Most of the recommendations for troubleshooting heating equipment in the manufacturer's instructions boil down to one thing: contact a service workshop. Error e10 for Baxi boilers is common, and the method for solving the problem is not difficult. The article explains the procedure in detail user when the 10th fault code appears.
Error E10 on the Baxi control panel
Gas boiler baxi error e10
Error baxi e10
(or on some baxi models error 10 e) informs the user that the minimum pressure switch of the heating system (pressostat) has been activated. This device is designed to monitor the presence of coolant in the heating circuit. The initial position of the relay is open; when the water pressure in the heating system increases above 0.5 bar, the contacts close and the control board allows the boiler to start. Therefore, the opposite is also true: if the pressure in the system is less than 0.5 bar, we get error e10 and the boiler stops.
Why doesn't the device restart?
Failure to restart usually indicates the presence of air in the system or internal elements of the boiler.
The solution to the issue may be to bleed air from the circulation pump, which is done by loosening the central screw of the device . The air will hiss out, and when water comes out, you need to tighten the screw again until the coolant stops escaping. After this, restart the boiler.
Error e10 how to fix?
The main reasons why error e10 appears on Baxi boilers
:
- low water pressure in the heating circuit
- poor contact, or lack of contact between the control board and the sensor (relay)
- malfunction of the minimum pressure switch (pressostat)
Therefore, first of all, it is necessary to check the pressure gauge readings - the arrow should be in the green zone.
In most cases, boiler error Baxi E10
eliminated by the make-up valve, i.e. filling the system with coolant.
But if the error appears again within a few hours (maybe several days), then it is a cause for concern. In this case, there is most likely a coolant leak. The leak can be anywhere: it can be a primary heat exchanger, a hydraulic pump, an emergency relief valve, a system make-up valve, damaged gaskets and seals, and much more often in the heating system itself. Coolant leaks are usually diagnosed by visual inspection of hydraulic components and connections.
Bypass in a private house
An article about how to invigorate the heating system in a private home
It was built approximately at the beginning of 2000 with an area of about 110 sq. m.
has a gravity heating system of the “Leningradka” type.
boiler of the same period with high gas consumption without automation. Installed in the basement of the house. The monthly payment reaches 5-7 tr.
When cold weather set in, I seriously began to think about improving the system in order to increase efficiency and not pay so much.
The solution is this - you need to install a pump to accelerate the liquid so that hot water is supplied directly to the heating radiators without waiting for it to get there by gravity.
Therefore, I decide to do everything myself.
After scouring the internet and talking to sellers of plumbing parts. I bought all sorts of different things from them and started.
First you need to draw everything. to understand for yourself what it will look like.
The budget is zero, there is no experience, the cold weather is pressing. I went to specialized offices and the prices were not encouraging. The situation is aggravated by the fact that pipes with a diameter of 50 are used in the house. The diameter is large, which means all the elements are expensive.
boiler without bypass with gravity heating system pipes with a diameter of 50
I made the first version of the bypass using purchased elements. It seems so, but there are too many connections and details.
first bypass option.
I decided to reduce them as much as possible. In the end, this is the second option:
I measured it and figured that everything would fit.
assembly, welding
Then I assembled it on the floor. It is important to do everything completely and prepare it in advance so that you don’t have to run to the store because of some little thing.
And now the moment of insertion has come. On the street +5 you need to drain the water and cut out a piece of pipe. Households are shaking from the cold under two blankets.
As a result, I drained the water into the garden and sawed off the pipe with a grinder. The process is not simple; when sawing, internal tension in the pipes can pinch the disk and it will fly into fragments in different directions. (Take care of yourself, treatment is expensive now) I sawed in a motorcycle helmet with glass.
I adjusted it to length and inserted the finished bypass into the gap between the pipes.
I grabbed it with welding and that was it. Passed out to sleep.
The next day he continued. I thoroughly scalded it and screwed the Mayevsky valves into the radiators.
started filling the system with water. I see dripping in the top seam. I drained it again, scalded it again (it was not easy to do, the head and mask did not fit under the ceiling) But in the end everything worked out. I filled the system again, turned on the boiler - it was warm) turned on the pump and it was absolutely beautiful.
