Hi This is my 1st summer owning this house. My electric bill has been doubling for 3 months in a row..I have a Carrier 25HPA6 Performance Series 2 Stage Heat Pump...I recently went online and found instructions on how to clean the outdoor unit. I did so and it was not very dirty. I also have a generator that kicks on when I lose power which does not support the AC unit..We did lose power for a few days recently. I have 2 faults showing on the heat pump unit..one being 53 outdoor air sensor not reading or out of range 255 events and F 37 control fault, heater stuck on 13 events.It is set to cool and the fan to auto. I have never had a heat pump or central Air and am very green to this.The previous owners left no manuals.I have found one online but for installation only. PLease help?

Cleaning the debris that builds up on your filters will aid with the flow of air. When your air filter is clogged, your air handler must work harder to compensate for the blockage of air flow. In addition to driving up your utility bill, the reduced air flow through your heating and cooling system can cause your heat exchanger to overheat and shut off too quickly.    
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