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EGK 2A Ex
8 Service and repair
This chapter contains information on troubleshooting and correction should an error occur during operation.
Repairs to the unit must be performed by Bühler authorised personnel.
Please contact our Service Department with any questions:
Tel.: +49-(0)2102-498955 or your agent
If the equipment is not functioning properly after correcting any malfunctions and switching on the power, it must be inspected
by the manufacturer. Please send the equipment inside suitable packaging to:
Bühler Technologies GmbH
- Reparatur/Service -
Harkortstraße 29
40880 Ratingen
Germany
Please also attach the completed and signed RMA decontamination statement to the packaging. We will otherwise be unable to
process your repair order.
You will find the form in the appendix of these instructions, or simply request it by e-mail:
service@buehler-technologies.com .
8.1 Troubleshooting
CAUTION Risk due to defective device
Personal injury or damage to property
a) Switch off the device and disconnect it from the mains.
b) Repair the fault immediately. The device should not be turned on again before elim-
ination of the failure.
Problem / Malfunction Possible cause Action
Indicator doesn't light – No power supply – Connect to power
– Protective device (protective motor
switch) was triggered
– see item "protective device is triggering" in
this table
– Electronics defective – Replace or have replaced; If the error re-
curs, check the power supply for malfunc-
tions
Display flashes "Stop" – Pressure monitor was triggered
– During first start-up – see description in chapter Press switches
respond during initial start-up [>
page 26]
– Later, during operation – Reset pressure switch (see chapter Check-
ing/Resetting Pressure Monitoring
Switches
[> page 26])
Temperature display
flashing – Operating range not yet reached – Wait a few minutes
– Heat input from sample gas is too high:
Dew point/flow rate/gas temperature
or combination thereof too high
– Observe/check specifications
– Ambient temperature too high – Observe/check specifications
– Cooler ventilation restricted – Observe the information in chapter Install-
ation site requirements
– Insufficient temperature: Sensor or
electronics defective
– Remove and send in cooler
Condensate inside the
gas output – Condensation trap full – Empty condensation trap
– Valve inside the automatic condensate
drain is stuck
– Flush in both directions
– Cooler / heat exchanger overloaded – Maintain limits
24 Bühler Technologies GmbH BE450020 ◦ 01/2020