DIY cooler repair

Coolers or water dispensers are becoming more and more popular every year, and such devices can be used both in office premises and in an apartment. The need for clean water will never decrease. Any equipment from time to time, regardless of quality and manufacturer, may become faulty. If the breakdown and malfunction are light, then the repair can be done by hand, without contacting service centers.

High-quality repairs can only be made if the reason is identified. Before disassembling the device for water purification, carefully read the instructions for the cooler, which indicates possible malfunctions and solutions.

There can be many reasons for the malfunction. Often there are those that can be eliminated fairly quickly. Let's take a look at them.

If dirt has accumulated in the cooler, then it will stop working - it will need cleaning.

• First, the device is disconnected from the mains and the water bottle is removed.
• The surface of the cooler should be thoroughly rinsed using ordinary dishwashing detergents. The work must be done carefully, especially in the place where the needle is located, on which the container for the liquid is put on.
• Then they take up the pallet. It is thoroughly washed, rinsed.
• All parts of the dispenser are wiped dry with a soft cloth.

Then all the elements of the device are returned to their places. Pour water into the bottle and drain a little through the faucet. This is necessary to flush the tap, as some detergent may remain in the tap.

Most often cause of malfunction is as follows:

• The device is not connected to the mains.
• We did not click on the "enable" button, which is located on the panel.

After carrying out the necessary operations, the indicator still does not light up, check the outlet itself. It's easy to do: take any electrical appliance and plug it in. If it does not start working either, the reason is a malfunction of the outlet itself: either replace it, or plug the cooler into a different outlet.

If the cooler does not start working in it, you will have to disassemble equipment:

• We remove the panel on the rear panel, check the fuse is working. If necessary, insert a new element.
• Again, nothing happened, which means that the reason is in the heating element. In this case, the malfunction can only be eliminated at the service center.

There are only two reasons for the appearance of such a malfunction:

• When installing the bottle, they forgot to remove the label.
• During operation, a plug of air appears in the tank, which does not allow the cooler to work efficiently. It is easy to eliminate the inoperative state of the installation: the dispenser is pumped until air bubbles appear in the water tank itself.

If the owners use the cooler correctly, follow the instructions, then, as a rule, such misunderstandings do not arise. In addition, checking the operation of the taps should be done every time the water in the bottle is changed.

If you notice that from the dispenser water spontaneously flows out, check the integrity of the container. Perhaps microcracks have appeared on it. You can eliminate this error yourself. To do this, remove the damaged bottle and replace with a new plastic container.

If liquid constantly leaks, dripping from the tap, then you cannot cope with the problem with your own hands: this malfunction can only be removed by the specialists of the service center.

Electronic coolers often suffer from this disease.This is due to the design of the equipment and technical capabilities. Cooling of one liter takes place in an hour, while the water temperature can be fifteen degrees below the ambient air.

The coolers do not have great performance capabilities. These devices do not belong to high-performance appliances... If you need colder water, then the cooler is installed in a cool room out of the sun.

The technical parameters of the coolers are to blame for the malfunction. In a standard device, no more than five liters of water can be heated in one hour. If the liquid is poured in a larger volume, then the cooler does not have time to heat the water.

This is not a breakdown of the device, it can be easily eliminated if the instructions for use are followed. But the presence of scale contributes to the fact that the water will not heat up quickly enough.

The cooler should be mechanically cleaned from time to time. The work is carried out depending on the model and recommendations.

Steps for disassembling the cooler:

1. Self-tapping screws are unscrewed from the back wall using a curly screwdriver. A tank with temperature sensors, in which the water is heated, is located at the top of the device.
2. On the right, a drain plug is rigidly attached through which water is drained. There is another plug on the left, which is removed to drain the cold water in the cooling system.
3. Taking the key number 15, you need to remove the rubber seal. Using a small curved screwdriver with a long enough handle, remove the 4 screws.
4. We dismantle the heating tank by cutting off the clamps from the branch pipe, and then all the pipes.
5. Then we are engaged in the removal of power wires, thermal sensors, ground wires with six screws.
6. If, after removing the tank, there is no paste on the seats, then you need to cover them with thermally conductive paste.
7. After that, we begin assembly, starting with the last removed part.

After completing the assembly, fill the system with water. We check how it flows. After that, it remains to connect the device to the network. If the indicator lights are working properly, then the problem has been fixed. You can watch the video in more detail about this operation.

