BIASI Gas Boiler Troubleshooting

Broken gas boiler Biasi Nova Parva 24s. NTC is not working correctly, namely: water gets worse and worse, despite the fact that the "5" mode is set. At the initial start-up, boiling water pours from the tap for the first 10 seconds, after that the device reduces the intensity of the flame, and the water cools down strongly (no more than 30 ° C). Recently, a primary heat exchanger has been replaced, and a secondary one has been cleaned. The unit has been in operation for 6 years. With what this problem can be connected?

You should check the NTC temperature sensor. There may be a problem in it.

In the wall boiler Biasi Delta 24s, when the heating is switched on, water boils. At the same time, when the device is operating on the DHW circuit, there are no problems. The replacement of the board did not solve the problem. I noticed that if it is set to "7" or "3" modes, then the heating works as expected. But if you include any other, there is a boil. How to solve my problem?

You probably got stuck on a three-way valve. Check it out.

And when trying to start a gas boiler Biassi on the burner does not appear a flame. At the same time, the display shows error E01. What does it mean, and how to repair my cauldron?

This error indicates that you do not have a flame at startup. Most often, such a problem occurs when there is no gas in the combustion zone, it is also possible that the ignition electrode fails. Still need to pay attention to the integrity of the cable going to the electrode. Make sure that the gas shut-off valve is open. Then press the "reset" button.

It seems to me that Biasi Rinnova 24 double-circuit boiler is incorrectly programmed, since its operation is unstable. Tell me, how can I eliminate it?

You should conduct diagnostics of the device, especially pay attention to the automation. Check how the main executive nodes work in different modes. You may need to replace the filter.

The following problem has arisen on the Biassi gas boiler: the flame disappears constantly, while the display shows an error indicating a problem with the burner. Also, the unit does not maintain constant pressure, we top up every day. What can be done with it?

You need to diagnose the device to find out the cause of the failure. Also pay attention to the expansion tank. Make sure that there are no cracks in the heating system and that the connections are tight. Check the heat exchanger for holes. All this will help to establish the place where the coolant flows. After this, the burner must be re-adjusted.

When the gas boiler Biasi Binova is turned on, a fan is started, but the ignition does not go. I suspect that a fuse burned somewhere. How can I find it?

If you correctly described the nature of the problem, then it's not a safety feature. Although, if you make sure that they are working, it will not be worse. Your problem is most likely related to the breakdown of the minimum water flow sensor, and the traction relay may be faulty.

Recently, the boiler has become very often spontaneously extinguished. So it was until today, when it just did not start. And on it red lights burn. Despite the fact that the gas tank is not full, the gas is present in it. I checked it by turning on the gas stove. What could break down?

Since the unit is running on liquefied gas, it is very important for you to ensure that the fuel supply pressure is not lower than the recommended one. To operate the gas cooker requires much less pressure, so this is not an indicator. If the gas is supplied with insufficient pressure, the sensors do not see the flame, and the burner is turned off. You should fill the gasholder, and only after that start the boiler into operation. I think that this will solve your problem.

I have a bi-loop boiler Biassi Rinova. The last time, every two days, you have to pump up pressure, as it becomes below the minimum allowed. I went to the service department, but they advised me to look for a place where depressurization occurred. I inspected everything, but found no leakage. What should I do?

You should check the expansion tank. When there is no pressure in the heating system, it must be 0.8-1.0 bar. To check, you should disconnect the device from the system and discard the water. After this, you can pump the expansion tank. It must also be ensured that the safety valve is defective. Go through all the connections, and there, where they get wet, change the gaskets.

On my wall-mounted boiler, Biasi Delta, the following problem occurred. When I turn it on (it does not matter in what mode: heating or NTC), the circulation pump starts, then the air intake fan starts working. And then everything turns off. After a while everything repeats, and so on the cycle. He used to light up sometimes, but now he does not. However, it does not show any error. How can I fix this defect?

You should check the manostat, and how to purge its tubes.

The pieza does not work on the Biassie cauldron. Is it a programmer or a coil?

You need the coil to receive voltage according to the wiring diagram.

The Biasi model. After a short time after start-up, it stops the burner and an error E05 appears on the display. I checked the chimney, it is not contaminated. Tell me, how can I eliminate the breakdown?

You should install a new pressure switch.

The supply of hot water does not work in the gas boiler in Biassi Delta. When the tap is opened, the device does not show any errors, but it does not work either. I checked the performance in two modes: summer and winter - there is no difference. I tried to configure it using the main controller, but it did not work. I tried to open the plug in the socket, because I thought the problem was in the phase. But it did not help either. In addition to the above, the unit still occasionally displays error E03. Its decoding is not in the manual. But the error itself leaves after a while. What should I do?

You should install a new hot water sensor. Also you can repair it. Most likely a breakdown in its electrical part. After disassembling the sensor, you will see that there is a float inside, which moves when the water flows through the device. It is he who gives the signal to the device through the Hall sensor. Try to clean it. When installing it back be careful, and do not confuse the side.

On the gas boiler Rinnova constantly appears error 06. I can not find what it means. How to be?

You should replace the sensor NTC heating.

I plan to install a room thermostat on my Biasi boiler. Please recommend the model.

You should pay attention to those sensors that work only to short circuit and open the circuit. But when setting, take note of the nuance. When the thermostat is open, the heating is active. When the thermostat is closed, the unit is switched off.

The two-circuit Delta 24s boiler itself, without any command, starts to work on the heating mode, although at the moment it should work on the NTC. Sometimes, he even begins to work himself out of the "pause" mode. I tried to find a temperature sensor located at the entrance of the device, but it did not work. Although it seems to me that the problem is not in it. Is it so?

Perhaps the problem is still in the sensor. He can give a command to the unit for self-defrosting.

Broken wall pot Biasi Binova. A few years ago it started normally, but after heating up to the set temperature, an error E07 appeared. However, this did not prevent him from working as expected. After the cooling of the coolant, the error itself was discarded. Yesterday I ran it again, and error 07 lit up almost immediately. But the device began to work. But I can not look at the set temperature, or somehow affect it. Carefully read all the instructions, but did not find an error with this number. Tell me if the replacement of the hot water temperature sensor can solve my problem. And another question, the sensors for heating and hot water supply of one type? Can I change them?

Yes, these sensors are interchangeable.