Will AC work if thermostat batteries are dead?
When your thermostat batteries die, you will see a black screen, the thermostat will stop working, and the heating or cooling units will not work. If, after the change of batteries, the thermostat and the heating and cooling systems start working, then everything should be back to working as normal.
Why does my AC not turn on after a battery swap?
Immediately afterward, the controls would only blow heat through the defrost setting, no matter what the dial was set to. Also, when I tried the AC the light on the button would just blink and never turn the AC on. Its a real pain in the butt that this happened just from a battery swap!!! I’ve never heard of that problem.
What to do if your air conditioner is inoperative after battery change?
When i put the originial back in the A/C wasnt working at all. Before the A/C was fine. I disconnected the battery for 45 minutes and disconnected the AC clutch relay for 3 minutes after connecting battery. I turned on the car, Didnt start the engine. Then i checked the A/C, which started right up.
What happens to the climate control when the battery is disconnected?
Here was my understanding. When the battery is disconnected the actuators controlling the climate control can lose their position. They think they are in the cold position when they are really in the hot. Disconnecting the battery again won’t correct it – it’s an on/off thing with the key.
How long does it take to reconnect a battery in a car?
Waited 45 minutes. 2. Reconnected battery – positive first, negative second. 3. Put parking brake on. Idled engine for 1 minute. 4. Started AC. Idled for 1 minute. 5. With brake on, idled engine for 1 minute each with Trans in: Reverse, Drive, OD, 1st.
Why do I have to disconnect then reconnect the battery?
By disconnecting and reconnecting the battery it doesn’t work every time but maybe after 5 or so tries. I have been pulling fuse 6 from the junction box which is in line with the security auto shut off. This does not seem to work. Another problem that just came about is sometimes while driving my rpms will go to zero then come back immediately.
Immediately afterward, the controls would only blow heat through the defrost setting, no matter what the dial was set to. Also, when I tried the AC the light on the button would just blink and never turn the AC on. Its a real pain in the butt that this happened just from a battery swap!!! I’ve never heard of that problem.
When i put the originial back in the A/C wasnt working at all. Before the A/C was fine. I disconnected the battery for 45 minutes and disconnected the AC clutch relay for 3 minutes after connecting battery. I turned on the car, Didnt start the engine. Then i checked the A/C, which started right up.
Here was my understanding. When the battery is disconnected the actuators controlling the climate control can lose their position. They think they are in the cold position when they are really in the hot. Disconnecting the battery again won’t correct it – it’s an on/off thing with the key.