I rose from the basement in the dark with a flashlight (at three o’clock in the morning everyone was sleeping, shivering from the cold), with a hiss I let the air out of the radiators and the house became warmer.
Cool. I no longer wanted to start it by gravity, the pump is a thing)
further about savings, due to the fact that water began to move faster through the pipes. therefore the house heated up faster. Moreover, the winter was kind this year, it was warm 0-1, just a couple of days the temperature was - 13.
What does low blood pressure mean and what needs to be done?
For normal operation of the heating system, so that the coolant can circulate normally and there is no overheating, the pressure must be normal. It is for this purpose that a special sensor controls it in the boiler. Also, the pressure in the heating system is controlled visually - with a mechanical pressure gauge (see photo). In most cases, this problem is encountered by users who have just started using the BAXI boiler. So what to do:
- Examine the readings of the mechanical pressure gauge. If the arrow is in the red zone, go to step 2
- We find the tap water make-up tap at the bottom of the boiler. Depending on the boiler model, it can be located in different places, but this place is definitely at the entrance to the boiler water pipe and probably next to the pressure gauge. The location of the system filling valve must be included in the instructions for the boiler! In BAXI boilers, the system filling valve can be red or black with a square cross-section (see photo BAXI EcoFour), blue or black with a round cross-section.
- Once the feed tap has been found, you need to fill the heating system to the required level. We open the tap (turn it counterclockwise), usually you will immediately hear the noise of water entering the boiler; as soon as you hear the sound of water, you don’t need to turn it further - we watch the pressure gauge needle. As soon as the pressure gauge needle has risen to the green zone - more than the 1 bar mark - close the tap by turning it clockwise (do not over-tighten it - just close it).
- As soon as the pressure in the boiler is raised to a normal level, error e10 should disappear and the boiler will automatically start working.
We remind you that a frequent loss of pressure in a closed heating system indicates a possible coolant leak. Frequent means more than once every 6-12 months. Constant replenishment of the boiler will negatively affect the service life of the main heat exchanger, and this is the most expensive part in the boiler (30-40% of the cost of a new boiler). This is due to the fact that tap water contains various impurities of salts and minerals, which at high temperatures will be deposited on the walls of the heat exchanger and reduce its permeability and efficiency.
Decoding
Error E10 is generated by the electronic unit of the Baxi boiler when the OB pressure switch is triggered . Occurs when the pressure in the heating circuit drops below a critical value (0.5 bar) . The relay contacts open, and the automatic protection system stops the unit upon an emergency signal. Knowing this, it is not difficult to understand the method for eliminating error e10.
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Procedure
Step 1
Check the readings of the control device
If the boiler pressure gauge needle leaves the green sector (turns to red), bring the coolant volume to normal . The feed tap of any version of Baksi is located at the bottom of the heating installation, next to the connection pipe for the cold water pipe. It opens counterclockwise until the characteristic noise of incoming liquid appears. At the same time, the pressure is monitored using the Baksi boiler pressure gauge. When the arrow moves to the green zone (˃1 bar), error e10 will disappear , the tap must be closed: the unit will start on its own.
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On a note! The pressure in the “cold” system when filled from cold water should be 0.5 bar less than in the expansion tank.
Step 2
Loop Condition Assessment
Pressure drop in a closed system , error E10 is caused by a leak. By inspecting the facility, it is easy to identify the problem area of the highway by wet spots on the floor. Particular attention should be paid to the joints. With regular hydraulic shocks, this is where the depressurization of the circuit occurs. Pipes, radiators, and equipment included in the heating circuit are subject to inspection.
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If error e10 of the Baksi boiler appears infrequently (once every few months), but regularly, the leak is insignificant. A difficult case - a microcrack cannot be detected by inspection. Small droplets of liquid flowing from it do not have time to fall to the floor - they evaporate. To determine the location of the defect, you need to wait until the pipes and radiators cool down. After some time, a stain will appear under the damaged area.
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Step 3
Pressure switch testing
If filling the system does not remove the E10 error, then its probable cause is the pressure switch . The sensor in Baksi boilers is initially set to 0.45 bar. When the pressure in the heating circuit increases, its contacts close and the board receives a switch-on permission signal. Accordingly, a drop in pressure leads to a break in the circuit, and error E10 is issued, blocking the operation of the boiler in emergency mode.
