Leaking Steam From Top of Machine
If there is steam coming from the top of your Profitec Pro 800, then one of the relief valves is venting steam. Use the steps outlined below to clean the valve, and if that does not resolve the issue, to replace it.
If the steam is leaking from the machine while it is heating up, with more and more steam coming from the top as the machine heats more, then the steam is coming from the vacuum relief valve.
- The vacuum relief valve is meant to vent steam until a certain amount of pressure has built up in the boiler. It is normal for this valve to vent steam as the machine is heating. Once enough steam pressure is built up in the boiler the valve will pop closed.
- If the machine is fully heated and the vacuum relief valve is still not closing then it may need to be cleaned.
- The video below discusses what these valve components do and how to clean them.
- If cleaning the vacuum relief valve has not resolved the issue, then the vacuum relief valve may be broken and will need to be replaced.
If the steam is leaking from the machine after it is fully heated, then the pressure relief valve may be relieving excess steam pressure.
- The steam boiler temperature may need to be lowered. If your machine features a pressure gauge it should not read any higher than 1.2 bar. Program the steam boiler temperature lower and lower until the relief valve stops opening and the pressure gauge reads 1.2 bar or lower.
- If lowering the temperature is not helping, then the pressure relief valve may be stuck open.