ECA Boiler Fault Codes

274 fault codes across 5 ECA boiler models — explained in plain English.

Turkish heating manufacturer. Niche UK presence.

274 fault codes
5 models documented
5 currently sold
0 legacy models

ECA fault codes on this site

We document 274 fault codes across 5 ECA models, covering 193 distinct codes. ECA boilers use a mix of numbered codes and light or status indications. Codes for 5 of these models are taken directly from the manufacturer's own service or installation manual. ECA is a smaller name in the UK market, and if you own one this is likely one of the few places its fault codes are collected in one place.

Models covered: Confeo Premix HM, Confeo Premix HCH, Confeo Premix HST, FELiS FL 50 HM, Proteus Premix 24 HCH.

Codes that appear on the most ECA models:
E44 E99 E01 E02 E03 E15
Just want the most common ECA problems?
The top 8 faults across the whole ECA range — causes, DIY checks, repair costs.
Most serious

High-severity ECA fault codes

E01
Your boiler has failed to light the flame, which means it cannot provide any heating or hot water until the issue is resolved.
Confeo Premix HM
 E02
Your boiler thinks a flame is present even though no gas should be flowing, which is a safety conflict that has caused the system to lock itself down.
Confeo Premix HM
 E03
Your boiler has shut down because the water inside it has become too hot and cannot circulate properly.
Confeo Premix HM
 E15
Your boiler has shut down because its internal sensors are giving conflicting or incorrect temperature readings.
Confeo Premix HM
 E16
Your boiler has stopped working because it cannot detect how hot the water is going into your radiators.
Confeo Premix HM
All models

5 ECA boiler models

Confeo Premix HM
Combi
38 fault codes · 2020-present
Confeo Premix HCH
Regular
41 fault codes · 2020-present
Confeo Premix HST
System
42 fault codes · 2020-present
FELiS FL 50 HM
Regular
151 fault codes · 2021-present
Proteus Premix 24 HCH
Regular
2 fault codes · 2017-present
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