Nest thermostat causing higher electric bill

[Ryobi]

I moved into my house about 3 years ago and it came with a honeywell thermostat which we changed to the nest. When we had an AC repair person come out once to service the AC he told us some AC units dont work well with the AC and will actually cause the unit to work harder because it will kick on in heat mode then switch to cool. I could be saying this all wrong but the main point is that our electric bill keeps going up now with no end in sight. I know I’m in Florida and should just expect nothing but bills and bad things but this is ridiculous. Is there something we can do? Is this thing wired wrong?? I’ve spoken with customer support for nest and they say everything is wired properly. But my bill has gone up by about 40-60%. I checked our thermostat usage history and last Saturday shows 13 3/4 hrs. This is insane. We are very conscious of our usage!! Help please. Florida is too hot to not have AC. 

[HAHAfam]

Texan here! I’m having the same issue, except I moved in Yesterday! The unit has been running straight for 8 hours and we are still at a constant 81 inside the house. I can’t sleep, so here I am at 3:30 in the morning trying to working on a thermostat I have never seen or used. I have the temperature set and held at 50 and we haven’t dropped a single degree since 7pm last night. Fan is running but not cooling. 

[zoeuvre]

Hi folks,
 

Thanks for posting here in the Community forum, and I'm sorry to hear about the situation. Let me take a look at this for you. 
 

The Nest Thermostat uses 600 to 700 milliwatts of power per month, which is less than 1 kWh per month. When the system is turned off, it consumes 23 kWh of power, with 3 kW being used by the thermostats. The HVAC system's internal control board consumes 600 W of power per month, while the compressor and blower motor consume 3000 to 6000 kWh per hour of operation. Wall-plugged-in transformers, TVs, and refrigerators also consume power during the day and night.
 

To determine the power consumption, turn off all circuit breakers and measure the current draw for each circuit individually using an amp clamp probe. This will help identify which circuits draw the most power when not in use or when used, such as lights.
 

Keep us posted. We're happy to help.

Best,

Zoe

[Dan_A]

Hey there,

I wanted to follow up and see if you still needed help. Please let me know if you still have any concerns or questions from here, as I would be happy to take a closer look and assist you further.

Regards,

Dan

[Dan_A]

Hello again,

We haven't heard from you in a while, so we'll be locking this thread if there is no update within 24 hours. If you need assistance or want to discuss topics, feel free to start a new thread.
 

Cheers,

Dan