Room Ac

Auto on feature does not work properly when I shut the fireplace in the lounge. AC run continuously.

you should never close any vents, this reduces the amount of air flow through the coil, and cause damage to your system ... if the thermostat is closer to the living room and the return air vent is closer to the bedroom than the living room, there would be no air circulation to the thermostat to detect the cooler air unless you got the house cooler than necessary to cause the unit to cut .. you would save more money by finding a comfortable temperature for you and always leave the unit set on the temperature and always leave .... all vents open if you buy a programmable thermostat, you can set it to allow your unit to come on early in the morning to freshen the house to a lower temperature than you would it set to keep the temperature at night. ..

The best way to save electricity is the temperature that the AC comes into play. Close the vents is not generally help save $ on heating or AC.

There are several reasons why it may or may not work. Firstly if your thermostat is located in or near your residence, you will be wasting more energy savings.
If you do not stay cool until the desired temperature, then the thermostat will never turn off the AC. However, if your thermostat is in or near your bedroom and your living room has a door so you can isolate the room from the rest of your home, you can save money.

It is possible that your room air conditioning is not set correctly. There is something called "shock absorbers" that control the flow of air in each room. If you find the rest of your house is cool while your room is hot, you might need an adjustment.

CA will continue until the thermostat gets the correct temperature, the thermostat is in the lobby, trying to cool the room at the desired temperature, so that works without trying to cool the room. you want to leave open the vent in the room where the thermostat is.

AC temp is set at 75 at night and during the 78 days to its lowest level.
Use a fan blowing on you during the day and night
You save 20% a month

the thermostat is set at a certain temperature, the CA will try to answer this temperature and these leads are closed or not, it will still try to cool the room off, if its in the living room, he will try to respond to this temperature. If you want to save energy keeping the thermostat around 77 degrees.

While idling at night is recommended during the winter for most types of heating system to save money and reduce costs, it is generally not recommended for heat pump less than a programmable thermostat designed specifically for use with a heat pump is used. When you have a heat pump and raise the temperature of the house in the morning, the extra heat may come to use more electricity than you saved during the night. Reduce thermostat settings for weekends or holidays during the heating season. Using a standard control automatic night setback with a heat pump is not recommended. Many manufacturers now offer programmable thermostats designed to reverse the night so that the auxiliary heater will not normally be turned on during the time the heating system is recovering. Do not block registers and return grills with furniture, drapes, carpets or. Although cutting the heat to unused rooms is often proposed as a conservation measure, we recommend that all records of providing a heat pump should remain open. The system is designed to heat or cool a specific area. If the airflow is reduced drastically, the compressor may be damaged.

I am not a mechanic but I am a CA Gasfitter licensed. I would check the location of your thermostat controlling the temperature AC.