Other troubles:

• The cooler may fail if it was turned on when there was no water. Heating elements heat up and burn out.
• The pump has failed. You need to connect the cooler to the network and check the operation of this element.
• When installing the cooler, make sure that there is a distance of about 10 cm between the device and the wall. Otherwise, the device may quickly become unusable.

1. Use water with a low salt content, then scale will not appear soon.
2. Do not leave the cooler plugged in if it runs out of water.
3. Never disassemble the device yourself if the cooler has not expired the warranty period.

DIY HotFrost cooler repair

Let's consider several cases of cooler repair, for example, let's take a cooler of the HotFrost802CE model.

This article is designed primarily for those people who have the necessary skills to work with electrical appliances, who are able to give an account of their actions themselves. After all, repairing a HotFrost cooler with your own hands is quite a serious matter. And he must be approached with all responsibility. For the rest, the inscription on the cooler “DO NOT OPEN”, which means “DO NOT OPEN” in Russian, should be the final phase in the repair of the cooler. There is no need to climb further. Trust the professionals better. Take your cooler to a repair shop where it will be brought back to life for you.

What to do if the cooler does not heat (does not boil) the water?

The photo shows that there are a total of three indicator lights. If shines yellow indicator, it means that the device is connected to the network. It always burns. Red indicator responsible for heating. It goes out when the water is heated to a temperature of 96 C, and, accordingly, is suitable for making hot drinks (tea, coffee). Green indicator signals the operation of the cooling system. As soon as the cold water temperature reaches +5 C, it turns off. But what if the red indicator is off, and the water from the hot tap is cold?

If your cooler does not heat up the water and, at the same time, the heating indicator does not light up, as shown in this photo, then in 90% of cases the cooler has the following faults:

a) one of the temperature sensors (very rarely both come out at the same time)

b) defective Heating element of the heating tank

In order to repair any equipment yourself, including a water cooler, you need to stock up on a tool. So, for example, in our case, you will need the following tools:

b) 15 "open-end wrench

c) small Phillips screwdriver

you will also need plastic clamps necessary to tighten and seal the connections

In order to start the repair, you must first de-energize the device, then remove the bottle and drain all the water from it.

This is the rear view of the HotFrost cooler

Use a curly screwdriver to unscrew the self-tapping screws that secure the rear decorative panel.

Having removed the rear decorative panel, we can proceed with further repairs.

So, a heating tank with thermal sensors installed on it is located in the upper part of the cooler. In the enlarged photo of the upper part, the tank is located in the lower left corner.

these are the screws used to attach the rear decorative panel of the cooler

On the right stiffener rib, we can find just such a drain plug. It is necessary in order to completely drain the water from the heating tank. Exactly the same plug can be located on the left stiffener (for some cooler models) and serves to drain cold water from the cooling system.

Remove the drain plug cap by turning it counterclockwise. Then remove the rubber seal

Use a 15 ″ wrench to remove the drain plug nut

This is how the cap, rubber seal and drain plug nut look (from left to right, respectively)

We release the drain plug from the bore hole

The tube goes through a hole in the plastic support on which the heating tank is attached

Using a small curly screwdriver, unscrew the heating tank fastening screws counterclockwise

There are only four fastening screws. The difficulty in removing them lies in the fact that there is very little space for a screwdriver, so you need just a small screwdriver, with a total length of no more than 60 mm with a handle

Having released the fasteners, we proceed to dismantle the heating tank itself

We cut off the clamp of fastening of the water supply pipe with pliers

Cut off the clamps of the upper branch pipes with pliers

We remove all pipes supplying water to the tank

We remove the power wire. It is through it that voltage is applied to the heating element. There are only two power wires. Red and black. There is no difference in the disconnection sequence.

We remove the second power wire

We remove the temperature sensors and two ground wires

And the temperature sensors and two ground wires are fastened with such screws. There are only 6 of them.

And this is what a thermal sensor looks like.

And finally, after so many procedures, we got out the heating tank.

As you can see, the seats for the thermal sensors are treated with a special white heat-conducting paste.

This is how the new heating tank from the cooler looks like.

As you can see, the seats for the temperature sensors are clean. They need to be coated with thermally conductive paste for better operation of the temperature sensors.

In the process of everyday operation of water dispensers, a number of malfunctions arise, for the elimination of which it is not always necessary to call a master or service a service center for the repair of coolers.

