Guides4Homeowners Useful Information & Guides
Is your Ferroli boiler on the blink? It’s common that ever so often your boiler might display an error code, it happens and it doesn’t always mean that you’ll need to call a repairman or need to replace the boiler, a lot of the errors can be fixed simply with a reset.
Ferroli boilers are typically very reliable, but they do from time to time display error codes, just like any boiler. In this article, we’ve had an in-depth look at everything in relation to Ferroli errors from how to reset it to each individual error code and what it means.
As you can image, there are a lot of different Ferroli boilers, so this article is rather large. You can navigate to the section that best suits your query by clicking the below links:
- Ferroli boiler error code guide
- Most common Ferroli fault codes
- Ferroli boiler fault code list
- Get a boiler repair quote
Ferroli boiler error code guide
Have you had an issue with your Ferroli boiler? In this section of the article, we’ll be touching on a few common problems and fixes before we dig into the individual codes.
How do you reset a Ferroli boiler?
Most Ferroli boilers have an easy to use reset switch, it should be located on the front of the boiler & you simply hold it down to reset the boiler. Although some Ferroli boilers have it in different locations.
All boilers will have a reset button and in most cases you simply have to push and hold the button for 10 seconds, wait for the boiler to do it’s thing and ignite. Make sure that you don’t keep clicking the button over and over as this can cause further issues with the boiler and lead you to having to call a boiler engineer.
You can tell when the boiler has fully reset because it should have the flame ignited and hopefully your error code would have disappeared.
What pressure should a Ferroli boiler be at?
Your Ferroli boiler, no matter what type it is, should have a pressure between 1.0 and 2.0 bars. If it drops below the 1.0 mark, you will then need to repressurise it. If this continually happens, it often means that you have a leak somewhere in your system, which you can try to locate yourself or call a boiler engineer.
How do I repressurise a Ferroli boiler?
All boilers work the same when it comes to repressurising them, it’s quite simple to do and you should be able to DIY. Here’s a quick step by step guide on what you should do:
- Completely switch the boiler off and let it cool down
- Check that both ends of the filling loop are securely attached
- There should be two valves, open them & allow it to fill with cold water – it should make a noise and you should see the pressure rise
- Close both valves & turn the boiler back on
- The boiler may need resetting
How long should a Ferroli boiler last?
Ferroli are a reliable manufacturer of boilers & it should last the test of time as long as you regularly service and maintain it. A boiler that is regularly serviced should last you anywhere between 10 and 15 years, so if your boiler is only a few years old and has a fault, it’s often just a reset or repair rather than a replacement job.
Most common Ferroli fault codes
Although there are several different fault codes your Ferroli boiler can display there are a few that regularly crop up time and time again. Before reading through the rather large list of fault codes in the next part of this post, we’ve pulled together some of the most common & how to fix them for you below to save you some time:
- FH Error Code: FH can be one of two things, the flame detection electrode or a faulty PCB – you’ll need a boiler engineer but the later of the two is an expensive fix!
- D1 Error Code: This is often an issue with the diverter valve, and will require a boiler engineer but it should be a relatively quick and inexpensive fix.
- AO1 Error Code: This is an ignition error, it can be caused by quite a few things such as an electrode fault, excessive condensation, little to no gas supply or a power fault. You should check your gas supply and reset the boiler, but if the problem persists you will need to call a boiler engineer.
- A51 Error Code: The A51 error is a poor combustion fault, and unfortunately this is another one where you will need to call a boiler engineer.
- T5 Error Code: This is to do with the PCB, but it shouldn’t need replacing. Simply hold down the reset button until T5 appears, press reset a further time and then you should see it say P01 after which press the button for heating temperature and that should fix the issue.
Ferroli boiler fault code list
In this section, we’ll go into depth on all the various fault codes, a description of the issue and what you can do about it. Each Ferroli model series has a different set of fault codes, so we’ve split it out in that way.
