BoilerFaultCodes An 11
Flame detection error
Biasi Advance Plus 30S ErP Fault codes & diagnostics
33 fault codes with plain-English explanations, severity ratings, DIY guidance, and repair cost estimates.
System Gas 2015-present
GC Number 41-583-29
Download the Biasi Advance Plus 30S ErP manual
PDF
Versions & GC numbers
The fault code is already on your display
Note it down before pressing reset — resetting clears the code immediately. How to read fault codes →
Severity at a glance
Each cell = one fault code. Hover to identify. 33 Unrated
Which version do you have?
The GC number on your boiler's data badge identifies the exact appliance and production years, as recorded in the UK Product Characteristics Database.
| GC number | Appliance (register name) | Produced |
|---|---|---|
| 41-583-29 | Advance Plus 30S ErP | 2015–present |
Appliance names and production years are taken from the UK Product Characteristics Database (the SAP/SEDBUK register). Where a GC number is also printed in this model's own manufacturer manual, both sources were checked to agree.
Just want the most common Biasi Advance Plus 30S ErP faults?
The top 6 problems in plain English — with causes, DIY checks and repair costs.
Fault codes
All 33 documented codes
Tap any card for details
E01
Appliance lock-out
E02
Appliance lock-out
E03
Appliance lock-out
E04
Appliance lock-out
E05
Appliance lock-out
E06
Appliance lock-out
E07
Appliance lock-out
E08
Appliance lock-out
E09
Appliance lock-out
Showing 11–20 of 33
E10
Appliance lock-out
E14
Appliance lock-out
E25
Appliance lock-out
Er 01
Lack of burner ignition on safety lockout
Er 02
Safety thermostat intervention lockout
Er 03
General lockout
Er 04
Faulty primary circuit (no water or absence of flow)
Er 05
Faulty fan control system
Er 06
Faulty C.H. temperature probe NTC
Er 07
Faulty D.H.W. temperature probe NTC
Showing 21–30 of 33
Er 08
Faulty external temperature probe NTC
Er 09
Faulty flue temperature probe NTC
Er 10
Flue probe intervention lockout
Er 11
Flame detection error
Er 12
Faulty central heating temp. probe NTC (return)
Er 13
DT delivery-return >40K
Er 14
Faulty pump (absence of water flow in the main circuit) or primary temperature above 105 °C
Er 19
Domestic hot water inlet probe failure (if present)
Er 25
Flame detection error
Er 69
Wiring error lockout
Showing 31–33 of 33
Er 99
Parameter setting error
L10
Appliance lock-out
Li 01
Primary circuit temperature limit during D.H.W. operation
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