1. Ntuziaka nchekwa
Please read all instructions carefully before using the KOIOS EM621 Espresso Machine. Retain this manual for future reference.
1.1 Nchekwa izugbe
- Ejila ngwa, eriri ọkụ, ma ọ bụ nkwụnye na mmiri ma ọ bụ mmiri mmiri ndị ọzọ.
- Ngwa a bụ maka naanị ụlọ. Ejila n'èzí.
- Debe ngwa ngwa ka ụmụaka ghara iru.
- Always ensure the water tank is filled before operation to prevent damage to the pump.
- Jiri naanị oyi, mmiri dị ọhụrụ na tank mmiri.
- Exercise caution when handling hot surfaces and steam. The steam wand can become very hot.
- Ejila ngwa ahụ rụọ ọrụ ma ọ bụrụ na eriri ọkụ ma ọ bụ plọg mebiri emebi.
- Hụ na e tinyere ngwa ahụ n'elu ebe kwụsiri ike, dị larịị, nke na-anaghị ekpo ọkụ.
1.2 Nchekwa eletriki
- Connect the appliance to a grounded electrical outlet with the correct voltagE (120V).
- Kpupu ngwa ahụ na ntinye mgbe ejighị ya na tupu ihicha ya.
- Ekwela ka eriri ike kwụgidere na nsọtụ tebụl ma ọ bụ counter, ma ọ bụ metụ ebe dị ọkụ aka.
- If overheating occurs, unplug the power cord immediately and allow the machine to cool.
2. Ngwaahịa gafereview
The KOIOS EM621 is a semi-automatic espresso machine designed for home use, featuring a 20-bar pump, PID control, and a steam wand for milk frothing.

Foto 1: N'ihu view of the KOIOS EM621 Espresso Machine, showing the control panel, portafilter, and drip tray.
2.1 Akụkụ
- tank mmiri: 58oz (1700ml) removable tank with a transparent design and carrying handle.
- Ogwe njikwa: Features power button, 1-cup, 2-cup, and Americano buttons, and a pressure gauge.
- Portafilter: Holds ground coffee, includes 2 stainless steel filters for different serving sizes.
- Ụdị Steam: 360° rotatable stainless steel wand with anti-scald silicone handle for frothing milk.
- Ntapu atịpị: Removable for easy cleaning, with a red indicator knob for excess water.
- Ngaji atụ: Included for accurate coffee dosing.
2.2 Njikwa
- Bọtịnụ ike: Gbanyụọ ma ọ bụ gbanyụọ igwe.
- 1-Cup Button: Dispenses a single shot of espresso.
- 2-Cup Button: Dispenses a double shot of espresso.
- Bọtịnụ Amerịka: Dispenses an Americano.
- Knob ọrụ: Selects between Coffee, Hot Water, and Steam modes.
- Nleba mgbali: Displays brewing pressure.
3. Nhazi
3.1 Nhicha mbụ
- Wepu ihe nkwakọ ngwaahịa niile.
- Wash the water tank, portafilter, filters, measuring spoon, and drip tray with warm soapy water. Rinse thoroughly and dry.
- Jiri mgbasa ozi hichaa mpụta igweamp akwa .
3.2 Na-ejuputa tank mmiri
- Remove the water tank from the back of the machine using its handle.
- Fill the tank with fresh, cold water up to the MAX line.
- Place the water tank back onto the machine, ensuring it is securely seated.
3.3 Ịkwalite igwe ahụ
Before first use, or if the machine has not been used for a long time, prime the system:
- Gbaa mbọ hụ na ejula tank mmiri.
- Tinye otu iko n'okpuru portafilter spout (na-enweghị kọfị).
- Turn the function knob to the "Coffee" mode limit.
- Press the 1-cup button. Water will flow through the portafilter. Let it run for about 30 seconds.
- Turn the function knob to the "Hot Water" mode. Let water flow from the steam wand for about 30 seconds.
- Turn the function knob back to the neutral position. The machine is now primed.
4. Ntuziaka ọrụ
4.1 Ime Espresso
- Kpochapu: Turn on the machine. Ensure the function knob is set to "Coffee". Wait for the indicator light to turn solid, indicating the machine is preheated.
- Kwadebe kọfị: Grind fresh coffee beans to a fine espresso grind. Fill the appropriate filter basket (1-cup or 2-cup) with ground coffee.
- Tamp: Jiri tamper to press the coffee grounds firmly and evenly into the filter basket. Ensure the surface is level.
- Tinye Portafilter: Insert the portafilter into the group head and twist it firmly to the right until it is securely locked.
- Iko ebe: Tinye iko espresso gị n'elu tray mmiri ahụ kpọmkwem n'okpuru oghere portafilter.
- Ime biya: Press the 1-cup or 2-cup button. The machine will begin brewing. The PID control system ensures optimal water temperature for extraction, and the pre-soak system moistens the grounds for uniform extraction.
- Kwụsị: The machine will automatically stop brewing when the programmed volume is reached. You can manually stop brewing at any time by pressing the button again.
- Wepu Portafilter: Jiri nlezianya wepụ portafilter site n'ịtụgharị ya gaa n'aka ekpe. Tụfuo ihe e ji kọfị mee.
