1 Be sure the thermostat is set to the proper setting (Heat if you’re calling for heat and the temperature you want the room to be). If the thermostat was replaced recently, the new thermostat may either be the wrong type (it must be specifically a heat pump thermostat) or it may have been wired improperly. A mistakenly wired thermostat can fry electronic components, preventing the heat pump from working properly.
Before opening the electrical cover on the A/C unit, be sure to shut off all power to the compressor unit and the indoor furnace or air handler, and verify that it is off. Note that this may mean shutting off a circuit breaker that serves the furnace and air handler, and then, near the compressor, pulling out the disconnect block (or shutting off the 220-volt power) to the outdoor compressor.
Has another company told you that your furnace has a cracked heat exchanger? The heat exchanger is the heart of your furnace. Its failure can result in a dangerous situation for your home and the best solution is usually a new furnace. Because of these issues, Bonney takes this situation very seriously. We will offer you proof of the cracked heat exchanger in the form of a picture from our video inspection camera or a report from our exhaust gas analyzer, before we make our recommendation.
"Very impressed. Returned call within 24 hours. They came out the same day I spoke with them and made the repair within 25 minutes. Very low service call fee. I had another repair service out two weeks earlier and after 3 service calls and the central air still not fixed and temperatures in the high 90's, it was such a relief to have a company identify the problem, have the necessary part with them and fix the problem."