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Installation and Service Manual Upsilon-Series
57
Block.
B000sc00
Error
E000sc00
Message
M000sc00
14 Errorreport
On the display, errors found are shown in the form of a message or blocking on a blue
screen or an error on a red screen.
- Blocking This is a temporary error that will sort itself out, or it will block the
boiler after several attempts (error)(Except: Bx01sc01 = reset)
- Error Error implies a blocking of the boiler and can only be solved by a
reset and/or intervention of a service engineer.
- Message Implies a message such as low water pressure, but the device will
remain operational.
Point of attention requiring short-term intervention.
The code consists of a Main Code and a Subcode
Main code Blocking = B
Main code Error = E
Main code Message = M
Followed by a character 0 = boiler
1 = burner A
2 = burner B
Subcode always starts with sc
Bx01sc01 Fan does not run on correct speed (Reset necessary). Fan defective.
Bx03sc01* Flow sensor T1 open
Bx03sc02* Flow temperature T1 too high
Bx03sc03* Flow sensor T1a open
Bx03sc04* Flow temperature T1a too high
Bx05sc01* Return sensor T2 open
Bx05sc02* Return temperature T2 too high
Bx08sc01* General purpose contact open
Bx12sc01* Water pressure sensor open
Bx12sc02* Water pressure sensor closed
Bx12sc03* Water pressure lower than 0.7bar. Top up
Bx12sc04* Water pressure too high. Decrease pressure
Bx12sc05* No pressure increase on pump start
Bx13sc01* DT between T1 and T2 too high
Bx15sc01* Communication error between controls
Ex01sc01* Fan does not run on correct speed. Fan defective.
Ex02sc01* No ame after 4 start attempts
Ex02sc02* Insufcient ionisation
Ex04sc01* Flow temperature T1 too high
Ex04sc02* Flow sensor T1 closed
Ex04sc03* Flow temperature T1a too high
Ex04sc04* Flow sensor T1a closed
Ex06sc01* Return temperature T2 too high
Ex06sc02* Return sensor T2 closed
Ex18sc01* Unwanted ame forming
Ex14sc01* DT not fast enough
Ex14sc02* DT between T1 and T2 > 35°C
M024sc01 DHW sensor T3 open (when P122=1)
M024sc02 DHW sensor T3 closed (when P122=1)
M024sc03 Outside sensor T4 open
M024sc04 Outside sensor T4 closed
M024sc05 Common ow sensor T10 open
M024sc06 Common ow sensor T10 closed
M024sc08 Bus communication: Possibly no bus communication cable connected
Mx24sc09 Temperature increase (Gradient) not fast enough after burner start
Mx24sc10 DT between T1 and T2 > 35°C when gas valve opened
* When this code is shown with an M instead of a B or E then a reset with the reset button is possible.
OpenThermerrormes-
sages
Thecodingofthetrans-
mittedErrorMessages
onaOpenThermcon-
trollerisdisplayedas
follows:
(E)EB(E=ErrorCode=
Bandboilernumber)
example:ErrorCode
Ex02SC02onboiler6
willappearas(0)26
57


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Others manual(s) of A.O. Smith Upsilon UB-70

A.O. Smith Upsilon UB-70 User Manual - English - 2 pages

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A.O. Smith Upsilon UB-70 Installation Guide - Dutch - 72 pages


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