2024 Alpha Boiler Error & Fault Codes
Error codes are frustrating nuisances that frequently occur when you don’t have the proper information to diagnose the issue quickly. Knowing a little bit about what they mean, however, can be quite valuable in ensuring that your Alpha boiler is back up and running in no time - without incurring unnecessary expenses.
As your Alpha boiler will communicate any diagnostics issue you may have to the control panel, you can then diagnose and fix a problem more easily. If an error occurs, your boiler will display a fault code. This error could be indicating a potential risk to your home which is why it is not only important to identify the code, but to resolve it promptly.
Here, we’ll look at some of the most common alpha boiler error codes and what they mean. Of course, these only apply to Alpha boilers but it’s still worth knowing because if you spot the same error code on another brand of boiler, then it could be something that your installer can fix without having to call in outside help.
E-Tec Combi Boiler Error Codes
To repair and service an E-Tec Combi Boiler you'll first need to understand the error codes. In the event of problems with your Alpha Boiler a flashing error code on the front panel can help you to diagnose the fault. Below is a list of common E-Tec boiler error codes and what they mean:
| Fault Code | Possible Cause |
|---|---|
| 60 | Pump error (stuck or there is an electrical pump fault) |
| 61 | Air in the pump (restricted central heating flow) |
| 70 | Return/flow sensor. Exchange from possible wiring fault |
| 75 | Return/flow sensor fault from possible failure of one or both sensors |
| 76 | Return/flow sensor fault from possible failure of one or both sensors |
| SR | Service reminder |
E-Tec Plus Combi Boiler Error Codes
Here's a complete list of diagnostic error codes for the E-Tec Plus Combi boiler that should give you an idea what might be causing an issue with your Alpha boiler. Boilers tend to be complex pieces of kit so there are sometimes a lot of components to diagnose if something goes wrong, even more so with combination boilers and their ability to heat so many different things. It’s always worth looking at some error codes first before calling out an engineer.
| Fault Code | Possible Cause |
|---|---|
| 60 | Pump error (stuck or there is an electrical pump fault) |
| 61 | Air in the pump (restricted central heating flow) |
| 70 | Return/flow sensor. Exchange from possible wiring fault |
| 75 | Return/flow sensor fault from possible failure of one or both sensors |
| 76 | Return/flow sensor fault from possible failure of one or both sensors |
| SR | Service reminder |
E-Tec Regular Gas Boiler Error Codes
The list below includes some of the more common E-Tec Regular Gas Boiler Error Codes that you may encounter while diagnosing problems with your boiler.
These error codes help you to diagnose any problems with your Alpha boiler. A lot of engineers find these error codes really useful when diagnosing boiler faults. This is because they can accurately pinpoint where the problem is occurring in the boiler or system.
| Fault Code | Possible Cause |
|---|---|
| 1 | Ignition failure |
| 2 | Overheat boiler lockout |
| 3 | High flue thermostat temperature |
| 4 | Gas valve electrical connection fault |
| 5 | Heating flow sensor fault |
| 6 | Internal wiring error |
| 7 | Chimney sweep function is active |
| 8 | Maximum number of resets |
| 12 | Cylinder sensor fault (FlowSmart only) |
| 16 | Fan fault |
| 20 | Flame sensing fault |
| 23 | Heating return sensor fault |
| 24 | Control panel button fault |
| 27 | Insufficient primary flow |
| 29 | Flue sensor fault |
| 31 | Loss of communication with external control (Alpha Climatic) |
| 37 | Low supply voltage |
| 38 | Loss of flame rectification |
| 43 | Loss of flame rectification |
| 44 | Safety lockout |
| 45 | High-temperature difference |
| 46 | Optional thermostat intervention |
| 47 | Reduced burner output |
| 49 | Return sensor high temperature intervention |
| 51 | Climatic RF communication fault |
| 70 | Return flow sensor error |
| 71 | No primary temperature increase detected |
Evoke Combi Boiler Error Codes
When your Alpha Evoke Combi boiler starts to show signs of trouble, it can be difficult finding out what the problem is. As boiler standards are becoming more and more strict, it’s important to have a detailed understanding of the error codes you may encounter.
