It can catch fire because it over works its self and can be very dangerous.
300psi high side and 80psi low side
An AC unit can freeze up due to low airflow or low refrigerant levels. When this happens, it means that the system is not functioning properly and may need to be repaired by a professional to prevent further damage.
For a home air conditioning unit 35 psig low and 125 - 150 psig high (depending on outdoor temp) are desirable.
It means that the unit is low in freon and the line temperature is to low.
There could be a couple of issues. The main one is that the system is probably low on freon. This happens if there is a leak in the system somewhere. The other is that you are not getting enough air across the coil inside the unit. If the blower seems to be running fine and the filter is clean it is low on freon.
That depends on how low your income is and what your debt ratio is. It is still possible to save yourself from foreclosure if you can afford a normal mortgage payment. There is always the option to sell the home as well... but if you want to keep the home, you should probably try to qualify for a refinance loan.
Low pressure switch shutting the unit on and off. Possibly low on freon.
The compressor will not kick on or if it does, the low pressure return line ices up. Some refill cans come with an attached pressure gauge. They are usually under $20, and if you are undercharged, you can fill it. Get one and it will take the guessing out of the troubleshooting.
Low tides
it cant get low
In regards to a water chiller unit, the terms low pressure and high pressure refer to the compressor, which takes low pressure and compresses it into high pressure gas, which is then turned into a liquid to cool the unit.
a high unit contribution is preferred for profitability.