Viessmann Tecto FL2 Aida Bedienungsanleitung Seite 12

3.2.3. Alarms
In an error situation the alarm LED flashes on the control device display and the alarm relay is activated
(depending on priority). Push the alarm button for 3 seconds to see the alarm report.
Code / alarm text via data communication
A1/--- High t. Alarm
A2/--- Low t. alarm
A5/--- Max hold time
A11/--- No Rfg. sel.
A13/--- High temp S6
A14/--- Low temp S6
A15/--- DI1 alarm
A16/--- DI2 alarm
A45/--- Standby mode
AA2/ ---Refrig Leak
AA3/--- CO2 alarm
--- AD Iced
--- AD flashgas
E1/--- Ctrl. error
E6/--- RTC error
E20/--- Pe error
E24/--- S2 error
E25/--- S3 error
E26/--- S4 error
E27/--- S5 error
E28/--- S6 error
EN DE ES FR PL RU NL FI SV NO DA EE LT LV
Description
High temperature alarm section A
Low temperature alarm section A
The "o16" function is activated during a coordinated
defrost
No refrigerant selected
Temperature alarm. High S6
Temperature alarm. Low S6
DI1 alarm
DI2 alarm
Standby position (stopped refrigeration via r12 or DI
input)
A refrigerant leak detection signal is received
A refrigerant leak detection signal is received and the
selected refrigerant is CO2
Evaporator is iced up. Reduction of air flow
Flash gas is formed at the valve
Faults in the controller
Check clock
Error on pressure transmitter Pe
E24/--- S2 error
Error on S3 sensor
Error on S4 sensor
Error on S5 sensor
Error on S6 sensor
12