Error codes can be confusing. Just by looking at the error code on your boiler’s LED display you cannot tell what the problem might be. That’s why we have created a list of all Alpha Combi boiler error codes so you can diagnose any problems with your boiler.
| Fault Code | Possible Cause |
|---|---|
| 60 | Pump error (stuck or there is an electrical pump fault) |
| 61 | Air in the pump (restricted central heating flow) |
| 70 | Return/flow sensor. Exchange from possible wiring fault |
| 75 | Return/flow sensor fault from possible failure of one or both sensors |
| 76 | Return/flow sensor fault from possible failure of one or both sensors |
| SR | Service reminder |
Protec Plus Boiler Error Codes
Protec Plus boiler error codes can be slightly confusing at first. However, they are essential to understand and fix your faulty internals. There are several boilers that use the Protec Plus Boiler Hybrid system. Understanding what the boiler is telling you is important if you choose to investigate the issue further.
The best way to avoid boiler breakdowns is to be aware of any error codes and follow the instruction manual for troubleshooting. Error codes may produce different symptoms that should be obvious and by closely observing yours, you can diagnose any problems with your Alpha boiler.
This list of Protec Plus boiler error codes are useful for diagnosing issues with your boiler. We’ve listed all the possible errors you could get so you can eliminate them one by one and resolve any problems with your appliance.
| Fault Code | Possible Cause |
|---|---|
| 0A1 | Ignition failure |
| 0A2 | Flame detection fault |
| 0A3 | Overheat thermostat lock-out |
| 0A5 | Fan speed fault |
| 0A7 | High flue temperature fault |
| 0A8 | Flame circuit fault |
| 0A9 | Gas valve electrical error |
| 0A15 | "Flow and return sensor anomaly detected (incorrect temperature value shown on sensor.)" |
| 0A16 | Flow sensor temperature rise incorrect (time taken for flow temperature to rise is too long. |
| 0A17 | Return sensor temperature rise incorrect (time taken for flow temperature to rise is too long. |
| 0A18 | Flow and return sensor anomaly detected. Sudden temperature change detected on the flow or return sensor. |
| 0A21 | Main PCB fault |
| 0A30 | Flow sensor short circuit |
| 0A31 | Flow sensor out of range. (sensor measures a temperature not in normal range.) |
| 0A37 | Insufficient system flow (if the system flow is too low for a certain length of time boiler will switch off) |
| 0A43 | Return sensor short circuit |
| 0A44 | Return sensor out of range. Sensor measures a temperature outside normal working range |
| 0A80 | Flow and return sensor connection fault (may occur after several minutes of boiler operation.) |
| 0E2 | Flame sensing fault. |
| 0E13 | Maximum number of resets reached. (Over 5 reset attempts have been reached within 15 minutes.) |
| 0E25 | Main PCB fault |
| 0E34 | DHW sensor out of range (measures a temperature outside normal working range.) |
| 0E33 | Low power supply voltage |
| 0E37 | Insufficient system pressure |
| 0E45 | Flue sensor short circuit |
| 0E46 | Flue sensor out of range (measures a temperature outside of normal working range) |
| 0E81 | Flow and return sensor anomaly detected (the sensor shows an incorrect temperature value) |
| 0E98 | Flow and return sensor anomaly detected (sensor shows incorrect temperature value) |
| 0E99 | Simple cascade communication error |
| FE94 | Display PCB fault. |
| FE95 | External flow sensor out of range or short circuit/ External flow sensor measures a temperature outside of normal working range. |
| FE96 | External sensor fault |
| FE97 | Boiler PCB configuration error (may occur if the main PCB or display PCB is changed.) |
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