TROUBLESHOOTING
PROBLEM
POSSIBLE REASON
RESULT
SOLUTION
No temperature sensor
connection
TA (Zone A
temperature sensor)
or TB (Zone B
temperature sensor) is
disconnected
The icon displays
in the corresponding
control zone. The
output will be shut
down and all dry
contacts will be
disconnected in this
zone.
Connect the
temperature sensor
Auto dimming when
temperature is over the
limit value T-Limit 1
The temperature
of Zone A or Zone
B is over the set
value of T-Limit1
(auto-dimming
temperature)
Auto-dimming
of the output of
corresponding zone
as setting
Wait for the
temperature to drop
to at least 2°C lower
than the T-Limit 1
value
Auto shutdown when
temperature is over the
limit value T-Limit 2
The temperature
of Zone A or Zone
B is over the set
value of T-Limit 2
(auto-shutdown
temperature)
Auto-shutdown
of the output of
corresponding zone
Wait for the
temperature to drop
to at least 2°C lower
than the T-Limit 2
value
Parameter verification
fault
Detection of stored
parameters is not
complete
Auto-shutdown of the
output of all zones,
disconnection of all
dry contacts, and
display of this icon .
Try to restore factory
default settings
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