GE Opal Rebuild Saga - Fix Leaking, Screeching, Scaling, and More!

I obtained a GE Opal Profile 1.0 Nugget Ice Machine on OfferUp. It was a package deal that included an all-in-one coffee machine. Two $400 machines for $50 was too good to pass up. After filling and rinsing, I found out why they wanted to be rid of it: it sounded like a wailing banshee! There was also a grinding noise. And it leaked. What had I gotten myself into?

I’m hoping what I learned will help you keep yours running too. Be sure to reach out if you have any questions or comments: dan@danlearnsstuff.com

Models

The pictures in this thread refer to what is colloquially known as Opal 1.0. It is listed on the back as OPAL01GEPSS. It has a 9-hole Cap where the ice exits the auger channel.

 

A 2.0 model has a broadly similar construction and disassembly procedure, but it may require different tools and parts than what is listed here.

Problems

Below are the types of issues that I have personally fixed on my machine:

• Have a fast leak? If it can’t hold water at all, replacing the auger seal will stop the worst leaks.
• Does it screech or whine after water has begun to freeze? Replacing the bottom seal will help this.
  
• Does it screech or whine immediately after starting, but it goes away once it gets cold? Replacing the upper auger bushing will help.
• Have white particles in your ice? Do you use tap or filtered water? Descaling will help. Switching to distilled or Reverse Osmosis water will extend the life of your machine greatly.
• Have black particles or sludge that are not mold? Replacing the upper auger bushing will help too.
• Have black particles that may be mold? A chlorine wash will help.
  

This page captures images and step by step directions for fixing the above auger-related issues. They are mostly centered within the auger chamber itself, but disassembly instructions can help you diagnose and treat a variety of problems. There are other tutorials online that can help you swap the drain lines and diagnose fan and pump problems that are separate from auger wear and tear.

Parts

Throughout this guide, I refer to replaceable parts that can wear down over time and can be replaced using various sources online. Most commodity parts and supplies can be found on Amazon. Some were specially engineered for this machine, and the community has people that are machining replacements you can purchase to keep our babies running well past their original lifetimes.

• 3/4” Auger Seal
• Auger Bushing
• H1 Food-safe Grease
• Distilled White Vinegar
• Ice Machine Cleaner

Disassembly for Auger Maintenance

 Getting into the auger is a bit more difficult than the water pump and other areas. You'll need the following tools:

• Phillips head screwdriver (with long shaft for deeply inset screws)
• Electric screwdriver with phillips head bit for lots of tiny screws
• Spudger or pry-tool
• 10mm deep socket with extension

To help clean out the auger shaft and reseat auger seals, you may also need:

• Long flat-head screwdriver
  
• Large and long socket extension tool
• Long hooked pick or long and narrow needle-nose pliers

Start by UNPLUGGING THE UNIT. I cannot stress this enough. Make sure it is not plugged in before starting!

Then, drain the unit completely. No water should remain.

You can now begin to tear into the unit by removing the top lid.  4 screws hide under rubber caps. A spudger or sharp steak knife can help remove them. Beware: If they hit the counter, they will bounce everywhere.

Disconnect the wi-fi card cable that hides right under the lid.

Remove all screws from the back panel. Move the drain hoses off the panel, and set the entire panel aside.

Remove the screws from the side panels. This is to expose the screws holding the upper tank to the chassis, and to give you more room to maneuver things. You don’t need to completely remove the surround from the chassis! Just shift it up and out of the groove in the base. Careful! It’s got sharp edges!

Unscrew the upper tank from the chassis.

Unscrew the other two interior screws for the upper tank, pictured here.

This transparent cap is held on by 3 screws and weather-stripping-like insulated moulding. Carefully remove the moulding and unscrew the cap.

Having unscrewed the upper water tank in a previous step, shift it off the black chute. It doesn’t have to move very far.

Unscrew the black chute. You will need a skinny long handled Phillips. The screws may be rusty, so be careful they don’t get stripped. There are two inside screws at the tail of the chute as well.

