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Cod. +030221881 rel. 1.0 - 11/02/2000 34
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SUREOHP
&$86(
FKHFNV
the compressor does not start
(signalled by compressor LED
flashing)
• compressor delay on
• post defrost dripping in progress
check parameters
F
,
F
and
F
and
GG
the temperature is over the set
limit but there is no alarm
message and the buzzer, if
present, does not sound
alarm delay on
check parameters
$G
,
F
,
G
the alarm
,$
is signalled
(multifunction input) without this
actually being active
the multifunction input generates an alarm when the
contact opens
check the connection of the input
and if it is closed in normal
operation
the alarm connected to the
multifunction input is not detected
alarm delay on or parameter setting error
check if
$
=1 check the status of
the digital input
check
$
• defrost cycle too short (
G3
)
• interval between defrost
G,
=0: in this case the
defrost is not activated
check parameters
G3
and
G,
and
+
for S models
the defrost is not activated
the end defrost temperature is too low or the
evaporator temperature is too high
check parameters
GW
and
G
defrost probe
the manual defrost is not activated
and the defrost LED flashes
the compressor protection times are active
check parameter
G
(select
G
=1,
see
:$51,1*6
)
the high temperature alarm
appears after a defrost
the alarm delay after defrost is too short or the alarm
threshold too low
check parameters
G
and
$+
the display remains off even after
the defrost
the ambient temperature has not yet reached the set
value or the time
G
has not elapsed
wait or reduce
G
after modifying a parameter the
control continues to operate with
the old values
the instrument has not updated the old value or the
parameter programming procedure was not concluded
correctly, that is by pressing the button for 5
seconds
turn the instrument off and on
again or re-program the
parameters correctly
for the
&
models, the fans do not
start
1. a delay in the activation of the compressor and the
fans has been selected
2. if
)
=1 (fans managed by fan controller)
• the evaporator is <hot>: the evaporator
temperature can be read by selecting the
parameter
G
;
• dripping is in progress;
•
)
(fan off temp) too low.
• post dripping delay is on
3. if
)
=0
•
)
=1 and the compressor is off
• dripping is in progress
• post dripping fan off is in progress
1. check parameter
F
2. parameters
)
,
)
,
)G
,
GG
and
G
3. parameters
)
,
)
,
GG
and
)G
7DE
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