Malfunctions of Ariston water heaters, error codes

Boilers “Ariston” are popular among consumers. But they are not immune from breakdowns, despite the ease of use and ease of installation. In the article we will talk about the malfunctions of Ariston water heaters. You will learn how to detect a breakdown, repair or replace a part.

Typical malfunctions of Ariston heaters

Why is the technology not working? The answer to the question will help to find diagnostics or the boiler itself. Modern models are equipped with control boards that regulate the operation of all nodes in the system. When a breakdown occurs, a fault code is displayed on the display. If there is no display, then the indicators indicate an error (flashing).

Deciphering the symbols will help solve problems with the operation of the heater.

Error codes for Ariston boilers: table

Since the boiler is simultaneously connected to electricity and water communications, problems can also concern the network or the safety valve and hoses.

Let’s analyze the main breakdowns of the Ariston heater:

• The tank leaked.
• The device does not turn on.
• No water heating.

Symptoms of a malfunction can be:

• Prolonged heating.
• Noise during work.
• Water with an unpleasant odor and cloudy color.
• Quick turn on and off of the boiler.

What to do and how to fix problems, read below.

Repair by own hands

Some problems can be fixed on your own. The main thing is to follow our recommendations.

The water heater does not turn on

First of all, check if there is voltage in the network. You can check this with a screwdriver with an indicator: it should light up on the “Phase”, but not on “Zero” and “Earth”. If the cable insulation is broken, repair is not recommended. It is better to immediately replace the element, but make sure that the new cable matches the old one in terms of parameters.

To diagnose the outlet, connect another device. If it also does not work, the socket is defective. It is best to call an electrician for replacement.

A short circuit or lack of grounding leads to a permanent shutdown of the RCD. The breakdown of the heating element on the body also leads to similar consequences. In this case, the element is diagnosed and replaced.

The RCD could be broken. To confirm your guesses, press RESET on the instrument panel. Is the light bulb glowing? So food is being served. Then press TEST and then RESET again. If the indicator lights up again, the RCD is working normally.

Boiler does not heat water

Check the tightness of the contacts between the plug and socket. If everything is in order and the voltage is supplied normally, you need to check the heating element. Do you have a storage boiler? Then drain the water first. A volume of water of 50-80 liters can be removed through the faucet. 100 liters or more is best drained with a valve.

Remove the case from the wall. Now you need to pull out the flange to which the heating element is attached. In Ariston models of 80 liters, the flange fastens with only one bolt. In other cases, you will have to unscrew 5 bolts.

Disassembly is done like this:

• Scroll the flange along the axis.
• Take it out of the tank.

• Heater diagnostics is carried out with a multimeter. Read more in the article: “Replacing the heating element in the water heater”.
• If the multimeter needle moves, the part is good. Is it in place? You need to put in a new one.

Have you noticed that the water heats up longer than usual? This does not mean that the heater is broken. Perhaps the reason is scale: over time, it grows in a thick layer and interferes with normal heat transfer. Clean the element with special means.

Lack of heat may indicate a broken thermostat. Perform a restart on the boiler panel. If the appliance cannot be restarted, the thermostat is defective.

A tester will help diagnose a breakdown more accurately:

• Set the multimeter to the maximum position.
• Attach the probes to the thermostat contacts (located next to the heating element).
• Does the arrow on the screen move? The device is working.

There is another option:

• Heat the thermostat with a lighter.
• Set the multimeter to “minimum”.
• Attach the test leads to the contacts.
• If the arrow moves away from zero, then the part is functioning normally.

In the event of a malfunction, the thermostat must be replaced. Disconnect the wiring from the part, pull it out of the hole.

Installation is carried out upside-down.

tank leaking

Found a leak? Carefully inspect all connections, hoses. If everything is in order, you need to inspect the tank itself. A leak can occur as a result of strong water pressure. If the body is swollen, check and replace the relief valve.

Destruction magnesium anode causes tank corrosion. Therefore, it is recommended to replace it once a year.

If the tank “ran”, it will not be difficult to disassemble it for verification. Open the top cover of the product and look inside. Are the walls and heater covered with scale? We need to clean the equipment. Pull out the heating element and the anode (they are located nearby).

Carefully clean scale from all surfaces and walls of the tank. Then rinse with a solution of the Antinakipin type. Install the heater and a new magnesium anode in the cleaned tank.

The accumulation of scale leads to an unpleasant smell of water, its turbidity.

The gasket that secures the parts from below can also leak. Inspect it and replace it.

All these works can be done independently. Important: disconnect equipment from the network before starting work.