You can try to fix some breakdowns on the spot, with your own hands, on your own.

Remnants of the protective hygienic cap from the bottle cap prevent water from entering.

Remove the bottle and remove any remaining protection.

If the problem persists, remove the neck by turning it by an angle of 10-15 degrees counterclockwise, check the contents of the distribution tank.

Always manually remove the hygienic protective cap from the bottle cap before placing it on a top-loading machine.

The remnants of the label, getting inside, not only pollute the clean water you buy, but, accumulating, gradually disable check valves, taps and other elements of the cooler.

An “air lock” has formed preventing water from entering the dispenser.

Shake the bottle slightly until you can visually detect air bubbles entering.

The bottle has run out.

Make sure there is water in the bottle.
Install a full bottle.

The pump supplying water from the bottle to the top does not work.

Check the connection of the device to the 220V network.
Turn off and on the cooler, check the operation of the pump.

The water sensor is not working properly.

Try removing and reinstalling the bottle water tube.

Get in the habit of turning off (using the toggle switches located at the back of the case) cooling and heating when the water is depleted and turn it on only after installing a filled bottle and checking the flow of liquid from the taps.

After inserting a full bottle and turning on the toggle switches, wait a few minutes for the heating and cooling lights to turn off.

Microcrack in the walls or bottom of the bottle.

Examine the bottle, try to locate the leak.

In case of defects in the bottle, water should flow out in a thin stream from the gap in the gap with the bottle and the neck.

Usually such a trickle is practically invisible to the eye.
Run a regular paper towel over the top of the cooler (around the neck); if it gets wet, the bottle is to blame.

Carefully remove the bottle from the dispenser and call your supplier.

Polycarbonate containers are used many times, but they do not last forever.

The life cycle of a bottle is on average 50-70 uses.

Any bottle undergoes several checks: during acceptance, cleaning, on the filling line, at the supplier's warehouse, at the delivery warehouse, but alas:
sometimes a microcrack will appear only after delivery.

Aqua Market quickly replaces such bottles ordered from us with full ones free of charge.

The absence of a valve on the drain hole.

Check valve is present and tighten tightly until leak is eliminated.

Drain valves are usually located on the back of the apparatus, in compressor models it is usually 1, in electronic models it is 2.

To avoid damage to property and short-circuiting the wiring, do not install the device near expensive furniture and household electrical appliances.

Such devices are able to cool about 0.6-1 liters (i.e. 3-5 glasses) of water per hour at a temperature of about 12-15 degrees below the environment.

Move the dispenser to a cooler and more ventilated place, remove the body and bottle from direct sunlight - these measures will help remove a few degrees of heat from the water.

Check the working order of the fan installed inside the cooler (on the back of the device) - it should work to blow out air.

There must be an air gap of at least 20 cm between the back wall and the furnishings of your room.

Failure to comply with this rule not only reduces the cooling efficiency, but can also damage the device.

Too heavy use

A typical dispenser is designed to heat up to 92-97 ° C for about 5 liters per hour. The capacity of the internal tank with already heated hot water is usually enough for 2 cups (400-500 ml).

Before pouring the next glass from the “hot” tap, make sure that the heating indicator turns off, otherwise the cooler may not have time to heat the water for you.

Check the presence of current and the position of the toggle switches of the heating and cooling systems

After turning on the machine, wait a few minutes until the heating and cooling indicators go out.

The heating rate is also affected by the formation of scale on the walls of the hot water tank. To remove it, you must periodically clean the cooler yourself or with the help of specialists.

We recommend to carry out such processing at least once every 6 months.

To slow down the scale formation process, it is necessary to use only high-quality drinking water with a low salt content, for example, from the Aqua Market assortment.

We sell spare parts for water coolers and other Aqua Work equipment, which we supply to Russia.

A number of components: taps and buttons, temperature sensors, control boards, heating tanks and cooling systems, compressors and peltier elements are successfully used in the repair of similar coolers AEL, AquaWell, BioRay, BioFamily, Ecotronic, HotFrost, Lesoto, Smixx, etc.

We are constantly updating the reference section and adding answers to questions that are most often encountered by Aqua Market buyers.

We sell spare parts and components for Aqua Work equipment, which we supply to Russia.

Failure to comply with the rules of transportation and storage conditions, technical requirements for the installation and operation of dispensers is one of the most common reasons for their breakdowns.

