With summer days around the corner, everyone requires a properly working air conditioner that can provide a cooling effect. Let’s see some of the signs that can help you in knowing whether your air conditioner requires a change or repair. Warmth in airIf you experience warmth in the air blowing out of the vents, then check your thermostat and ensure that the air conditioner is in the cooling mode. For better air conditioning in Calgary, you can simply contact a good air conditioner maintenance company. Insufficient airflowIf your air conditioner is not blowing out enough cool air, then it's a sign of repair.