Midmark M11: Error Code 007 – What does it mean?

If your autoclave is not working properly and displays the error code “007”, it means that the diagnostic part of your Midmark M11 has detected a water leak somewhere within its system. And it is more likely to be located in 1 of 3 areas:

1. door seal
2. filling solenoid valve
3. wind solenoid valve

Tip #1: Door Gasket – Check the door gasket first. Is steam escaping from around? It is a good idea to remove the gasket weekly and wash it in mild soapy water. If you haven’t replaced it in a while, go ahead and replace it. (Midmark recommends replacing it at least once a year (every 6 months with heavy use).

Tech tip–>The dam gasket should always be replaced at the same time as the door gasket is replaced

Tip #2: The Fill Solenoid Valve – Just as the name implies, this valve controls the water going into the chamber. When working properly, it opens when the unit is in the fill cycle. But it can get stuck in the open or closed position.

If you find that no water enters the chamber, then it is clogged. If you continue to let water in after you’ve reached the fill mark and the dial is off in fill mode, then it’s stuck.

A sure sign that the fill solenoid valve is stuck open is when you are going to use it and the reservoir is empty. Even if you know it was full when you last saw it, or recently filled it.

There will also be other evidence that it is stuck, such as water under the autoclave, on the counter, or even on the floor.

Tip #3. The Vent Solenoid Valve. This valve controls the water that leaves the chamber and re-enters the water tank. Like the fill solenoid valve, ot can get stuck in the open or closed position.

If it is stuck open, you will hear an excessive “gurgling” sound at the bottom of the reservoir during the sterilization cycle. If it is stuck in the closed position, you will notice water in the chamber at the end of the cycle.

No matter which part ends up being the source of your problem, the repair is not difficult to do. You can fix it yourself and save the cost of a service call. We will be happy to help you with easy-to-follow step-by-step instructions.