Tuttnauer 2540 EHS, Technician Manual

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111
Corrections
1.1
Remove any blockage from the valve or the line
1.2
If it does not help – replace the faulty valve.
2.1
Replace the valve and check the quality of the mineral free water.
2.2
Replace relief valve
3.1
Replace the safety valve
4.1
Replace the safety valve
5.1
Replace the safety valve and check the quality of the mineral free water.
6.1
Tighten or replace the rubber legs.
Possible cause check-up and tests
1.1
Check for a clog in the line leading to the Safety valve.
1.2
Safety relief valve
is faulty
2.1
The seat of the valve has become dirty from a mineral build up.
2.2
Safety relief valve is faulty.
3.1
Safety relief valve is faulty.
4.1
Safety relief valve is faulty.
5.1
Safety relief valve is faulty.
6.1
Pump’s rubber legs are loose or damaged.
10. TROUBLESHOOTING (cont.)
10.5
Mechanical malfunction
Symptom
1.
The safety valve does not release pressure when the blow-off test is performed.
2.
Safety relief valve opens at a pressure lower than what is specified for the valve.
3.
Safety relief valve opens at pressure that is higher (more than 10%) than what is specified for the valve.
4.
Safety relief valve does not close within 2-3 seconds.
5.
Safety relief valve leaks constantly.
6. Vibration
occurs
during the operation of the pump.