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ITEM A-03-343
DATED NOVEMBER 2012
SUPERCEDES MARCH 2011
Fault
Leak between the HE plates.
Leak between the heat
exchanger plates and the
frame.
Damage to the heat
exchanger plates.
Leak between pipe connection
and the pressure plate.
Insufficient heat transfer.
Too high pressure loss.
INSTALLATION TROUBLESHOOTING GUIDE
Possible Cause
Inadequate or excessive
compression dimension of the
heat exchanger.
Too high working pressures.
Too high/too low working
temperatures.
Gaskets fitted incorrectly.
Gaskets are dirty.
Gaskets are defective or
hardened.
Gaskets fitted incorrectly.
Gaskets are dirty.
Gaskets are defective.
Overtightened plate packs
(compression dimension less
than "a min").
Corrosion of the heat
exchanger plate material.
Too high loads at the pipe
connection due to the pipe.
Gasket fitted incorrectly.
Gasket is dirty.
Gasket is defective.
Flange connection is not
sufficiently tightened.
Deposits on the heat
exchanger plates.
Flow paths, media etc.
changed from the original
design.
Flow impeded by blockage
of the flow channels of the
distributor.
Flow impeded by incorrect
mounting of the heat
exchanger plates.
Remedy
• Compare the actual compression with the compression
dimension on the data plate, and correct as needed.
• Compare the actual pressure with the design pressure on the
data plate.
• Compare the actual temperature with the design temperatures
on the data plate.
• Open the heat exchanger and correct the gasket installation.
• Open the heat exchanger and clean the gaskets.
• Open the heat exchanger and replace the gaskets.
• Open the heat exchanger and correct the installation of the
gaskets.
• Open the heat exchanger and clean the gaskets.
• Open the heat exchanger and replace the gaskets.
• Replace heat exchanger plates and gaskets.
• Check the design of the heat exchanger concerning flow-
through media; consult Aurora.
• Reduce connection loads.
• Loosen the pipe connection and correct the installation of the
gasket.
• Loosen the pipe connection and clean the gasket.
• Loosen the pipe joint and replace the gasket.
• Check the gasket and connection and tighten any loose bolts.
• Clean heat exchanger plates.
• Have the design of the heat exchanger with the new
operating data checked by Aurora.
• Clean heat exchanger plates.
• Check the installation against the flow diagram.
12
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