After a thunder storm my roof mounted Carrier cooling/heating unit stopped working and now does nothing. Changed the time delay fuses and checked the circuit breakers and they seem fine. Is there a reset button on the unit itself?

Hi,
You may have a circuit board problem. Make sure you have power to the unit first. If you can, get on the roof take the access panel off to the electrical components. Most carrier circ boards have a flashing light display on the board itself. On the back of the panel you just took off should be a kiosk that tells you what the flashing means. If the light is dead, no color but you are sure there is power to the unit, the board is bad or there could be a fuse blown on the board. Most circ board fuses are a small 3 or 5 amp blade fuse mounted right on the circ board. I have seen many a carrier board burn out because of lightning. I hope this is not the case for you, as carrier boards are just a little expensive. Hope this helps you get some air back. Mark