Refrigerator noise comes from either the compressor under the fridge, the condenser fan motor under the fridge, or the evaporator fan motor inside the freezer. Open the freezer door while the fridge is running. If the noise doesn’t get louder when you open the freezer, pull out the fridge. Most refrigerators have a condenser fan motor. Unscrew the back cover and listen—you’ll be able to tell whether the noise is coming from the fan or the compressor. The best cure for a loud compressor is usually a new fridge. To replace the fan motor, remove its mounting screws, unplug it and install the new one. Get all the repair tips on a rowdy refrigerator.
Many gas fireplaces use a blower to drive warm air out into the room. They also have a fan speed adjustment switch so you can strike a balance between blower speed and noise level. But if the fan gets loaded with dust or the motor bearings wear, the blower will make a rumbling noise at all speeds. Sometimes it’s possible to remove the blower and clean the fan blades to quiet it. But if the blower still makes noise, it’s time to replace it. Here’s what to do when faced with a noisy fireplace.