How do i check for overcharge refrigerator with 404a

The ideal suction and discharge pressures for a Flex Ice Machine using 404a refrigerant can vary depending on several factors, including the ambient temperature and the load on the machine. However, here are some general guidelines: Suction pressure: The suction pressure should typically be in the range of 30-45 psi (pounds per square inch) for a 404a refrigerant system. This pressure corresponds to a saturation temperature of around 20-30°F (-6.7 to -1.1°C). Discharge pressure: The discharge pressure should typically be in the range of 225-250 psi. This pressure corresponds to a saturation temperature of around 100-110°F (37.8 to 43.3°C). It's important to note that these are general guidelines, and the ideal pressures can vary based on the specific conditions of the system. It's also important to ensure that the pressures are within the manufacturer's recommended range, as pressures that are too high or too low can indicate a problem with the system. If you are experiencing issues with your Flex Ice Machine, it's recommended to consult a qualified technician for assistance.

What is your question I wonder ........................

Over filling may be the cause of the problem, water solenoid valve not working, bad float switch, bad timer. If all other sequence check out ok, then I would be looking at the water valve power and capability to shut water off.

no on heat most possible problems freon leak -thermostat -dirty condenser -fan failure or compressor

If your running 134 a your short of gas
if your running 404a your short of gas
check the super heat it should be 5 ktd

here I replaced compressor. and charge with 404A

as long as you recovered the charge, pulled a vacuum, changed the filter/dryer, and added the correct amount of refrigerant as a liquid, you should be good to go.

You have non-condensables in the system. Recover refrigerant, change drier and evacuate through both high and low side.

http://www.refrigerants.com/pics/ptchart.pdf

Those freezers utilize R-404A refrigerant. The amount of refrigerant will be displayed on the data plate on the inside of the unit usually on the left inside panel. It will have the type and weight of refrigerant...

However, yes, 1.6 lbs sounds about right for those models.