10 Alarms and troubleshooting
ASTOTHERM PLUS Instructions for Use
31
10.1 Low temperature alarm
Control panel
Device response
The display
shows an actual temperature
, which
is more than 4°C below the setpoint temperature
.
The green “On” LED
lights.
The green “Start” LED
lights.
The “Alarm” LED
lights yellow.
The acoustic alarm signal is activated with a 2 minute
delay.
The heating element is not switched off.
Alarm condition
The current temperature of the heat exchanger is more
than 4°C below the setpoint temperature during
Heating
Mode
.
Possible reason(s)
►
Required
action(s)
Inlet temperature of the liquid is too low and the flow rate is
too high.
►
Reduce flow rate.
Warmer is defective.
►
Return ASTOTHERM PLUS to local sales office.
Possible actions to
clear
None, the alarm is automatically disabled if the alarm
condition is eliminated.
During warm up phase, as long as the actual temperature
is 4°C below the selected setpoint temperature, low
temperature alarm is displayed (visual alarm signal only).
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