Trouble Shooting - M&C CSS Series Instruction Manual

17 TROUBLE SHOOTING

The following table shows possible sources of errors and how to remove them (not applicable for the
starting-up phase).
Display Fault
None
LED K1 is
beaming
permanently and
temp. > 8 °C
[> 46.4 °F]
Temp.
Cooler runs,
> 2 °C
sample flow is
[> 35.5 °F] and
interrupted;
< 7.5°C
[< 45.5 °F]
Pump
defective
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Possible cause
No supply voltage;
Cooler alarm „Excess
temperature"; cooler
switches off the
sample gas pump
automatically if
existing;
Ventilator does not
function
Diaphragm pump
does not work;
Liquid alarm sensor:
Sensor turns sample
gas pump
automatically off;
CSS-V | 1.01.02
Examination/Correction
Check the supply voltage according to the type
plate;
ok?
Control whether the mains plug is put in correctly;
ok?
Examine the fine fuses F1, F2 in the cold appliance
socket;
ok?
Ambient temperature too high;
ok?
Free convection inside the gas conditioning unit
upset  internal temperature too high;
ok?
Sample flow or dew point too high? Reduce flow.
ok?
Return the instrument for repair to M&C.
LED Liquid alarm is beaming red.
Liquid in the filter (Dry filter and liquid alarm sensor
and check peristaltic pump, see below.)
ok?
Check the tubing for condensate draining;
ok?
Check pump tubing (see 15.3.1)
ok?
Check pump SR25.2 (see 15.3);
ok?
Return instrument for repair to M&C.
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