No Power / Not Function A/C, Whole House, Air Condition, Central Air Unit

no power / not functioning A/C, Whole House, Air Condition, Central Air Unit.
I AM NOT AN ELECTRICIAN or QUALIFIED HVAC TECHNICIAN. I only offer POSSIBLE solutions for general loss of power or lack of function of a standard air conditioning / heating unit. I DO NOT ASSUME RESPONSIBILITY FOR YOUR HANDS ON ACTIONS. I STRONGLY URGE YOU TO CONTACT THE PROPER SERVICING TECHNICIAN TO FIX YOUR A/C UNIT. Should you want to check some basic things that may create a loss of power or function, here are a few steps that you can put into practice.
1. Check circuit breaker to be sure it is in the full ON position ( fully pushed toward the center line of the breaker box panel). If it doesn't/ can't move toward the center line of the breaker box, that means IT IS functioning properly. If it "wiggles" or is positioned toward the outer edge of the breaker box panel, then you need to reset the switch by pushing the switch toward the outside edge of the breaker box to turn the power off, then push toward the center of the box to turn power back on.
2. Most modern Central air units should have a wall switch (light switch) next to the unit to cut the power in an emergency. Check this switch to be sure it hasn't been turned off somehow.
3. Check to see if your unit has an indicator light. If there is an indicator light, and it is blinking, then you need to pay attention to see if it is steady or flashing a "code". Then, check the sticker to see what those flashes mean. If the indicator light does not flash, then check the connections coming in from the main power wire for proper / secure wire connections to the unit. Gently tug at the wires or gently twist wire caps to be sure wire caps are screwed on tightly
4. Check your condensate pump for proper function. Pull out one of the plugs and fill it with water. If it pumps out, then you may need a service tech. If it does not pump the water, then check the pump for power. It may have a loose connection or a shorted wire that will need to be corrected. If connections are good, and there is power going to the pump, then you may need to fix / replace the condensate pump.
5. If the above tests do not power up the unit or allow the unit to function, then I suggest contacting a professional to come service the unit. There is so much more that could be in
disrepair, but UNLESS you are comfortable and QUALIFIED to service an air unit that uses a 240V electric circuit, then by all means, DO NOT ATTEMPT SERVICING YOUR AIR CONDITIONER UNIT. PLEASE CALL A QUALIFIED HVAC SERVICE TECHNICIAN. DO NOT PUT YOU LIFE OR LIVES OF OTHERS IN DANGER. You will spend less on parts and service than you ever will on hospital or funeral bills. Think about it. ALWAYS BE SAFE