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error Danfoss
Error Code E33
Error on suction gas sensor, S4.
? What Causes This
Suction temperature sensor may show signs of malfunction or loose connections.
✓ How to Fix It
Test for reliable functionality in the suction sensor. Replace faulty parts immediately.
Source: page 6 of the official manual
From the manual
This error code appears in:
Danfoss Optyma Control