Wolfgang puck pressure cooker is showing a E4 code what does this mean

SOURCE: displays E2 and E4 (5 qt Wolfgang Puck pressure

I think E2 means open circuit in thermocouple in center of bottom. E4 means no contact on pressure sensing switch at edge of bottom. Mine had E4 error. Took out switch and used fine sandpaper to clean contact points. Now it works fine.
Remove 3 screws in bottom. Remove bottom cover by turning it ~1/4" to clear tabs. Remove switch at edge of bottom with two blue wires going to it. Clean contacts and replace.

Daniel Watkins

• 18 Answers
• Posted on Sep 19, 2012

SOURCE: My Wolfgang Puck pressure cooker shows 'E4' in the display.

There doesn't seem to be any legit way of fixing this. I tinkered with the pressure sensors and valves, kicked the pressure cooker a few times, still the E4 error presented itself.


I was able to bypass the E4 error by completely bypassing the electronics and wiring the heater coil to get power whenever the pressure cooker is plugged in. It was a very simple job, anyone with any electrical experience can do this.


There doesn't seem to be any legit way of fixing this. I tinkered with the pressure sensors and valves, kicked the pressure cooker a few times, still the E4 error presented itself.


The only problem is that it is a safety concern as there is no way for the heater to turn off even if pressure is getting to be way too high. There may be a pressure relief valve in the lid but the heater coil won't shut off, so don't leave it unattended! But at least this way to you can still pressure cook.
Pics of process:
http://s909.photobucket.com/albums/ac295/danwat1234/fixing%20the%20pressure%20cooker/