After the black chute is removed, this styrofoam cap can be removed as well. Carefully wiggle it free. To free up space, you can move the water tank farther away. It might also help to unplug the connectors for the front panel and fullness sensor (black and white, squeeze to separate). Remember to reconnect them!

You have successfully revealed the auger body! A 10mm socket will remove the 4 cap screws. As you loosen them, the cap may spring up. They keep tension on the seal spring.

The auger cap will pull straight up revealing the auger chamber. You can see the white bushing nestled inside the cap.

Using a cloth to help get purchase on the auger shaft, lift the auger straight up and out. It should come up with the spring part of the seal.

And now you can see directly to the bottom of the auger chamber. The seal rests on the bottom between the metal body and the ceramic ring/bushing. NOTE: This picture shows the auger seal seated incorrectly!

Congratulations! You have disassembled your ice maker.

General Maintenance: Descale and Sanitize

If you don't use distilled water or that from a reverse osmosis unit, descaling monthly will keep your unit in tip-top shape.

Clean-out and Regrease

While you have it open, take a moment to check other parts that can get gunked up.

• If your machine is whining, the auger is being eroded and scraped off in the chamber. This can lead the upper and lower tanks getting a dark sediment. Wipe  it out and rinse.
• Check the lines for white sediment. The descaling process can knock these loose, but the pump won’t be able to move it into the tank. You can detach and rinse these pipes as well.
• If you have lots of scale, it may be faster to chip it off with a brass tool. Just don’t scratch the surface of your parts by using anything harder than that.
• Vacuum off fans and grilles to keep your cooling system in top shape.
• Look for leaks and calcium deposits. These are harbingers of bigger problems.

Replace the Auger Seal

A grinding that goes away until the machine cools down or fast leaks from below the chamber through the gear case are most likely due to a bad seal at the bottom of the auger. This multi-part pump seal keeps water in the chamber, and it has rubber, ceramic, and metal parts. It is way over-built for this application, but you need to handle the parts carefully. Order matters, and cleanliness matters.

The ceramic ring sits within the round rubber seal. The other half is a metal seat, spring, and rubber seal. The seat fits on the auger shaft against the helix. The rubber seal on the spring fits against the ceramic ring when properly fit into the chamber. The ceramic is sensitive to oils on your skin. It can degrade faster and affect the seals. Clean it with isopropyl alcohol if you touch it. The rubber seals can use a tiny bit of H1 food-safe grease to help seat them properly.

To replace the pump seal, pull the auger and then use a dental scraper or hooked tool to remove the bottom seal and ceramic ring. Seat the new sitting seal on the auger with the rubber towards the socket.

It can be difficult to seat the new bottom seal in the bottom of the chamber without touching the ceramic. Slip it around a long screwdriver or socket extension, sit the tip of the tool onto the crank, and drop the seal into place. Clean off the tool and press the ceramic down into the crank cavity. If this doesn’t seat well, it will leak immediately and vigorously once you seal it back up. Note: The picture below is wrong! The seal is on the wrong side from the ring! If you have better pictures, please send them my way.

When you reset the auger, ensure the spring is not stuck in its compressed state. It will have some bounce when you put the cap back on.

Replace the Bushing

Is there an unholy banshee haunting your machine? The tell-tale wail is probably the bushing at the top of the auger. It keeps the auger centered in the chamber, but it wears down over time. This leaves the auger to scrape against the sides of the chamber. This causes black sludge and a gradually eroded auger.

eBay seller gweedoh machines his own new bushings from material that it’s much stronger than the stock ones. But from him and buy for life. You can see the size of the worn out bushings versus a new one below.

Each one comes pre-coated with food safe H1 grease as well.

Just pop the old one out and the new one in. The wailing is gone!

Note: I’ve included affiliate links to parts and products that helped me get my machine back in working order.

Drip Cup for Cast Iron Juicers

Hamilton Beach manual citrus juicers have a handy drip cup that swings out when you put a cup under the juicer, and it swings back into place when you remove your juice. Without this, the dripping juice left in the metal funnel can get all over your bar top, counter, or cutting board. If you have a generic cast iron juicer that doesn't have an attached drip cup, what is an enterprising bartender to do?

Print this thing I added to Thingiverse, of course!

