Occasional serious weather might lead to the need for an A/C service even though your cooling system was engineered to endure all unusual kinds of weather. Bad weather often corresponds with power surges. Power surges and electronics do not go well together and since your Heating and Air Conditioning system is electronic, you should take the right steps to protect it. In the most serious weather conditions, it may be wise to turn off your system using your control device and turn off the circuit breaker to protect your system in the best way. There is no need to cover the outside device while I was in raining weather because your A/C was made to handle rain and snow, and falling or flying objects in windy weather can threaten your AC. Although it is hard to prevent, keeping loose outdoor items secured can help lower the chance of your A/C system getting injured. Your A/C was made to withstand high outside temperatures, but, the hotter the sun, the harder your A/C has to work to cool your home. You can prevent wear and tear by keeping your temperature setting a little higher on these days. The closer that your inside temperature is to the outside temperature, the less that the A/C will have to work. Inclement weather can have a huge effect on your Heating and Air Conditioning system however taking the right steps to protect your system will make a difference in the aftermath with the unusual weather changes.