Troubleshooting support
7.2
Info message
Info display
Info code
54
57
253
298
318
321
322
7.3
Explanation of terms and abbreviations
E
ERROR
F
FRIWA
H
h
I
Actual value
K
04/2021 Item no. 215790 EA no. 1321
Description
Thermal disinfection, temperature
not reached or not carried out.
Maximum temperature for circula-
tion ZIR02 MAX TEMP CIRCULATION
exceeded.
Master not in sequence, eBUS
address of master not entered in
STN1 (04:022).
Lower switching threshold is set
lower than the minimum pump
speed.
Fresh water setpoint temperature >
legionella protection temperature.
Minimum temperature loss > max-
imum temperature loss.
Minimum tapping volume > max-
imum tapping volume.
Total fault message
Primary pumps
Hours
Temperature measured
Operating instructions
The controller checks the status of
the plants and indicates errors.
This is a plausibility check of the
entries and is used for informa-
tional purposes in the event of
malfunctions.
Possible cause
n
Primary temperature is too low.
n
Tapping is in progress.
n
No circulation flow or circulation
flow rate too low.
Incorrect basic setting
n
STN1 (04:022) = 0
Incorrect basic setting
KAS05 (36:021) < STE01 (05-090)
n
Incorrect basic setting
BAS01 (05:051) > LEG01 (05:004).
n
Incorrect basic setting
STE12 (05:100) > STE14 (05-101).
n
Incorrect basic setting
STE13 (05:102) > STE15 (05:103).
n
ES 5941
49