The mechanism uses a rubber band of the right tension to return the cup to its initial position. As you push the cup to the side, guides slide the cup out of the way. The strength of the rubber band should be tuned to be light enough to not push over your juice cup nestled between the loving cast-iron arms of the juicer. When you remove your freshly squeezed juice, the rubber band slides the drip cup back into place. Et voila!

You'll need a rubber band, a conical shot glass (the smaller the better), and an M3 set screw. You will also need a set of hex keys to disassemble the juicer base to get the Shaft sleeve on.

Enjoy your drip-free juicer! Here are some prototype and action shots:

Food Dehydrator - Filament Dryer Mod

A half dozen full spools of PLA was discovered in the garage, and they were all out of sealed packaging. Here in the Pacific Northwest, that is no good for hygroscopic filament like PLA and PETG. When printed, it was an inconsistent stringy mess. It had a tell-tale popping like crispy bacon as it extruded, and it refused to adhere correctly.  The popping and adhesion problems I had with my tripod printer may have been caused by water-logged filament. Clearly this is a chronic problem. I'd read about filament dryers, but the cheapest were over $40. Rather than splurge, I went the DIY route with the jank turned up to 11.

OfferUp had a few used food dehydrators, and I picked a Nesco model with a few trays for $20. The simplest models are not much more than a hair dryer blowing into a big chamber made up of a bunch of trays. In my case, I wanted a single big changer into which I could put the filament spool(s). After seeing people make plexiglass versions online, I landed on an even simpler solution: $2 posterboard, doubled over and taped together into a cylinder. This gave me a big comfortable chamber in which to dry several spools if I wanted. Now to test it.

I reused the thermostat from my sous vide for clove tincture in a Huckleberry cocktail. Placing the probe into the bottom of the chamber, I tested that an empty dryer would hold the right temp (based on this fantastic article about from Prusa). And I ran it for about an hour while I tweaked the alignment and tape seals with one spool. The improvised chamber wall held, luckily, and the green tape I used does not lose stickiness at these lower temps of up to 45C/115F. I'll update this post if the PETG drying at 55C/131F has a different result.

If this system were to break in any place, it would be on the on/off duty cycle I added to maintain a constant temp. Dehydrators are meant to run for hours without stopping. Getting the fan and heating element up cranked up takes work and wears parts out, and the constant-on model I purchased second-hand was probably not designed for this. The fan was a lot noisier than the rice cooker as it cycled on and off every 30 seconds as well, so it was very annoying. By playing with the thermostat settings, I was able to change the temperature range in which it would trigger the relay while still keeping the chamber between 40-45C/104-115F. This meant it took longer breaks and cycled less often. A win for longevity.

With the preliminary tests done, the only thing left to do was run it all night. As this thing was noisy, we put it in the farthest reaches of the house, but the center of the garage would probably have been smarter.  An unknown appliance procured second-hand should be run supervised or in a fire-proof area in case it decides to melt down or short. Nothing happened, but it had me up all night checking it.  In the morning, it had run for 8 hours, and I caught it at a cooling cycle at 43C/109F. The filament itself was pliable and felt much lighter. It had a rough texture like a dry sponge.It printed nicely as well with less stringing and no popping. The $20 dryer has hopefully saved more than a hundred dollars in filament from the garbage dump. A resounding success!

I'll weigh the next spool before and after to see how much water we're really taking off. And I'll hopefully be able to test it with PETG as well.

Tools for Painting Miniatures

I post a lot about painting, but choosing and collecting the tools behind the craft can be just as interesting.  Here is a run-down of the tools that make my miniatures look less dull. For those looking for help building miniatures, I'll do a separate post about assembly tools and decals.

Brushes

Brushes are the vehicle for all your artistic endeavor with miniatures.  They can also be really expensive! Most guides focus on what to do (and not do) with your brushes, so let me focus on how to buy them.

