DeLonghi EC 685.R: complete analysis of the model - from selection to repair

Coffee machine DeLonghi EC 685.R is one of the most popular carob models in the budget segment, which combines ease of use, compactness and decent espresso quality. This model is suitable for both beginners and experienced baristas who value manual control over the cooking process. But before buying, it is important to understand it technical features, possible operational problems and nuances service - this is exactly what we will talk about in the article.

Many people mistakenly believe that carob coffee machines require minimal maintenance, but in practice improper operation leads to breakdowns within a year. For example, scale in the boiler EC 685.R forms 2 times faster than in models with an automatic cleaning system, and ignoring regular washing can damage the thermoblock. We will analyze in detail how to avoid common mistakes and extend the life of the device.

In the article you will find:

• 🔍 Specifications and comparison with analogues (including DeLonghi EC 785 and Gaggia Classic)
• ⚙️ Step by step instructions for first setup and coffee preparation
• 🛠️ Analysis of frequent breakdowns (from leaks to heating errors) and ways to eliminate them
• 🧼 Care Guide, including group head cleaning and decalcification
• 💰 Price analysis and tips for choosing between a new and used model

1. Specifications DeLonghi EC 685.R: what's under the hood?

Model EC 685.R belongs to the class carob coffee machines with thermoblock, which means compactness and fast heating (unlike boiler systems). Device power - 1100 W, which is enough for stable pressure in 15 bar (optimal for espresso). Water tank volume - 1 l, and the waste grounds container is designed for 10–12 servings.

Key Features:

• 🔥 Stainless steel thermoblock — heats up quickly (30–40 seconds), but requires mandatory decalcification every 2–3 months
• ☕ Manual cappuccino maker (pannarello) - allows you to froth milk, but requires skill to obtain a dense foam
• ⚖️ Weight 4.5 kg — easy to move, but can “ride” on the table under high pressure (solved with rubber feet)
• 🔌 Automatic shutdown after 30 minutes of inactivity (saves energy)

For comparison: the older model DeLonghi EC 785 power higher (1350 W), and the cappuccino maker is automatic, but the price is almost 1.5 times higher. Gaggia Classic, despite similar characteristics, weighs almost 8 kg and is equipped with a professional boiler - this is a plus for temperature stability, but a minus for home use (it takes longer to heat up).

2. First setup: how to prepare EC 685.R to work?

Before using for the first time, be sure to wash all removable parts: water tank, coffee horn and cappuccino maker. Use warm water without detergents - chemical residues can spoil the taste of coffee. Also check:

• 🔌 Power cord - must not be twisted or damaged
• 💧 Water level in the tank (must cover the heating element)
• ☕ Cleanliness of the horn - wipe it with a dry cloth to remove factory grease

Next, follow the algorithm:

1. Connect the machine to the network and press the power button (I/O). Indicator READY will flash.
2. Wait until the heating indicator goes out (usually 30–40 seconds).
3. Place a cup under the dispenser and start test drain of water (without coffee) by pressing the button ☕. This will remove any possible dust particles from the system.
4. Repeat draining 2-3 times until the water becomes clear.

⚠️ Attention: If, after turning on the machine, it emits hissing sounds longer than 1 minute, this may indicate air lock in the system. In this case:

⚠️ Attention: Disconnect the device from the network, wait 5 minutes and repeat the test drain. If the problem persists, check that the water tank is installed correctly (it should fit tightly to the base).

3. How to make the perfect espresso: step-by-step recipe

Coffee quality at EC 685.R depends on three factors: grinding, rammers and water temperature. Optimal parameters for espresso:

• 🌡️ Temperature — 90–96°C (there is no adjustment in the machine, but the thermoblock maintains this range automatically)
• ⚖️ Dose of coffee - 7–9 g per serving (for a double cone - 14–18 g)
• ⏱️ Extraction time — 25–30 seconds (if it’s faster, the coffee is ground too coarsely, if it’s slower, it’s too fine)

Cooking instructions:

1. Warm up the machine (indicator READY should be on constantly).
2. Grind the grains until powdered sugar (use a coffee grinder with adjustable grind size).
3. Pour the coffee into the cone and tamp down tamper with force 10–15 kg (this is critical for uniform extraction!).
4. Place the horn in the group head and immediately start the extraction with the button ☕.
5. If the coffee is flowing too fast (less than 20 seconds), increase the dose or make the grind finer. If dripping - on the contrary, reduce the dose or use a coarser grind.

For cooking cappuccino:

1. Brew espresso into a cup of 150–200 ml.
2. Place the cappuccino maker tube in cold milk (optimally 50–100 ml per serving).
3. Open the steam tap by turning the handle counterclockwise.
4. Hold the tip near the surface of the milk for foam, or immerse it deeper for non-foaming heat.
5. Close the tap when the milk temperature reaches 60–65°C (higher there is a risk of burning out).

4. Typical faults DeLonghi EC 685.R and repair methods

Even with careful use EC 685.R may fail. Below - top 5 breakdowns and what to do with them.

Symptom	Possible reason	Solution
The machine does not turn on	Problems with the outlet, cord, or fuse	Check the outlet with a multimeter. If the cord is damaged, replace it. Fuse (usually 10A) is located under the bottom cover.
Water doesn't heat up	The thermoblock or thermostat is faulty	If the heating indicator does not go out, the thermostat needs to be replaced. The thermoblock can only be repaired by a service center.
Water flows from under the horn	Group head gasket worn	Replace the gasket (part no. DeLonghi 5312200100). Cost - approx. 300–500 ₽.
Weak water pressure	The filter or tubes are clogged	Flush the system decalcifier (for example, DeLonghi EcoDecalk). If it doesn’t help, disassemble and clean the tubes.
The car hisses and does not heat up	Air lock in thermoblock	Turn off, wait 10 minutes and run a test drain (see section 2).

