Tuttnauer 2540 EHS, Technician Manual

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98
Corrections
21.1
Clean the electrode with alcohol and check that the quality of the water used in the jacket is as specified in the manual.
21.2
Fix the connections.
21.3
Replace the faulty electrode.
21.4
Replace ANL- T2 board.
22.1
Increase tightness if leaking occurs.
22.2
Clean the gasket or replace
22.3
The thicker part of the gasket fits into the door groove first
22.4
If the leaking occurs in the area of the locking device, it is most likely coming from the door bellows.
23.1
Replace the door bellows
Possible cause check-up and tests
21.1
Electrode is not clean.
21.2
Disconnect the electrode. The displayed number should be approx. 255. Short- circuit the electrode by touching the electrode housing with the wire of the disconnected electrode. The displayed number should be "0". If so – the electrode is faulty.
21.3
Check for an open in the wire connecting the electrode to the ANL-T2 board at the JP11 connector.
21.4
If there is no open in the circuit then the ANL-T2 board is damaged.
22.1
Make sure the door is closed tightly
22.2
Check if the gasket is clean and smooth.
22.3
Make sure the gasket is installed correctly.
22.4
Check the door bellows.
23.1
The door bellows locking mechanism is faulty.
10. TROUBLESHOOTING
(cont.)
10.4
In Process Malfunction
(cont.)
Symptom
21.
The electrode does not sense water in the jacket, but the jacket is full.
22.
Steam leaks from around the door.
23.
The door bellows locking mechanism does not lock the door at a pressure of 6 psig.