For starting painters, don't worry about having all the right brushes, and especially don't buy the expensive ones! Take your starter kit brushes, maybe a bigger one for dry brushing, and learn on them. Learn to draw the brush away from the point instead of stubbing it into corners. Learn to load up the brush less than halfway. Above all, wash it thoroughly and prevent paint from drying in the ferrule. You will screw it up eventually, and your beloved companion will split, and then you can bury them. Keep a few of these starter brushes around for applying washes. Here's a picture of some of my first brushes that have bent and split over time due to abuse. Time to retire them from detail work.

Time for retirement, old friends

Keep your old crappy watercolor brushes for applying shades and washes

You will hit your stride with the next set of brushes. Having graduated from the $10 twelve-pack of watercolor brushes, the world splits into synthetic and sable. Synthetic are just that: plastic bristles.  And they wear over time mush faster than natural hair. Citadel just released their latest STC set, but The Army Painter brush set is probably the best value for your money. It comes with enough variety that you can learn what brushes are your favorite (and some editions come with a free sable brush, neat!).  If you already have strong opinions or lack options at your local store, you may be able to find quality synthetics like this Princeton Velvetouch Round 2 for a reasonable price at art stores that aren't expressly for nerds. Expect to pay about $6-8 per brush. And don't stress about getting the tiniest of brushes for the detail. The important part of detail work is holding a point and not how big the brush is! Even with better synthetics, you will gradually see bent tips as you use the brush.  This is how synthetics wear, and it is totally normal. If you treat them right, your first synthetic should last a squad or 10 figures. You will know your brush skills are maturing when a fresh brush lasts a whole army.

My standard kit

Curling bristles are normal, and they can get into tight corners!

 

Standard drybrush kit

Finally we come to the joyous pinnacle of your painting kit, the sable hair brushes. Yes, these brushes are made with actual animal hair.  And they are superior in almost every way to synthetics, but their price also puts them out of reach for most people.  They hold their shape better when loaded up with paint, and their hairs hold more paint so you can cover more area without going back to the palette. You probably only need one sable brush to start.  Grow your collection slowly, and they will last you forever. A note that the Kolinsky Sable is endangered in Siberia and import is difficult at best. So you're probably not getting real Kolinsky sable for under $25 a brush. Here again, Army Painter wins for having the right brushes for hobbyists. I inherited my Regiment brush, and it is still going strong after a decade of use by my father. By the time you're ready for your next sable brush, you will have enough experience to know if you want to go all-in on the Winsor & Newtons.

A few notes on storage: Try to keep the plastic tip covers for all your brushes.  It's the easiest way to protect them from accidental damage in transit.  If you find your collection growing and cannot bear to part with your new friends, make or buy a brush case in hard plastic (if you don't need to travel and know they will always be sitting up) or fabric like the one pictured below.  I threw it together from duck cloth in about an hour on a sewing machine with basic measurements. Your local art supply or fabric store has something similar for sale.

Citadel Colours App

Available for both iOS and Android, The Citadel Colour app helps me create and remember my color schemes.  I can create projects, track my color inventory, and keep a shopping list of paints for the next time I hit the local game store.  It comes loaded with a diverse palette, but it only offers the Citadel range from Games Workshop. If you use dropper bottles from Vallejo or the new Two Thin Coats range from Duncan Rhodes, you're out of luck. It also doesn't have cloud storage, so switching phones means transferring your inventory, projects, and history as well (my scheme images come from doing CYA in case I lose my phone). Notwithstanding, it has worked to keep me organized.  I would love to know if there were some non-GW options available out there to cover the various paint brands I might use.

  

Storage for Paint

I paint at both my house and my SO's, so this 48-bottle nail polish organizer is perfect for carrying almost my entire collection of paint pots or droppers when I'm being indecisive.  The important part of storage is being able to see the shade without having to look at the label.  Having a clear storage system that can corral a large collection while keeping them visible is ideal. Injection-molded two-sided plastic carrying cases for nail polish go by many brand names on Amazon, and they'll all run you about twenty-five bucks. I haven't found a better mobile solution than this, but I would also suggest similar nail polish storage for a workbench installation.  Both tiered shelves and wall-mount nail polish racks are going to be way more affordable, and see-through, than any miniature-specific laser cut racks you might find at your local game store.

