Atag i24S

2 | P a g e
ATAG i Series 1st generation boiler fault finding.
Fault codes or error:
Fault
Fault
Fault
Other
10
20
28
40
50
61
78
105
110
111
113
117
118
119
128
129
130
133
151
154
164
180
181
SE
Spanner symbol
Pump constantly
running.
Blank display screen
Boiler heating – no
demand & One
Connected.
Error code on ONE
Controller: Code 002 /
003
Random fault codes on
One Controller.
Sensor resistances
Error Sub Codes - 7 Day
Two Channel Plug-In
Digital Programmer