Today I showed up for an evaluation on a four-year-old heat pump unit was not running upon my arrival 3 amp fuse at the air handler control board had been blown replaced it and checked all low voltage connections both indoor and out as well as at the thermostat ran power to all Cycles including heat mode emergency heat and cool mode unable to recreate the issue left the unit running and heat mode thermostat was satisfied before I left homeowner decided to sign up for the home and budget protection plan spoke with her daughter over the phone Who provided the daughter's email address to be added to the account so that the daughter will receive all of the invoices moving forward there is an estimate for an Aprilaire upgrade kit the daughter will be reviewing this with the homeowner and getting back to us at a later date thank you for choosing comfort experts!