Painting Handle

Whether you buy the Citadel handle or print your own, These little contraptions keep your mitts off the details until they are sufficiently primed sealed.  This is doubly important with Contrast Paints as it can almost be rubbed off like chalk when applied in thin coats and handled with your bare hands. You can even temporarily glue a base to a larger miniature like a vehicle so it can be mounted on the painting handle. Get one.  It's worth it.

 

The Wet Palette

I have used ceramic tiles and even tried Citadel's Palette Paper, but I will never go back now that I've started using a wet palette. The idea is simple: parchment floated atop a spongey pad allows water to pass from the wet pad, through the parchment, and into the paint. The paint doesn't bleed down into the pad, and instead stays hydrated as it dries from the top down. This flow retains water in your paint longer so it remains workable. But it also keeps your blends around longer without drying out, and it speeds up the "always thin your paints" advice that was key to so many of us making the leap from gloopy to gorgeous. Simply put, a wet palette will make getting paint onto models easier. Even if you have your doubts, you should give it a shot. And I'm going to show you how to do that as cheaply as possible. 

This is one area where I have not graduated to a professional solution because I'm so satisfied with how my DIY palette is working. The key is getting a truly air tight container like this now-discontinued Snapware. All it needs is a shallow depth into which you can lay something absorbent (like paper towels) and top that with a layer of parchment. The shallow depth allows you to have a low angle of attack with your brush.  You want this when rolling your brush or mixing paint around. The one I bought is deep, but the two-well insert can be removed with one well used as a wet palette and another used to hold the wiping cloth. The deep well is handy for transporting the paint itself.

On sale, it was cheapest of my options

All layers visible (palette, folded paper towel pad, and parchment)

All soaked up; you can see the water beading on the surface

If you don't want to DIY it, there is a $10 wet palette on Amazon right now that couldn't be any worse than what you're painting on. The Army Painter palette is possibly the most widely known.  It comes with a pad, sheets of their "special paper" that looks and feels like parchment, and brush storage.

Note: Since first publishing this, I obtained the Red Grass Games palette and have been loving it. Whatever you choose, get to it! It will change how you paint forever.

Photos

Susan Sontag once wrote, “Today everything exists to end in a photograph.” And the pandemic has only heightened the importance of good pictures to show your friends why you can't come out hiking on a Sunday morning.

My main photo rig is a photo tent lined with white polyester and a selection of backdrops that drape down the back in a long curve to remove seams from the finished picture.  In the past, I have built photo tents out of PVC and cotton, or vellum pasted to a rough frame of furring strips.  What really matters is the next part: I point as much direct light as possible at the walls of the tent in the hopes that it will diffuse through and evenly light my miniature from all possible angles.

For the camera, I will use a smartphone camera in a pinch, but I prefer a DLSR with a macro lens.  This combo gives ultra-detailed shots for individual minis. Remove the macro for group shots, and make sure you are lining everyone up in your depth of field. There are packs of lenses available for smartphones too.  They work, and they are a whole lot cheaper than a new DSLR just so you can take pretty pictures of your knick knacks, but you do you!

"Who knows what evil lurks in the hearts of men? The Shadow knows!

Oddments

Stop struggling with a yellow overhead light.  Get a portable or installable full-spectrum lamp or bulb like an Ott Light or LED strip.  If you haven't received your baby book update since Middle School, your grandmother's scrapbooking light is probably up for grabs! They are cheaper now than ever before, so buy one of your own rather than stealing hers. I combine the LED strip pictured below with a Costco-bought Ott Lite that even has wireless charging built in.

Applying technical paints like snow and muck is 10x easier with a sculpting tool.  These also work with green stuff, so get a big pack of them and find just the right tool for those nooks and crannies. Moving around muck is also a good use for those small brushes you can no longer use but cannot bear to throw away.

Paint cups wit ribbed bottoms can be hell on your bristles, so go easy, Bob Ross. The wide bottom on the Citadel pot can help keep it from spilling pink paint onto the carpet of your room.  Do that too much and your partner/landlord might get stabby.

Even if you aren't painting regularly on a tile anymore, a ceramic well palette can help mix larger batches of Contrast or Washes. Cover the palette with saran wrap and it will retain water like a wet palette.