Fault: "Low Press Error." What should I do?
A "Low Pressure" error occurs when the vessel does not have at least 3 psi after 13 minutes.
Possible Causes:
(1) The lid was not tight. You do not have to over tighten the lid, but it needs to be snug. Usually, a finger tight + 1/4 turn is adequate.
Check the Lid O-Ring and replace it if damaged.
(2) The vessel did not heat, or you have a leak, therefore no pressure was generated.
To test:
- Disconnect the solution supply tubes on the left and right side and start a run.
- When the screen says "Filling" pour in 2100 ml of hot soapy water (dish soap works best) over the bag suspender to cover the level sensor. Agitation will begin. Close the lid.
- Record the temperature and pressure.
- Wait 5-8 minutes and record the temperature and pressure again.
- Place the open ends of the drain tube and vent line in separate small buckets of water. Do you notice any "bubbling" as the Instrument heats?
- In the back of the instrument do you notice any bubbles in the A and B Clear Valve Tubing as the instrument heats? For a picture, refer to A2000 Service Procedure A2000-A2000I View (Internal) (AS028). If bubbles appear in the tubing, see A2000 Service Procedure A and B Valve Cleaning (AS004).
- In A2000 Service Procedure Leak Check at Fittings (AS003), the diamond markers indicate the assemblies that have attached fittings that need to be checked. Place a soap and water mixture around the fittings. Do you notice any "bubbling" around the fittings?
- If the vessel has pressure but the display is still reading zero, the pressure sensor and cable may need to be replaced. Contact ANKOM at (315) 986-8090 and ask for a Technical Service Representative.