Could be a stuck open thermostat or low on coolant or the temperature blend door is faulty.
THE CAUSE for this is that when your cold air is on the petrol is used to create air. and that is how cars create cold air
The heater may blow cold air instead of warm air due to issues such as low coolant levels, a malfunctioning thermostat, a clogged heater core, or a faulty blend door. These problems can prevent the heater from properly warming the air before it is blown into the car.
A furnace may blow cold air instead of warm air due to issues such as a malfunctioning thermostat, a clogged air filter, a problem with the pilot light or ignition system, or low fuel supply. It is important to troubleshoot and address these issues promptly to restore the furnace's proper functioning.
The furnace may blow cold air instead of warm air due to issues such as a malfunctioning thermostat, a clogged air filter, a problem with the pilot light or ignition system, or low fuel supply. It is important to troubleshoot and address these issues promptly to restore the proper functioning of the furnace and ensure it blows warm air.
check your thermostat first
dual control damper needs replaced how do you change it
It doesn't really blow it out it just warms the cold air.
If it does blow just not cold air you should see if it needs to be recharged
An air conditioner blows out heat
A heat pump is designed to extract heat from the outside air, even during cold weather. It uses this extracted heat to warm the indoor air. This is why a heat pump blows warm air instead of cold air during operation.
Your heater may be blowing cold air instead of warm air due to issues such as a malfunctioning thermostat, a clogged air filter, low levels of coolant, or a problem with the heating element. It is recommended to have a professional inspect and repair your heater to resolve the issue.
Check temperature control cable for binding.