4.2 Mmiri ara ehi
- Kwadebe mmiri ara ehi: Fill a stainless steel frothing pitcher with cold milk (whole milk is recommended for best results).
- Mee ka Steam rụọ ọrụ: Turn the function knob to the "Steam" mode. Wait for the steam indicator light to illuminate, indicating the machine is ready to produce steam.
- Mkpanaka nhicha: Briefly open the steam valve to release any condensed water from the wand. Close the valve.
- Mmiri ara ehi: Immerse the tip of the steam wand just below the surface of the milk. Open the steam valve slowly. Move the pitcher up and down to create foam.
- Kwụsị steaming: Once the desired texture and temperature are achieved, close the steam valve and remove the pitcher.
- Mkpanaka Dị Ọcha: Jiri mgbasa ozi hichaa akpa uzuoku ozugboamp ákwà iji gbochie mmiri ara ehi fọdụrụ ka ọ ghara ịkpọ nkụ. Mepee valvụ uzuoku ahụ ọzọ nwa oge iji wepụ mmiri ara ehi ọ bụla dị n'ime mkpanaka ahụ.
4.3 Ọrụ Mmiri ọkụ
To dispense hot water for warming cups or other uses:
- Ensure the machine is on and preheated.
- Tinye otu iko n'okpuru uzuoku wand.
- Turn the function knob to the "Hot Water" mode. Hot water will dispense from the steam wand.
- Turn the knob back to the neutral position to stop the flow.
5. Nlekọta
5.1 Nhicha kwa ụbọchị
- Ihe nzacha na nzacha: After each use, remove the portafilter, discard grounds, and rinse the portafilter and filter basket under running water.
- Ntapu atịpị: Empty and clean the removable drip tray daily or when the red indicator knob appears.
- Ụdị Steam: Always wipe the steam wand immediately after frothing milk. Purge the wand to clear any internal residue.
- Mputa: Jiri nwayọ hichaa mpụta igwe, damp akwa . Ejila ihe nhicha abrasive.
5.2 Ichacha tankị mmiri
Clean the water tank weekly with warm soapy water. Rinse thoroughly to remove any soap residue.
5.3 calhapụ ịda
Ịbelata ihe na-arụ ọrụ mgbe niile dị mkpa iji mee ka igwe rụọ ọrụ nke ọma ma mee ka ọ dịgide ogologo ndụ. Ugboro ole ọ ga-ewe dabere na ike mmiri na ojiji ya.
- Kwadebe ihe ngwọta maka iwepụ ihe dịka ntuziaka nke onye nrụpụta ihe na-ewepụ ihe si dị.
- Jupụta tank mmiri na ngwọta nkwụsị.
- Remove the portafilter handle. Place a large water bowl under the coffee spout and another under the steam wand.
- Press the 1-cup and 2-cup buttons simultaneously. The machine will begin the descaling cycle.
- Allow the machine to complete the cycle, or continue cleaning until the water tank is empty.
- After descaling, rinse the water tank thoroughly and fill it with fresh water.
- Run several cycles of fresh water through the coffee spout and steam wand to rinse out any remaining descaling solution.
6. Nchọpụta nsogbu
| Nsogbu | Ihe nwere ike ime | Ngwọta |
|---|---|---|
| Power button red light flashing, machine not heating. | Function knob not in "Coffee" mode limit or empty water tank. | Ensure the function knob is turned fully to the "Coffee" mode limit. Check and refill the water tank. |
| Machine malfunctions during operation. | Temporary system error. | Long press the power button for 5 seconds to clear the machine's memory and reset. |
| Overheating occurs. | Extended use or internal issue. | Unplug the power cord and allow the machine to cool down completely before resuming use. |
| Coffee puck is watery sludge, not solid. | Insufficient coffee grounds, incorrect grind size, or improper tamping. | Ensure enough coffee grounds are used. Adjust grind size to be finer. Tamp guzosie ike na nke ọma. |
| Milk frothing wand not producing steam or poor foam. | Clogged wand, insufficient heat, or improper technique. | Clean the steam wand thoroughly. Ensure the machine is fully heated in "Steam" mode. Review usoro frothing . |
7. Nkọwapụta
- Akara: KOIOS
- Ụdị: EM621
- Ụdị Onye na-eme kọfị: Igwe Espresso Semi-Automatic
- Mgbapụta mgbapụta: 20 Ogwe
- Ike: 1200W
- Ike tank mmiri: 58oz (1700ml)
- Ihe: Stainless Steel exterior
- Akụkụ ngwaahịa: 11.61"D x 11.61"W x 6.3"H
- Ibu ihe: 8.71 pound
- Atụmatụ pụrụ iche: PID Control System, Smart Pre-soak System, 360° Steam Wand, 3 Extraction Choices (1 cup, 2 cups, Americano), Hot Water Function, Descaling Function.
- Ngwa gụnyere: Espresso Machine, 2 Stainless Steel Filters, Measuring Spoon, Removable Drip Tray, Steam Wand, Water Tank.
8. Akwụkwọ ikike & Nkwado
The KOIOS EM621 Espresso Machine comes with a 1-afọ akwụkwọ ikike.
If you have any questions, encounter issues, or require assistance with your product, please contact the KOIOS after-sales support team. Refer to the contact information provided in your product packaging or on the official KOIOS websaịtị maka nkọwa nkwado kachasị ọhụrụ.