M&C TechGroup ECS Operator's manual - Manual (Page 24)

24
Gas sampling and gas conditioning technology 3-4.1-ME
LED display Function error
and status
alarm
Probable cause Checking / Correction
°C >
ON
°C <
green
red
Equipment does
not cool;
Cooler has been
over-cooled (temp.
< 2°C);
Ambient
temperature < 2°C
Cooling
compressor
stopped;
Cooling compres-
sor runs continu-
ously;
Ambient temperature must be ≥ 8°C!
Check temperature at EC automatic control board
(18.2);
If temperature < 2°C (< 0,2V):
Check PT100 temperature sensor (19);
If not OK:
Replace sensor.
Solid-state relay defective;
Replace EC automatic control board;