ac stopped working after battery change

How to Fix a Honeywell Thermostat that Stops Working After Battery Change 1. Alternatively you could disconnect the battery in case you are unsure which fuse to pull or the fuse method doesnt work.

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Switch off your AC.

. Also when you check the fuses also confirm there is power to them. Ad Talk To Top Rated Local Heat Furnace Experts In Minutes. Finally you may need to take the car to the dealer for a computer reset.

With the car off unplug the climate control or HVAC fuse and wait 30 seconds before plugging it back in. Here is a link you may find helpful. When the thermostat is off an air conditioner wont accept power from the electricity points.

I put in a conversion kit for air ride in my 2004 escalde. Check the fuses related. It did this once after we had to jump it off because of the dead battery but it started back working fine after the next time we started the car.

First I attached the entire wiring schematic below for the HVAC system. Here was my understanding. Using a paper clip or a pair of metal tweezers place one leg into the hole marked ac and touch the other leg against the main movement housing or the watch.

Putting in incorrect batteries is a common reason why this device doesnt work properly after a battery change. I have a 2008 528i and just replaced the battery. I am not paying 228 for the dealer to replace a battery.

While it may seem impossible one of the most common reasons a thermostat stops working after you change the batteries is because the batteries were incorrectly installed. The first things to check are the fuses. In the following article well explore just some of the reasons your AC is not working after changing the thermostat.

In order to rule out battery installation as the cause for your thermostat not working follow the steps below. Fuses 85 and 71 in the interior fuse box under the left side of the dash. Bezel 90 clockwise Press AC switch orcounterclockwise connector.

7 Jun 24 2009. After power outages happen youll have to turn the thermostat to the off position. It may be possible that one of the fuses or relays blew when the battery or alternator were disconnected.

Before doing anything too rash like taking apart your new thermostat the first thing youll want to double-check is your thermostat settings. Herculean strength isnt necessary but the cables should be snug and not. The drivers side seat will not move my daughter said she got in put the key in the ignition and the seat moved back and stopped and not longer moves.

Let the car calibrate the sensors. Now my abs light and traction control light willnot go off. If youre experiencing electrical issues immediately after a battery replacement or disconnect make sure the battery cables were re-attached and tightened down properly.

Well guys I tried to reset the system. Now the air conditioner will not properly work. Most batteries require a 15v AA alkaline battery.

Our thermostat died yesterday but after replacing the dead batteries with fresh batteries and confirming the LCD screen was operable our AC no longer turns on. It could be a simple issue with your settings. The arcing during battery reconnect is typical if one or more electric services were turned on at the time like your stereo or alarm.

Sometimes it will slowly blow some cold air but it will not blow as strong as it should. When the battery is disconnected the actuators controlling the climate control can lose their position. Ac doesnt work after battery change it blows hot air fuses are visually intact ac button doesnt light up any suggestions would be greatly appreciated 2004 chevy silverado 2500hd.

The thermostat has not been reset after changing the batteries Wrong batteries have been used Batteries have been inserted incorrectly An acid leak into the thermostat The wall-mounted thermostat is not making contact The thermostat might have been accidentally set to heat. I then pulled all 3 fuses and waited a while. My console reads service ride control and service stability.

Then I got back in and turned the truck on for a minute or so then started it up. With the car off unplug the climate control or HVAC fuse and wait 30 seconds before plugging it back in. Open the thermostat in order to access the battery chamber.

Share Improve this answer. While it may seem impossible one of the most common reasons a thermostat stops working after you change the batteries is because the batteries were incorrectly installed. Once the battery and its immediate circuits are verified double check that no AC wiring was interfered with during the original installation process.

Up to 8 cash back Make sure the battery cables are corrosion free and have a clean and tight ground connection. After restoring power start the car and do not touch any controls. I have attempted a factory reset on the thermostat and I do hear a quiet but definitive click when I believe it is attempting to activate the HVAC unit but thats as far as it gets.

They think they are in the cold position when they are really in the hot. Then I shut it off and got out and closed the door and waited a few more minutes. When the battery is disconnected the actuators controlling the climate control can lose their position.

Up to 8 cash back If you recently serviced the electrical system and now your AC is no longer working then it may be possible that the issue is related to the work. Then I put them back in and turned the truck on but did not start it. Also reset the air conditioner battery pack to see if it resolves the thermostat issue.

There are multiple factors that you should consider when choosing the right batteries for your thermostat. I first tried turning the key on 5 times and that didnt work. The first thing I would do is check the vehicles fuses and relays.

A simple way to do this is to check the inside of the battery compartment. Disconnecting the battery again wont correct it - its an onoff thing with the key. The electronics of some newer cars can go into an incoherent state after a battery disconnect.

Reasons why your AC is not working after a thermostat battery change. Its possible something was pumped or snagged.

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