What Does The Blue Boat Mean In A Car? Coolant temperature warning light When the light is blue, the coolant temperature is low. This is why it lights up blue when you start your vehicle. … When the light blinks red, the coolant temperature is high. It means your engine is close to overheating and
Why Does My Furnace Blower Keeps Turning On And Off? If your blower is constantly turning on/off when the furnace isn’t heating… …you most likely have a bad fan limit switch. … The system uses a “temperature probe” to detect temperature changes inside the heat exchanger (see image below) and turns your blower on and
How Do I Stop My AC From Short Cycling? Check your air filter. Believe it or not, a clogged air filter can cause a wide variety of air conditioning issues. … Check your thermostat placement. … Check your air conditioner’s refrigerant levels. … Replace the low-pressure control switch. … Check the compressor. Why does my
How Do You Know If Your Car Thermostat Is Broken? The temperature gauge reads high and the engine overheats. The temperature changes erratically. The vehicle’s coolant leaks around the thermostat or under the vehicle. How do you test a car thermostat? The temperature gauge reads high and the engine overheats. The temperature changes erratically. The