CU-EMA+
7 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
.
7.1 Troubleshooting
Problem / Malfunction
Possible cause
Action
Condensate inside the gas
output
– External condensate trap full
– Empty external condensate trap
– Cooler overload
– Maintain limits
– Peristaltic pump failure
– See separate peristaltic pump instructions
Reduced gas flow rate
– Gas circuit clogged
– Remove and clean heat exchanger
– if necessary, replace filter element
– Condensate output iced over
– Send in unit
Excess temperature
– Operating point not yet reached
– Wait (max. 20 min)
– Cooling output too low despite the cooler
running
– Ensure the vents are not covered (heat build-
up)
– Flow rate / dew point / gas temperature too
high
– Maintain limits / install pre-separator
– Built-in fan stopped
– Check and replace if necessary
Temperature low
– Control unit failure
– Send in cooler
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Bühler Technologies GmbH
BE440029 ◦ 10/2020
