i think what you are refering to is a blower staying on all the time, if so the blower motor has shorted the control module, you need to replace the blower motor and control module.
If the AC control is always blowing hot air, the AC control head has failed.
If you have the heat on in the defrost position , the air conditioning compressor will cycle on and off to help dehumidify the air if the outside temperature is about 50 degrees Fahrenheit or warmer
The AC runs to remove moisture from the air inside your vehicle. Moisture causes the fog inside of your windows. The ac runs to remove the moisture and the heater runs to heat the air.
Heat pumps have the ability to heat your home in the winter, standard ac just cools in the summer.
It seems as if there is a problem with the wiring between your speedometer and AC/heat unit. A licensed repairman can determine and fix the cause of this problem.
Bad Thermostat
This usually happens because the AC is set to heat and not cool. If it is set to cool then get it checked out by a qualified AC technician.
Air conditioning (AC) systems do not produce cold air; instead, they remove heat and humidity from the indoor air. The process involves circulating warm air over evaporator coils containing refrigerant, which absorbs heat and cools the air before it is redistributed into the room. This results in a cooler indoor environment, making it feel as though the AC is producing cold air.
Imagine a window AC unit installed backwards, rejecting heat indoors while air conditioning the world, this is a heat pumps heat mode. As the unit is air conditioning in the cool outdoors eventually the outdoor coil will ice up requiring a defrost cycle, defrost is the AC mode except the outdoor fans off to assist with the defrosting. A defrost cycle is time and temperature initiated, time or temperature terminated.
Have you checked the 30 Amp fuse ?
Yes, a landlord can turn off your AC if you do not pay fines and taxes.
You need to learn to ask a question in a coherent manner. I don't understand your question.