A semi-automatic coffee machine is the opposite of a fully automatic coffee machine. “Automatic” means that after filling the beans and pressing the powder, you only need to turn a knob or press a button to get the coffee of your choice. A “semi-automatic” coffee machine is a machine that does not grind the beans but only uses ground coffee. However, semi-automatic coffee machines need to be cleaned and maintained regularly. If they are used every day, they need to be cleaned daily, and the relevant parts replaced every month. Let’s take a look at the cleaning and maintenance of semi-automatic coffee machines.

How espresso coffee machine works?

The machine’s quality will determine the price of the device and affects the effectiveness and service life of the machine. If the quality is not good, the engine is prone to frequent breakdowns, and the service life is significantly reduced. Sound quality can dramatically improve efficiency, but again good quality, the equipment will have some problems after a long time. Moreover, for novices, knowing how to use and repair the equipment is beneficial to prolong the equipment’s service life. It reduces the delay in use due to extended maintenance cycles.

Semi-automatic coffee machine cleaning and maintenance

A daily cleaning and maintenance work of Semi-automatic coffee machine

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1, the coffee machine body cleaning: daily wipe the body with a wet rag before turning on the machine; if you need to use detergent, please choose a mild non-corrosive detergent that will be sprayed on a damp rag and then wipe the body (note that the rag should not be too wet, the detergent should not be sprayed directly on the body to prevent excess water and detergent infiltration into the circuit system, erosion of wires caused by short circuit).

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2 、Steaming head outlet: Remove the handle after each production and press the cleaning button to rinse off the coffee grounds left in the steaming heat and on the filter, then embed the handle in the base (note: do not embed the handle tightly at this time) and press the cleaning button and shake the grip from side to side to rinse the coffee grounds from the steaming head pad area and the inside of the steaming head.

3、Steam Wand: After using the steam wand to make milk froth, wipe the steam wand with a clean damp cloth and turn on the steam switch again to clean the residual milk Mian scale inside the jet hole with the impulse and high temperature of the steam itself to maintain the smooth flow of the jet hole; if there are residual milk crystals on the steam wand, soak the steam wand in a steel cup filled with an eighth of hot water to soften the crystals inside the jet hole and on the steam wand.

4, boiler: to extend the service life of the boiler, if the machine is not used for a long time, please turn off the power and turn on the steam switch, the pressure in the boiler is ultimately released, to be boiler pressure gauge indicates zero, steam is no longer emitted before cleaning the water tray and drainage tank (Note: do not turn off the steam switch at this time, and then turn off the steam wand after the next day when there is hot water dripping out to balance the pressure inside and outside the boiler).

5、Water tray: Before opening the shop or before use, remove the water tray and scrub it with a clean cloth, then put it back on after it is dry.

6、Drain: remove the water tray and use a damp rag or napkin to remove the sediment from the drain, then rinse with hot water to keep the drain open; if the drainage is poor, pour a small spoonful of cleaning powder into the drain and rinse with hot water to dissolve the coffee residue oil in the gutter.

7. Filter cup and handle: Wash the handle with hot water at least once a day to dissolve any residual coffee oil and sediment on the hold to avoid the flow of oil and deposit into the coffee during the steaming process, which may affect the quality of the coffee.

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8. Brewing system and filter cup handle: remove the filter cup from any filter cup, take and replace it with a non-porous filter cup for cleaning and sterilization; place a small spoonful of cleaning powder (2-3 g) into the filter cup; insert the filter cup handle into the base and check that it fits perfectly; press the cleaning button for about 2-3 seconds and then stop the button, repeat this several times and then relax the handle, sweep the cleaning button and shake the grip from side to side to rinse the brew head gasket and the inside of the brew head. After cleaning, remove the cleaning button from the handle to allow the residual cleaning powder to flow out of the brewing system, and press the button to stop after about 1 minute. Test brew a cup of coffee to remove the odor after cleaning. If there are multiple spouts, repeat the above steps for other fixtures.

B. Weekly cleaning and maintenance work.

1、Spout:

• Remove the copper head and net from the spout (if the machine has just been used, please note that it is hot), soak (1000ml of hot water mixed with three tsp of powder) for one day, rinse all the coffee oil residue and blockages from the copper head filter hole with water and wipe with a clean, soft, wet rag.
• Check if the copper head filter is all clear; if there is any blockage, please use a fine wire or needle to clean it carefully.
• Put back all the accessories.

2. Filter cups and handles: soak the filter cups and feels in cleaning solution (500ml hot water mixed with 3 tsp cleaning powder) for one day to dissolve the residual coffee oil residue (note: the plastic part of the handle should not be soaked in a cleaning solution to prevent the plastic surface of the handle from being dissolved by the cleaning solution; rinse all accessories with clean water and wipe with a clean, soft, damp cloth; return all accessories.

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3. Monthly and quarterly cleaning and maintenance work.

1、Water filter: check and replace the first and second water filter cores; it is recommended to replace them once a month.

2、Water softener: inspect and replace the third water softener; steps are as follows.

Please turn off the water supply; remove the third water softener for cleaning, and soak it in a 10% salt water concentration.

Common faults and solutions for semi-automatic coffee machines

Is the coffee not hot enough?

There are several reasons why this usually happens.

1. The coffee powder is ground too coarsely or not filled and pressed hard enough, causing the hot water to pass through the filter too quickly

2. The coffee handle is not locked on the head after use, so the temperature of the handle is too low

3. The cup is not warmed

4. The heating tube of the coffee machine is faulty

 

First of all, exclude the phenomenon that the coffee is not hot enough due to improper operation. If you suspect that the coffee machine’s heating tube is faulty, you should first consult a professional technician and do not take the risk of doing it yourself. Alternatively, if the coffee machine trips as soon as it heats up, it is also possible that the heating tube is faulty.

Is coffee spilling out of the coffee handle?

There are three common causes of this type of malfunction.

1. the coffee handle is not locked

2. coffee powder on the edge of the filter of the coffee handle

3. deterioration of the brewing head rubber ring

For the first two reasons, the problem can be solved by merely correcting the operation. If the third cause is encountered, only replacing the head gasket on the brewing head will solve the problem without any problems.

Nozzle steam wand not producing air for half a day?

This is most likely because the small hole in the steam wand’s nozzle is blocked by something dirty. Use a professional cleaning powder to soak the removed nozzle. In general, any dirt clogged in the nozzle hole can be cleaned out by this method. But if you can’t troubleshoot effectively in this way, you’ll need to consult a professional technician!

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Coffee machine not making coffee?

In this case, you can check the power supply to see if it is powered up adequately. If you are sure that the power has been turned on properly, the causes of this fault could be

1. Water has entered the coffee machine and caused a malfunction

2. The coffee powder is too finely ground, or the filling pressure is too hard

3. Clogged flow meter

4. The brew head restriction hole is blocked

5. Solenoid valve does not work

The first thing to rule out is that the coffee machine is not working because of irregularities in operation, such as grinding the coffee powder too finely or filling it too tightly. Secondly, you can check whether the light on the flow meter of the coffee machine is usually flashing when the device is powered on; if the light is off, it proves that the small hole in the flow meter is blocked, you can disconnect the power, remove the flow meter and use a fine needle to clear the secured area. If the coffee machine does not make the usual sound when started, the solenoid valve may not be working and needs to be replaced. If you are unable to determine why the coffee machine is not working after carrying out an appealing check, you should have it repaired by a professional technician.