So to find your fault much quicker, click on what Ferroli boiler model you have:
Ferroli Bluehelix Tech
The Bluehelix boiler range by Ferroli is focused on quality and longer life span, with it containing fewer components there’s a lot less that can go wrong, the cost of replacing parts on this boiler is generally cheaper as well. That being said, here are the main fault codes of this type of boiler:
| Fault Code | Description of Error | The Possible Cause | Advised Solution |
|---|---|---|---|
| A01 | The burner is not igniting | There is no gas or an issue with the ignition - if the latter it could be the detection electrode, with detection electrode, faulty gas valve or poor gas pressure. | Ensure that your gas is working fine & reset the boiler. If the error still occurs, call a boiler engineer. |
| A02 | The burner is off but the flame signal is present | PCB or electrode error | Both of these issues will require you to call a boiler engineer. |
| A05 | An issue with the fan | The fan could be damaged, out of balance or no power supply | This will require you to call a boiler engineer. |
| A06 | After the ignition phase there is no flame | Ionisation electrode fault | This will require you to call a boiler engineer. |
| A14 | The flue extraction duct has shut off for a safety issue | This happens if the fault F07 has generated 3x in the last 24h period | This is a safety feature for repeated fault code issues, call a boiler engineer. |
| A23 through A26 – F15, F20, F21, F40, F47, F50, F51 & F53 | PCB parameter fault | Parameter setting on the printed circuit board is wrong | This will require you to call a boiler engineer. |
| A54, A55 & A63 | AGC01 Fault on the PCB | PCB fault | This will require you to call a boiler engineer. |
| A62 | The PCB board isn't talking to the gas valve | The valve is damaged and might need replaced | This will require you to call a boiler engineer. |
| A64 | Maximum number of resets consecutively has been reached | You've reset the boiler too many times in a row | Leave the boiler for a while, try reset it in a few hours time |
| F07, F14 & A07 | The gas flue has reached it's max temperature and is shutting down for safety | Excessive temperature in the flue | Turn the boiler off, let it cool down and start it up again. If the problem persists call a boiler engineer. |
| FO8 & A08 | Protection against excessive temperature | Damage to the heating sensor element | This will require you to call a boiler engineer. |
| FO9 & A09 | Protection against excessive temperature | Damage to the return sensor element | This will require you to call a boiler engineer. |
| F10 & A10 | Error with the flow sensor | The sensor is damaged | This will require you to call a boiler engineer. |
| F11 & A11 | Error with the return sensor | The sensor is damaged | This will require you to call a boiler engineer. |
| F12 | Error with the DHW sensor | The sensor is damaged | This will require you to call a boiler engineer. |
| F13 & A13 | Error with the flue probe | The probe is damaged | This will require you to call a boiler engineer. |
| F34 | Electrical supply issue | The supply to the boiler is under the recommended 170V | This will require you to call a boiler engineer. |
| F37 | The water pressure to the boiler is incorrect | The pressure is too low for the boiler to operate | This could be an issue with a damage, blocked or disconnected water pressure switch, call a boiler engineer. |
| F39 | Error with the external probe | The probe is damaged | This will require you to call a boiler engineer. |
| F41 | ELTA T protection has been activated | The heating sensor has been damaged | This will require you to call a boiler engineer. |
| F42 & A42 | The sensor control protection has activated | The heating sensor has been damaged | This will require you to call a boiler engineer. |
| F43 | Intervention of the exchanger protection | There's air in the system causing no system water circulation | This will require you to call a boiler engineer. |
| F56 & A56 | An error with the callibration | An electrode is damaged or not correctly positioned | This will require you to call a boiler engineer. |
| F61 & A61 | PCB AGC01 Error | PCB Error | This will require you to call a boiler engineer. |
| F66 | Not loaded correctly | The firmware has not loaded correctly | Reset the boiler |
| F67 | - | Boiler chip card service key connected | Reset the boiler |
| F68 & A68 | Fault with the boiler chip card | Error loading the boiler chip card | Reset the boiler, but if the error persist call a boiler engineer. |
Ferroli Modena HE Combi
This is one of their largest ranges and most commonly used in homes, they generally get good reviews and are a trusted range. There reliable and easy to maintain, they also have no plate to plate heat exchanger/diverter valve, which means less to go wrong. Here are the error codes this model series can display:
| Fault Code | Description of Error | The Possible Cause | Advised Solution |
|---|---|---|---|
| A01 | The burner is not igniting | There is no gas or an issue with the ignition - if the latter it could be the detection electrode, with detection electrode, faulty gas valve or poor gas pressure. | Ensure that your gas is working fine & reset the boiler. If the error still occurs, call a boiler engineer. |
| A02 | The burner is off but the flame signal is present | PCB or electrode error | Both of these issues will require you to call a boiler engineer. |
| A03 | An issue with the fan | The fan could be damaged, out of balance or no power supply | This will require you to call a boiler engineer. |
| A04 | Fault with the flue gas | This happens if an F07 fault has happened 3x in the last 24h period | This will require you to call a boiler engineer. |
| A05 | Error with the fan | The signal from the tachometer has been interrupted for over an hour | Reset the boiler, if the error persists call a boiler engineer. |
| A06 | After the ignition phase there's no flame | This could be due to to a detection electrode, unstable flame, incorrect valve offset or flue gas, so a lot of things! | This will require you to call a boiler engineer. |
| A41 | Disconnected flow sensor | The positioning of the flow sensors are wrong | This will require you to call a boiler engineer. |
| A42 | Fault with the flow sensor | The flow sensor has to be changed | This will require you to call a boiler engineer. |
