Biasi Boiler Error & Common Fault Codes
A boiler fault code can be a daunting sight, but have solace in the fact that the fix may be more straight forward than you think.
We have compiled a table of all the error codes you could potentially get on your Biasi boiler so you can understand what the potential cause of the issue is. Sometimes the fix can be as simple as a reset, but on occasions you will have to get a professional out to see the boiler, if you are still unsure on what the fault code display means then our partnered boiler engineer experts will be able to help, just simply fill out the quote form above!
General Faults & Errors
This section is an overview of all of the types of errors that can occur on a Biasi boilers.
Image Displayed | Fault Code | Potential Cause |
---|---|---|
31 | N/A | Primary circuit temperature is displayed and the boiler is in summer mode (d.h.w.) |
32 | N/A | Primary circuit temperature is displayed and the boiler is in winter mode (d.h.w.) |
34 | N/A | The d.h.w. temperature is displayed and the boiler is on demand for c.h. & d.h.w. power |
46 | N/A | Set d.h.w. |
65 | N/A | Wrench symbol flashing without showing any error means maintenance is required |
68 FL | N/A | Boiler stand-by, antifreeze protection activated, hyphens turned on to simulate running |
68 FL | N/A | The signal FL is flashing every 1 second, but the boiler is working regularly and the display shows all the icons - Filling request |
78 | N/A | Set c.h. |
88 | N/A | Chimney sweep function activated |
AF 16 | N/A | Anti-frost phase activated by boiler, you will see bP & temperature flashing |
AN 11 | N/A | AN flashing + number error flashing is a flame detection error |
BP 15 | N/A | Anti-freeze phase activated by boiler, you will see bP & temperature flashing |
CF 68 | N/A | 3 stars DHW comfort pre-heating function No information displayed Check the state in the INFO value cF, although the cF is alternated toe CH temperature value until the function is ended Enter the function by pressing the buttons 12 and 13 together Function confirmed as showing on or off alternating for 5 seconds Functions activated every hour and it's not possible to change the time slot unless a remote control is connected |
CF ON | N/A | 3 stars DHW comfort pre-heating function No information displayed Check the state in the INFO value cF, although the cF is alternated toe CH temperature value until the function is ended Enter the function by pressing the buttons 12 and 13 together Function confirmed as showing on or off alternating for 5 seconds Functions activated every hour and it's not possible to change the time slot unless a remote control is connected |
ER 04 | N/A | The pressure is insufficient and the boiler has stopped with a lock of water error displaying |
Flame | N/A | Burner on and the flame is present |
Flame with sparks | N/A | Spark on burner ignition |
N/A | ER 02 + Reset | Intervention lockout by the safety thermostat |
N/A | 30c | Boiler is waiting for heat request |
N/A | ER 01 + Reset | On safety lockout there has been a lack of burner ignition |
N/A | ER 03 + Reset | General lockout |
N/A | ER + 14 + Reset | Primary temperature is above 105C or the pump is faulty |
N/A | ER + 14 + Reset | Primary temperature is above 150C or the pump is faulty |
N/A | Li | During d.h.w operation the primary circuit has reached temperature limit |
N/A | - | Boiler stand-by, antifreeze protection activated, hyphens turned on to simulate running |
N/A | ER 10 + Reset | Intervention lockout due to flue probe |
N/A | LP | Chimney sweep function activated |
PO 35 | N/A | Po & temperature flashing - pump activated for the post-circulation phase |
Spanner | ER 04+ | No water or absence of flow causing a faulty primary circuit |
Spanner | ER + 14 + | Absence of flow from temperature gradient (>2K/s) |
Spanner | ER 09+ | Flue temperature probe NTC faulty |
Spanner | ER 08+ | External temperature probe NTC faulty |
Spanner | ER 07+ | d.h.w. temperature probe NTC faulty |
Spanner | ER 06+ | c.h. temperature probe NTC faulty |
Spanner | ER 05+ | Fan control system faulty |
UU 56 | N/A | UU & temperature flashing - delayed burner ignition for setting the system |