⚠️ Attention: If the car turns on but does not respond to buttons, this may indicate a faulty control board. In this case, independent repair is not recommended - contact a service center. Average cost of board repair - 2000–4000 ₽.

What to do if the coffee machine gives you an electric shock?

If the body EC 685.R electrocutes, unplug it immediately! This is a sign of a breakdown of the heating element or damage to the cord insulation. Check the cord for cracks and replace it if you find any defects. If the problem persists, do not use the machine until serviced - risk of electric shock!

5. Care and cleaning: how to extend the life of a coffee machine?

Regular Maintenance DeLonghi EC 685.R includes daily cleaning, weekly washing and monthly decalcification. Neglecting these procedures leads to scale, which shortens the service life of the thermoblock. 2–3 times.

Daily care:

• 🧽 Rinse the horn after each use (coffee residues oxidize and spoil the taste)
• 💦 Drain the water from the reservoir if you do not use the machine for more than a day (stagnant water promotes the growth of bacteria)
• 🧻 Wipe the cappuccino maker with a damp cloth (milk dries quickly in the tube)

Weekly cleaning:

1. Remove dispenser (unscrew the screw from the bottom) and rinse under running water.
2. Clear mesh horn brush to remove coffee oil (use a special brush or toothpick).
3. Pass through the machine 500 ml water with the addition citric acid (1 tbsp. l. for 1 l) to remove light scale.

Decalcification (every 2–3 months):

Use only special means (for example, DeLonghi EcoDecalk or Urnex Dezcal). Algorithm:

1. Pour a mixture of water and product into the tank (the proportions are indicated on the packaging).
2. Start the cleaning cycle (without the horn!): press the button ☕ and drain 200–300 ml solution.
3. Turn off the machine 15 minutes, then repeat the drain.
4. Rinse the system with clean water (3-4 flush cycles).

6. Is it worth buying DeLonghi EC 685.R in 2026?

Model EC 685.R issued with 2018, but still remains one of the most popular in its segment. Its main advantages:

• ✅ Price — a new car costs 15 000–18 000 ₽what's on 30–40% cheaper than analogues with a boiler
• ✅ Maintainability — spare parts are easy to find, and most breakdowns can be repaired independently
• ✅ Espresso quality - when properly configured, is not inferior to machines for 30 000+ ₽

Cons:

• ❌ Plastic case — cracks may appear over time (especially if you move the car frequently)
• ❌ No temperature control — the thermoblock heats the water to fixed 92–94°C
• ❌ Noisy operation - the pump makes loud noises during extraction (approx. 70 dB)

Is it worth taking used model? Only if:

• 🔹 She passed complete cleaning (ask for proof - photo of decalcification)
• 🔹 The price does not exceed 8 000–10 000 ₽ (you can already find a new one for this money)
• 🔹 The seller provides a guarantee for at least 1 month

7. Alternatives DeLonghi EC 685.R: what to choose instead?

If EC 685.R does not fit the specifications, consider these models:

Model	Benefits	Disadvantages	Price (2026)
DeLonghi EC 785	Automatic cappuccino maker, metal body, quiet operation	More expensive by 50–70%, heavier (6.5 kg)	25 000–30 000 ₽
Gaggia Classic Pro	Professional boiler, stable temperature, durability	Takes longer to heat up (5–7 minutes), no auto shutdown	35 000–40 000 ₽
Saeco Poemia	Compact, lightweight (3.8 kg), fast heating	Weak cappuccino maker, plastic horn	12 000–15 000 ₽
Lelit Anna PL41TEM	Temperature control, PID controller, Italian quality	The price is the same as semi-professional models	45 000–50 000 ₽

If the budget is limited and EC 685.R seems too simple, pay attention to DeLonghi Dedica EC 680 - it has a similar thermoblock, but a more compact body and improved design (price - 18 000–22 000 ₽).

⚠️ Attention: Model specifications and prices may vary. Before purchasing, check the latest information on manufacturers’ websites or in stores.

Frequently asked questions (FAQ)

Can I use ground coffee instead of beans?

Yes, but the quality of the espresso will be worse. Ground coffee quickly loses its aroma, and its grind is rarely suitable for carob machines (usually too coarse). If you still use ground, choose packages marked "for espresso" and store them in an airtight container.

How often should the head gasket be replaced?

With active use (3-5 servings per day) - every 6–12 months. Signs of wear: Water seeps out from under the brewer during extraction, or coffee flows unevenly. Replacing a gasket takes 10 minutes and costs approx. 300–500 ₽.

Why is coffee bitter?

Bitterness occurs for three reasons:

1. Overextraction — the water has been in contact with the coffee for too long (reduce the time or make the grind coarser).
2. High temperature - thermoblock in EC 685.R heats water until 92–94°C, which is close to the upper limit for espresso. Try chilling the cup before preparing.
3. Stale grains — coffee loses its aroma 2–3 weeks after roasting. Buy small packs and store in a vacuum container.

Is it possible to connect EC 685.R through a voltage stabilizer?

Yes, this is even recommended if your network has frequent voltage drops. The coffee machine is sensitive to surges, and the thermoblock may fail at voltages higher than 240 V. Choose a stabilizer with a power of at least 2 kW (for example, Resanta ACH-2000/1-C).

Where to buy original spare parts?

Official spare parts (gaskets, filters, horns) can be ordered:

• On the website DeLonghi (section "Spare parts")
• In stores M.Video, Eldorado (sometimes in stock)
• On AliExpress (look for sellers with a rating above 98% and reviews of compatibility with EC 685.R)

The cost of the original group head gasket is approx. 400–600 ₽, unoriginal - 150–250 ₽ (but the quality may be worse).