| A61 | The gas valve and controller aren't talking to each other | There could be damage to the valve | This will require you to call a boiler engineer. |
| A62 | Internal error with the controller | Controller part 041049G has errored | This will require you to call a boiler engineer. |
| A63, A64 & F66 | DBM12 fault | Fault with the controller | This will require you to call a boiler engineer. |
| F07 | The fume has got to excessive temperatures | Excessive temperature for 2 minutes or over | Let it cool down & reset the boiler |
| F10 | Fault with the flow sensor | There is possibly damage to the sensor such as wiring issues or it's short circuited | This will require you to call a boiler engineer. |
| F11 | Fault with the return sensor | Sensor wiring broken or shorted | Check the wiring issue if you're competent. If not call a boiler engineer. |
| F12 | DHW = Domestic How Water sensor fault | The sensor is damaged | This will require you to call a boiler engineer. |
| F13 | Fault with the exchange probe | Broken or shorted wiring | This will require you to call a boiler engineer. |
| F14 | Issue with the fan | The fan is damaged or covered in debris | If you can see it and clean it do, but if not this will require you to call a boiler engineer. |
| F15 | Electrical supply problem | The supply to the boiler has dropped below 170V | It's an electrical fault and you will need to call a boiler engineer. |
| F34 | Mains electric irregularity | Issue with the electric supply | It's an electrical fault and you will need to call a boiler engineer. |
| F35 | The systems water pressure is incorrect | Either the pressure is too low, or the sensor is damaged | Check if the system needs filling, if not call a boiler engineer. |
| F37 | Fault with the external probe | It's damaged or short circuited | This will require you to call a boiler engineer. |
| F39 | Activation of the exchanger protection system | Potential issues include no circulation through the system, damaged sensor or air in the system | This will require you to call a boiler engineer. |
| F43 | Fault with the flow sensor | The sensor is damaged | You need to change the sensor which will require you to call a boiler engineer. |
| F52 | 041049G0 fault with the controller | Internal controller error | It's an electrical fault and you will need to This will require you to call a boiler engineer. |
Ferroli Modena HE System
This model series is the same as the above, but the system version as opposed to combi. Just like the combi model, these are known as reliable and trusted. Here are the error codes that can be displayed on Modena HE system boilers:
Modena system boilers have the same error codes as the combi version with the exception of the part numbers being slightly different.
Ferroli i Series
The i series boilers are any boilers in the range that are simply called i[kw number]. These are generally compact boilers and are reliable and extremely efficient. There generally a bit cheaper than other models and therefore might not last quite as long. Here are the error codes you can get from the i series boilers:
| Fault Code | Description of Error | The Possible Cause | Advised Solution |
|---|---|---|---|
| A01 | The burner is not igniting | There is no gas or an issue with the ignition - if the latter it could be the detection electrode, with detection electrode, faulty gas valve or poor gas pressure. | Ensure that your gas is working fine & reset the boiler. If the error still occurs, call a boiler engineer. |
| A02 | The burner is off but the flame signal is present | PCB or electrode error | Both of these issues will require you to call a boiler engineer. |
| A03 | Damage to the heating sensor | There's air in the system or poor water circulation | Bleed your radiators & try restart the boiler. If this doesn't fix it, call a boiler engineer. |
| A06 | After the ignition phase there's no flame | This could be due to to a detection electrode, unstable flame, incorrect valve offset or flue gas, so a lot of things! | This will require you to call a boiler engineer. |
| A09 | There is an error with the gas valve | Error with the gas valve or a wiring disconnection | This will require you to call a boiler engineer. |
| A15 | The Fault F05 has occurred over 5x in the last 24h | The air pressure switch is likely the issue | This will require you to call a boiler engineer. |
| A23 | Error with the card parameter | The setting needs changing | This will require you to call a boiler engineer. |
| A24 | Error with the card parameter | The setting needs changing | This will require you to call a boiler engineer. |
| F04 | Wrong setting on the card | The setting needs changing | This will require you to call a boiler engineer. |
| F05 | Contact error with the air pressure switch | There is something wrong with the flue it's not the right size or obstructed | This will require you to call a boiler engineer. |
| F07 | Error with the air pressure switch | On activation of the fan the contacts have closed | Reset the boiler |
| F10 | Error with the delivery sensor | Disconnected or shorted wiring | This will require you to call a boiler engineer. |
| F11 | Error with the DHW sensor error | Disconnected or shorted wiring | This will require you to call a boiler engineer. |
| F34 | The supply voltage has dropped below 170V | Issue with the electric supply | It's an electrical fault and you will need to call a boiler engineer. |
| F35 | Mains electric frequency is faulty | There's an issue with the electric supply | This will require you to call a boiler engineer. |
| F37 | Water pressure error | The pressure is either too low or the switch is damaged | Reset the boiler, if it doesn't fix it, call a boiler engineer. |
| F43 | Intervention from the exchanger protection | Air in the system or no system water | Fill the system - but if that doesn't fix it then call a boiler engineer. |
| F50 | DBM23B controller error | Internal error with the controller | This will require you to call a boiler engineer. |
| F51 | DBM23B controller error | Internal error with the controller | This will require you to call a boiler engineer. |
Get a boiler repair quote
Have you looked into your fault code and determined that you might need an expert to come to take a look? If you use the form below we will get in touch with local Ferroli boiler repairmen, tell them about the job and find the best person for the job for you.
Take all the hassle out of comparing various different boiler repairmen & let us do it for you by using the form below:
