Need manual COOKS ESENTIAL PRESSURE COOKER DYB350

The only thing I can think of for 'LL' is 'Low Liquid'. It may also be 'eLLement' and they can't spell.

Unfortunately 'Cooks Essentials is a QVC trademark. They don't make them, they just buy from China and sell them. This page on the manual for _this_ model (you don't tell yours, 6 QT is a size, and they do lots) tells you about repair and warranty. It sounds like you have an element gone and the error is telling you in Chinese.

https://www.manualslib.com/manual/596837/Cook-S-Essentials-Cepc800.html?page=40

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https://www.scribd.com/doc/44820750/Cooks-Essentials-99700-Pressure-Cooker-Manual&ved=0ahUKEwifroiB9bjTAhUk6oMKHflmDPUQFggaMAA&usg=AFQjCNFFJ7zNR0Bjxzxs1mWbZHOZ8RT11w&sig2=o9_T-5eO4ZO90pV6EDb_nA

A pressure cooker is NOT anything close to a slow cooker. The cooking philosophy are practically totally opposites. A pressure cooker basically cooks your food in a fraction of time because it is under pressure. A slow cooker takes hours.

The whole idea of using a pressure cooker is that it is sealed and applies pressure to cook the food faster. The lid needs to be sealed for the pressure cooker to operate properly. It is frequently referred to as "infusion" cooking now days.

You need to read the instruction book that came with the pressure cooker. Pressure cookers usually cook for less than an hour--my homemade pressure cooker spaghetti sauce is cooked in less than 30 minutes. They are nice and were very popular long before anyone thought of microwaves and slow cookers. However, there are some precautions to be taken. There must be water or liquid in a pressure cooker. The rubber seal needs to be cleaned frequently and, when the rubber seal warps/stretches and no longer seals, it needs to be replaced. There are also certain foods that CANNOT be cooked in a pressure cooker like rice, dry beans, etc. The pressure control valve operates to regulate the amount of pressure and releases extra pressure otherwise the unit would blow up (very dangerous!). Most pressure cookers (required on all new ones) have a small rubber emergency stopper that will "blow off" in case the pressure is too high. I've seen this happen and my mother cleaning potatoes & meat from the ceiling!

I have a Tricity TSC09 6 litre Slow Cooker and I just love it its so handy, if your gone for even 10 hours it keeps your dinner warm after the cooking time runs out. I smashed the lid and was so gutted I tried for hours online to find a replacement lid with no luck. I went shopping and bought a very cheap 6 to 7 Quart or 6 to 6.5 litre Slow cooker / Crock pot of the same shape the removable pot and lid fit. I bought a cookworks, signature, 24 euro 6.5 litre oval dog standard slow cooker and the lid fit, now I also have a removable pot replacement as well just in case I smash that too. So happy I have my Slow cooker back again.

Here all of the Cook's Essentials Manuals - click on the one that looks the most like your pressure cooker:
http://www.hippressurecooking.com/category/manuals/cooks-essentials/

pressure cooker cooks by the pressure inside the cooker.
So you need to put those on when cooking.
The excess pressure will automatically drain off.

Does anyone know if a replacement lid is available for this unit

usually the grip knob on top can be turned for preassure adj..