Tuttnauer 2540 EHS, Technician Manual

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112
Corrections
7.1
Check that the steam valve (93) from jacket to chamber is clear and functioning properly.
7.2
Replace the faulty heating element.
8.1
Replace the faulty seal clean valves and tighten pipefittings Replace the damaged piping.
8.2
If there is no vacuum at the outlet, repair or replace the pump.
8.3
Fix water supply to the pump.
8.4
Repair or replace a faulty valve.
8.5
Remove any blockage in the pipes or valves
8.6
Correct any voltage problem.
Possible cause check-up and tests
7.1
Check if there is steam in the jacket, by carefully pulling the ring of the safety valve.
7.2
The heating elements are not producing enough power.
8.1
Check for a vacuum leak, use program 6. If
maximum vacuum is reached but is
not maintained the problem is a faulty door seal, leaking valves, leaky pipefittings or damaged piping.
8.2
Check the vacuum pump outlets.
8.3
Check the water supply to vacuum pump.
8.4
Check the vacuum valve.
8.5
Check if the vacuum path is blocked
8.6
check that the pump is receiving the correct voltage.
10. TROUBLESHOOTING (cont.)
10.5 Mechanical malfunction (cont.)
Symptom
7.
The process is aborted by a “Low Pres” failure in the prevacuum stage (see also section 10.2 item 3)
8.
Prevacuum stage is not satisfactory