things any better. I suspect you need a bit of tutoring regarding the fine art of using a bread machine.

Here is the assistance I offer:

White Flour: When using white flour select nothing less than unbleached white flour containing 12 to 16% protein (or 3 to 4 % per ¼ cup serving). Storage: Flour absorbs ambient humidity hindering it from blending with liquid ingredients during the initial kneading phase so always be certain to store your flour in a burped & sealed freezer bag.

Yeast: Use active dry yeast for all your standard-rise bread recipes and rapid-rise dry yeast for all your fast-bake bread recipes. Fast-Bake aka Ultra-Bake aka Rapid-Bake aka Express-Bake is an option available on select models. Always refrigerate your yeast with a close eye on the expiration date. When using grocery-bought bread mixes always substitute the yeast packet provided with fresh active dry yeast. Tip: A packet (or "sachet") of active dry yeast contains 2-1/4 teaspoons.

Baking Surface Prep: Spray, not wipe or smear, the inside of your loaf pan generously with cooking oil before adding the ingredients.

Water: Use only drinking or filtered water, never tap, boiled or distilled.

Ingredient Temperatures: All ingredients should be at room temperature before pressing Start. Specifically 70 to 80 degrees F, 21 to 87 degrees C. Add liquids, oils, salts, sugars and seasonings first, next the flour, and last the yeast.

Delayed Start: Flour floats on the surface of the water until the initial kneading phase begins. That is why many breadmakers have a programmable start-delay timer. You can add the ingredients tonight and wake up in the morning to the aroma of fresh-baked bread.

Shelf Life: Refrigeration and/or freezing finished loaves is not recommended. For best results store them in a breadbox. Tip: Adding 1-2 tsps of lemon juice to any bread or dough recipe will double the shelf life of your bread.

Measuring: Water MUST be measured using a clear liquid measuring cup. Dry ingredients MUST be measured using standard measuring cups. All measurements, either spoons or cups, MUST be leveled.

Slicing The Loaf: Electric carving knives work best, especially when using a slicing guide. Be certain to wait until the loaf is cool to the touch before slicing.

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Without knowing the specific ingredients in your recipe and having no experience with gluten free flour I am basing this on what I know about bread makers in general. I have owned dozens!
1) If the onion spice you are adding is something like a mix (onion soup mix for example) then you may get better results if you cut back on the salt by about 1/2. Also, next time when your machine starts the rapid knead (after the beginning slow knead) if the dough looks like batter instead of a dough ball add about 1 tablespoon slowly trickled in over about 10 seconds. Watch the dough ball and see if it starts to look a little dryer. The goal is to not have the gooey batter on the bottom of the pan. The slow addtions of flour will do that for you. If this works please leave a testimonial. I like helping fellow bread machine makers and getting feed back! Best of Luck with your next effort!

I have made the following recipe in my West Bend machine with great results. I just got a Sunbeam 5895 at a garage sale - it works great - just wanted a different "shape" loaf! I'm going to use this recipe in my Sunbeam - don't see why it won't work!

Here's the recipe!
1/2 cup softened butter, cut into small pieces for good blending
1 cup mashed ripe banana (personal note: if my ripe bananas don't measure up to 1 cup, I add enough milk to make it 1 cup. Seems to be okay)
2 eggs, large, slightly beaten
1/2 cup chopped nuts (optional)
2 cups all purpose flour
3/4 cup sugar
1 teaspoon baking powder
1/2 teaspoon baking soda
1/2 teaspoon salt

Grease inside of pan and knead bar generously with vegetable shortening (I just spray with Pan Spray). All all ingredients in order listed above to pan. Lock pan into bread machine. Program for quick bread. After a few minutes of mixing, I usually take a rubber spatula and scrape down the sides and stir in any flour that has not been completely mixed. I didn't do this once and ended up with a loaf that had flour coated corners!

Good Luck! Enjoy!

Place the ingredients into the bread machine, liquid first, then flour and dry ingredients, make a little pit in the top of the flour and put the yeast in there. Then start the machine. You add fruit and nuts later, usually there is a beep for adding things.

I had a similar problem when I switched machines. It seems that most recipes will work in same size machines (1 or 1.5 lb loaf size). My issue was that my old machine had to have liquids in first and then dry ingredients (new machine is the opposite). I ruined several loaves before I figured out the issue. I would have never imagined the order of ingredients would make a big difference.
Good luck!

Look at the box first. Many times it will have instructions on it. However sometimes it may not and have only the the dry ingredients. If the box has no instructions, see how many cups of flour the mix uses. If it uses 3 cups of flour total, the mix is for a 1 1/2 pound loaf. If the mix uses 2 cups of flour it will make a 1 pound loaf. Box missing this info? It's time to take the flour out of the box to measure it with at measuring cup. Mixes sometimes combine all the ingredients together so it will measure bit more than 3 cups for a 1 1/2 pound loaf or 2 cups for 1 pound loaf. After finding out how big the loaf is going to be then get the bread pan and instruction manual and start constructing the dough. I'd find the recipe in the manual that matches the mix the best to find out how much liquid to use. (for a classic whit its 1 cup for 1 1/2 pound leaf and 3/4 cup for 1 pound loaf) Then I put the liquid in the pan first along with butter (if necessary), followed by the dry ingredients in the mix with the yeast at the top. Put the pan into the bread machine and select 1 or 1 1/2 loaf or if it is a french or sweet bread. Press start. Unfortunately I have a different machine than you do, but I think this will help.