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On a note! On thematic forums there are recommendations from “experts” regarding the elimination of error E10: bypass the pressure sensor. The code will disappear, but there is no need to talk about the safe operation of Baksi after such a “repair”. A pressure switch excluded from the protection circuit will not react if the coolant volume critically decreases. As a result, overheating, failure of the heat exchanger and other structural parts. The cost of the device is about 20% of the price of the boiler. There is little benefit, since the problem is not completely solved. But the consequences are unpredictable, including significant material costs to eliminate them.
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Step 4
Checking the expansion tank
Users forget about it, but it is this special tank that often causes error e10. The cavity of the tank is divided into 2 compartments, one is filled with nitrogen or air under pressure in the range of 0.8–1.2 bar. Non-compliance with this value is reflected in the correct operation of the system, as a result, error e10 is displayed: possibly due to a crack in the body, rupture of rubber goods or its adhesion to the wall of the vessel (if the tank has not been used for a long time). The defect can be determined by examining the “pear” by removing it from the tank. Membrane models RB cannot be repaired - only replaced. If the air pressure in the tank compartment is low, bring it to normal using a car pump.
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Step 5
Board diagnostics
This is the last probable reason for the appearance of error e10 in the Baksi boiler. You cannot do it on your own, no matter what home-grown experts say. This is the case when you need to contact a service center. On-site repair consists of replacing the module and does not require much time. Full electronics testing is carried out on a bench in the workshop.
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If the pressure is normal, but still - error e10?
The control board of the gas boiler monitors the pressure with a special sensor - a pressure switch. It does not measure the pressure value, but is set to a certain value (for baxi boilers 0.45 bar). The sensor has two contacts and, accordingly, two positions. If the water pressure in the boiler is less than 0.45 bar, the contacts are open, if more, they are closed. Therefore, checking the serviceability of the sensor comes down to measuring the resistance on the contacts. To do this, you need to turn off the power to the boiler, remove the wires from the sensor and use a device (multimeter) to check the resistance (“ring”). If the readings do not correspond to the described logic, it is likely that the sensor needs to be replaced.
We do not recommend excluding this sensor from the security system by permanently closing the contacts!
BAXI error e10 problem with expansion tank
For all series of BAXI boilers, the system has an expansion tank, which serves to compensate for the expansion of the coolant as a result of heating.
The device is a container made of two metal panels, separated by a rubber membrane: coolant on one side, air or nitrogen on the other. The filling pressure of the air chamber is 0.8 bar. Accordingly, it may turn out that the pressure in the expansion tank may be less or more than the nominal one, which will lead to incorrect operation of the heating system -
an increase or decrease in pressure in the hydraulic system and, as a result, boiler error e10. Checking the pressure of the expansion tank is not so difficult - it has a special valve through which, if necessary, the pressure can be adjusted by pumping air with a regular car pump. How to do this correctly is the topic of a separate article.
Baxi boiler error e10 what to do if you cannot independently check the boiler for leaks and do not know what an expansion tank is - it is better to call a specialist.
Also on our website you can download instructions for many models of Baxi boilers and watch an educational video in which one of the users independently eliminates error e 10 on a Baxi Luna boiler:
If you are interested, we have posted an article on our website with a complete list of error codes for Baxi boilers.
Additional Information
To prevent breakdowns and errors from appearing, you must follow certain rules . It is important to take the following into account:
- For the system to work well, you need 170-250 V. If the voltage is lower, the device will turn off, but if the voltage is higher, the varistor will burn out.
- Gas boilers are very sensitive to power surges. Experts strongly recommend purchasing additional devices to stabilize it.
- To connect you need to create a separate functionality.
- If a phase-dependent type of boiler is used, you need to ensure that the phase coincides with zero.
Baksi heating systems are excellent equipment for the home. When operating, it is very important to follow the instructions and follow the recommendations given by the manufacturer. In case of problems, problems should be resolved in a timely manner. In case of serious damage, there is no need to try to restore the operation of the unit with your own hands; it is best to contact a professional.
In this video you will learn how to repair boilers:
