Tuttnauer 2540 EHS, Руководство техника

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101
Corrections
26.1
Correct any problem with the mineral free water inlet
26.2
Replace blown fuse.
26.3
Replace the DIG-T2 board
26.4
If approximately 120VAC is present then the pump is faulty and should be replaced. If no voltage is present then replaced the AC-T1 board.
26.5
Clear any clog and / or replace the filter.
26.6
Replace faulty float switch.
27.1
Replace the DIG-T2 board.
27.2
With the JP1 removed if the pump continues running then replace the AC-T1 board. If it stops then replace the ANL-T2
27.3 Fix
connection.
Possible cause check-up and tests
26.1
Check that the water pump reservoir is full and mineral free water will flow in freely.
26.2
Check the fuse at the rear of the unit.
26.3
Check TP17 if the voltage is constantly <1VDC then the problem is on the DIG-T2 board.
26.4
If the voltage at TP17 is higher than 4DC, then remove the JP7 connector and check the output of JP7-2 on the AC-T1 board to ground.
26.5
The pump has stopped due to a clogged water pump filter
26.6
The lower float in the vacuum pump reservoir
may
be
faulty,
stopping
the
pump.
The problem may be a failure of the control
circuit on the DIG-T2 board or the driver on the AC-T1 board.
27.1
Check TP17. If the voltage is higher than 4V then the DIG-T2 board is faulty.
27.2
If the voltage at TP17 is <1VDC the problem is either the AC-T1 board or the ANL-T2 board. Turn off power and remove the JP1 connector on the AC-T1, turn power back on
27.3
Upper level electrode control wire is disconnected or electrode does not sense water (see sec 10.4.21).
10. TROUBLESHOOTING
(cont.)
10.4
In Process Malfunction
(cont.)
Symptom
26.
Water pump does not operate.
27.
Water pump is always on