Common Espresso Machine Problems and How to Fix Them

One morning your espresso tastes thin, even though you used the same beans as yesterday. The machine turns on, the water flows, and nothing looks broken.

It’s easy to panic and assume the worst. Most of the time, the fix is simple.

Many common espresso machine problems come from grind size, old beans or buildup inside the machine, not a broken part. This guide walks you through each one before you call a repair shop.

How We Chose These Machines

These are research-based picks with 4 stars or more on Amazon and plenty of reviews.

I chose machines that make problems easier to spot and fix, such as an adjustable grinder, a pressure gauge or simple, durable parts.

Quick Comparison Table

Start With What You Taste

Good espresso machine troubleshooting starts in the cup. KitchenAid says sour, bitter or watery shots usually trace back to grind size, dose, tamping, brew ratio, water, settings or cleaning.

1. Weak or Watery Espresso

Weak espresso usually means water ran through the coffee too fast. KitchenAid says a grind that’s too coarse lets water pass too quickly, creating weak or watery shots.

Try a finer grind, check you’re using enough coffee and use fresh beans.

2. Bitter Espresso

If it’s harsh or bitter, the grind may be too fine and the water is moving too slowly. Grind a little coarser and pull another shot.

Old coffee oils in the machine can add bitterness too, so make sure your daily cleaning is up to date.

3. Little or No Crema

Stale beans, a grind that’s too coarse and weak tamping are the usual causes. De’Longhi also lists thinner crema as a sign of limescale buildup inside the machine.

Start with fresh beans, then descale if the problem stays.

4. Steam Wand Not Working

A steam wand not working is usually a clog. Dried milk blocks the tip when the wand isn’t purged and wiped after each use.

Clean the tip, purge the wand and make sure the water tank isn’t low. Mineral buildup can also weaken steam, so descale if cleaning doesn’t help.

5. Espresso Machine Leaking

An espresso machine leaking water often has a simple cause. Check for:

    • A water tank that isn’t seated properly.
    • An overfilled drip tray.
    • A worn gasket around the group head.
    • Loose connections.

Reseat the tank and empty the tray first. If it still leaks from inside the machine, contact the manufacturer.

6. Shots Running Too Slowly

A grind that’s too fine, too much coffee or hard tamping can all slow the flow. KitchenAid notes that sputtering or poor flow can also mean the machine needs descaling.

7. Espresso Machine Not Working at All

If your espresso machine not working means no power, start with the basics:

    • Is the outlet working?
    • Is the power cord firmly plugged in?
    • Is the water tank seated properly?
    • Is an error message showing?

If none of those fix it, check your manual or contact the manufacturer.

When to Call a Professional

Contact the manufacturer or an authorized repair center if the machine leaks inside, shows electrical damage, makes grinding noises from the pump or keeps showing error codes. If it’s still under warranty, don’t open it yourself.

How to Prevent Most Problems

Most of these issues stay away with simple care. Rinse the portafilter, purge the steam wand, empty the drip tray and descale on schedule.

My guides on How to Clean an Espresso Machine and How to Descale an Espresso Machine give you the full routine.

Our Top Picks

Breville Barista Express Espresso Machine (BES870XL)

Best for: Fixing taste at the grinder

Evidence: Research-Based Pick

Since grind size causes so many taste problems, a machine with an adjustable built-in grinder makes fixes quick. The Barista Express has more than 25,000 Amazon ratings averaging 4.6 stars.

Benefits

    • Adjustable built-in conical burr grinder.
    • Manual steam wand.
    • Digital temperature control for steadier shots.

Drawbacks

    • Takes practice to dial in.
    • Can’t brew and steam at the same time.

Choose it if: You want control to fix your own shots.

Skip it if: You want one-touch drinks.

Click the link now to buy the Breville Barista Express Espresso Machine (BES870XL) from Amazon.

We earn a commission if you make a purchase, at no additional cost to you.
11/05/2026 10:53 am GMT

CASABREWS CM5418 Compact Espresso Machine

Best for: Spotting pressure problems

Evidence: Research-Based Pick

The built-in pressure gauge shows you what’s happening during each shot. That makes it easier to tell if your grind or tamp is off.

Benefits

    • Built-in pressure gauge.
    • Strong steam wand.
    • Budget-friendly price.

Drawbacks

    • No built-in grinder.
    • Some owners mention noise.

Choose it if: You want to learn what each shot is telling you.

Skip it if: You want a fully automatic machine.

Click the link now to buy the CASABREWS CM5418 Compact Espresso Machine from Amazon.

We earn a commission if you make a purchase, at no additional cost to you.
11/05/2026 11:07 am GMT

Gaggia Classic Evo Pro Espresso Machine

Best for: Simple, durable build

Evidence: Research-Based Pick

The Gaggia Classic Evo Pro keeps things simple, with fewer electronics and café-style parts. Fewer parts means fewer things to go wrong.

Benefits

    • 58mm commercial portafilter.
    • Commercial-style steam wand.
    • Solid steel housing, made in Italy.

Drawbacks

    • No built-in grinder.
    • Learning curve for beginners.

Choose it if: You want a machine built for the long haul.

Skip it if: You want automatic milk frothing.

Click the link now to buy the Gaggia Classic Evo Pro Espresso Machine from Amazon.

We earn a commission if you make a purchase, at no additional cost to you.
11/05/2026 10:53 am GMT

Frequently Asked Questions

Why is my espresso weak?

Usually the grind is too coarse, you used too little coffee or the beans are stale. Adjust one thing at a time.

Why won’t my steam wand make steam?

Dried milk may be blocking the tip, the machine may not be hot yet or scale may be limiting flow. Clean it first, then descale.

Why is my espresso machine leaking?

Check the water tank, drip tray and gaskets first. Most leaks come from one of those.

Can hard water damage my machine?

Yes. Hard water leaves mineral buildup that can slow brewing and weaken steam over time.

How can I make my machine last longer?

Clean it regularly, descale on schedule and fix small issues early. My guide How Long Do Espresso Machines Last? has more tips.

Conclusion

Before you panic, check your grind, beans and cleaning routine. Those three fix most problems.

The Barista Express is my top pick for easy fixes at the grinder. The CASABREWS helps you read pressure, and the Gaggia Classic Evo Pro keeps things simple and sturdy.

To stop problems before they start, follow the routine in How to Clean an Espresso Machine.

You don’t have to decide today, and you don’t have to remember any of this. Pin the images from this post to my Pinterest, @sianahskitchenguide, so they’re waiting when you’re ready, and follow me there too. If you’d rather browse everything I’ve picked in one place, my Amazon storefront, Sianah’s Lifestyle Finds, is open anytime. It has the recommendations from both my Lifestyle Blog and this blog.

I’m glad you were here.

Sianah ❤️

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Product

Best for

Key features

Breville Barista Express (BES870XL)

Fixing taste at the grinder

Adjustable built-in grinder, steam wand, semi-automatic

CASABREWS CM5418

Spotting pressure problems

Built-in pressure gauge, 20-bar pump, steam wand

Gaggia Classic Evo Pro

Simple, durable build

58mm commercial portafilter, solid steel housing

What you notice

Likely cause

First fix to try

Sour or watery shot

Grind too coarse

Grind finer

Bitter or harsh shot

Grind too fine

Grind coarser

Thin crema, cooler coffee

Scale buildup

Descale the machine