ermaf TR 75 - Page 18

GB-18
D
GB
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? Fault code U. and 2 flash alternately and the
light is red?
! Voltage supply is above the limit (programmable
limit, e.g. >260V).
• Ensure that adequate mains voltage is supplied.
? Fault code U. and 3 flash alternately and the
light is red?
! All start-up attempts in the programmed voltage
range (e.g. 160 – 180V) are unsuccessful. The
last start-up attempt is not made to prevent a
lock-out.
• Ensure that adequate mains voltage is supplied.
? Fault code U. and 5 flash alternately and the
light is red?
! While a fault was pending, the unit has been
successfully reset more than 5 times within
15minutes using the remote reset input.
▷ Reset is only possible by pressing the RESET
button on the burner control unit or using the
remote reset if there is one.
? Fault code U. and 6 flash alternately and the
light is red?
! The unit has been unsuccessfully reset more
than 10times within 15minutes using the remote
reset input.
▷ Reset is only possible by pressing the RESET
button on the burner control unit or using the
remote reset if there is one.
? A circulating dash is displayed rather than
a fault code?
▷ After switching on the voltage, a circulating dash
is displayed.
▷ Three possible pieces of information are output:
! Switch-on delay time running.
Or
! Cycle lock active. The time (cycle lock) between
two starts is too short.
• The display will go out automatically as soon as
the time between two starts is long enough. The
burner control unit will ensure a pause between
start-up attempts on the basis of its parameteri-
zation. This warning is displayed during this time.
Or
! The main fan is switched off but the pressure
switch signal does not drop. A burner restart is
not possible.
• After 25s, the display will change to fault code
A. 9.