We will show you how you can make a DIY repair of a water cooler, AquaWork model 36TDN, if it does not cool. Our cooler has electronic cooling, a peltier element and a cooling fan are responsible for it. If your cooler does not cool the water, the reason for this should first of all be looked for in the two above elements. In 90% of cases, the thermoelectric cooler and fan fail.

Unscrew all the fastening bolts on the back of your water cooler case with a regular Phillips screwdriver.

Next, remove the back cover. Now you need to start the cooler with the rear cover removed. When the power is on, we observe that the fan is not spinning, the problem is in it. We remove the old fan, the photo below shows the bolts that need to be unscrewed to dismantle and then change it to a new one.

After installing the new fan, we check its performance with the rear casing removed, everything is fine - the fan is working. Now you can screw the back cover back on.

As a result, we can say that the task of repairing a cooler with your own hands is not so difficult. In our case, we got by with a banal replacement of the fan.

The main thing to understand is that this article is applicable to help you repair an electronically cooled cooler (using a peltier element). If your water dispenser is compressor, then it will be more difficult for you to diagnose and repair yourself, in the event of a breakdown, for example, of the cooling compressor of a cooler.

Air cooling in the refrigerating chamber is carried out by taking warm air and circulating it through an evaporator in the form of a radiator. That is, if the fan in the refrigerator does not work, then the cooling of the food in the chamber is impossible. The fan of the Nou Frost refrigerator is the main element of the technique, providing a uniform temperature throughout the chamber.

A chamber is located behind the inner wall of the refrigerator, which ensures the extraction of heat and moisture from the refrigerating and freezing chambers. The evaporator, heating element and the fan itself are located in a rather small space. During the rotation of the fan blades, the heated air enters the chamber through the gaps between the evaporator tubes, cools down, leaving moisture inside the radiator.

The direction of air flow in all models is organized differently. The technology depends on the manufacturer.

Refrigerator fan

Cold air currents can be supplied in the following ways:

• from the "ceiling" of the refrigerator;
• from the side walls;
• on each shelf separately;
• using a pair of independent cooling circuits (that is, the presence of two fans at once).

In the process of cooling the evaporator with freon, the fan rotates and the required temperature is maintained around the food. After the fan stops, the heating element turns on and the ice flows into a special built-in tray. That is, if the fan stops in emergency mode, it becomes warm in the refrigerator.

The fan is an important component in the refrigerator's operating system. It is built into the electrical circuit of the device and is electronically controlled. Naturally, during operation, the cooling fan of the refrigerator creates a certain noise from the rotation of its blades. On average, the volume is estimated at 35-45 dB. The fan operates simultaneously with the compressor, transferring the cooled air from the evaporator to the refrigerating chamber itself.

If the radiator does not completely thaw in time, then the ice actively builds up and the fan begins to emit a strong crackle and creak when rotating. The increased noise naturally attracts attention. To check if the fan is working, it is enough to bring your hand to it while the compressor is running.

For example, consider the Bosch refrigerator with the Know Frost system. The photo shows a two-compressor refrigerator. In this case, any problems with the fan operation are displayed on a special display in the form of a conditional error code. The most common malfunctions are those associated with the control system. To solve the problem, specialists call all the contacts and find a broken element, which must be replaced later.

There are several main faults that are often found among the popular models of the brands Bosch, Ariston, Whirlpool, Daewoo:

1. It happens that the refrigerator fan motor does not turn off at all. There are few reasons for such a malfunction. It does not stop, firstly, because the compressor is running, and more precisely:

• faulty thermostat;
• the air sensor does not fulfill its purpose;
• freon leaks out and clogs the capillary tube;
• the refrigerator door does not close tightly.

1. When the fan hums a lot, makes a crackling sound or squeak, this is a sign of a malfunction. And there may be several reasons. It is worth noting that the system must not only be periodically defrosted, but also lubricated the engine bearings. When the grease dries up, unpleasant extraneous sounds are heard. More precisely, it is not the fan that buzzes, but the entire refrigerator from vibrations. It is not required to change the fan; sometimes it is enough just to reduce the contact of the equipment with the wall.

Rattling sounds from large appliances may be due to improper defrosting or a clogged drain hole. Ice builds up on the surface of the radiator. Gradually, he begins to clog the cracks between the tubes of the mechanism. The growing frozen water heals the fan blades and it stops working. In such a situation, you need to defrost the refrigerator as soon as possible.