Witeg Wisd WIR Series, Руководство по эксплуатации

Страница: 22 / 24

www.witeg.de
witeg Labortechnik GmbH, WIR Low temperature Incubator
20
8 Troubleshooting Guide
Situation Confirmations and Solutions
Power Failure

Check the supplied voltage is present.

Check the power connection and the power cord for
proper connection and integrity.
 Check if the MAIN Power Switch is “ON”.

Fuse is blown.
Unit Not Heating

Check if the MAIN Power Switch
is “ON”.

Check if the set temperature (SV) confirmed with the Jog-
Dial knob (by turn the Jog- Dial knob cannot change the
set temperature
– see point 6.4)

Check the Safety switch is set higher (min. 10°C-20°C)
than the set temperature (SV).
Heating, but unit not reaching
temperature or temperature is
fluctuated

Check the Set Temperature is higher than ambient
temperature (recommended min set temp: 10°C higher
than ambient temp).

Check the Safety switch is set higher (min. 10°C-20°C)
than the set temperature (SV).

Check the Ventilation openings are closed.

Problem in the sensor or main controller.
Unit Not Refrigerating
 Check if the MAIN Power Switch is “ON”.

Check if the set temperature (SV) confirmed with the Jog-
Dial knob (by turn the Jog-Dial knob cannot change the
set temperature
– see point 6.4).
Refrigerating but it does
n’t fall
to the SV temperature

Problem with the the cooling circuit.
ERROR 1

Temperature Sensor or main controller Error.
ERROR 3

Door open alarm and appears when you open the door.

If Error 3 develops during door closed, check the Limit
Switch is pressed properly.
If other problems arise, or one of the above not solves problems, please contact your
official agent or the manufacturer.
Reparations and amendments should only made by
witeg authorized people.
Contraventions exclude the warranty.