Why is the heater not working in my Dodge Sprinter van?

Possible Reasons for Dodge Sprinter Van Heater Not Working
The heater in a Dodge Sprinter van may fail to work due to various reasons. According to the search results, some common causes include issues with the heater blower motor, thermostat, heater blower motor resistor, coolant getting to the heater core, or the heater core itself [[4]]. If the heater is blowing cold air, it could be related to temperature regulation, while if the fan itself doesn’t work, it might be a mechanical issue.
Specific Components to Check
– Heater Blower Motor: The heater blower motor and its assembly, including the blower motor itself or the resistor, are common culprits for heater failures in the Dodge Sprinter.
– Coolant Circulation: Problems with the coolant getting to the heater core or issues with the heater core itself can also lead to a malfunctioning heater.
Maintenance Considerations
– Heater Control Valve: For owners of Mercedes Benz Sprinter vans, it’s recommended to be aware of the potential malfunction of the Sprinter heater control valve, especially in models from 2010 and later. The manufacturers recommend changing the heater valve at least once every 100,000 miles.
It’s important to consider these potential causes and have a professional mechanic inspect the specific components to diagnose and address the issue with the heater in the Dodge Sprinter van.

Why is my sprinter not blowing hot air?

In most cases this can be caused by the cooling system being low on coolant and you have trapped air in the cooling system or the heater core is restricted .

Where is the heater control valve on a sprinter?

Being as you are in Aus, you likely have a manual heater control system, so the valve is cable actuated and located behind the dash attached to the side of the heater core.

How do I fix my car heater blowing cold air?

When the thermostat can’t signal that the engine is warm, the coolant won’t be sent over to provide heat to the heater core and the air will blow cold. Solution: You need to install a new thermostat to get your heater working again. It’s a relatively quick and easy fix.

Why is my Mercedes blowing cold air?

In summary, a car heater blowing cold air can be caused by a variety of issues, including low coolant level, faulty thermostat, clogged heater core, airlock in the system, faulty blower motor, and electrical issues.

Why is my heat blowing but not hot?

It’s most likely an incorrect thermostat setting if you find your furnace blowing warm air, not hot. The fan is set to “on” instead of “auto.” Furnaces only pump hot air until the thermostat setting is reached, so if your fan is always on, it will blow both hot air when the furnace is heating and cold when it’s not.

What happens when a heater control valve fails?

Your car’s heater won’t turn on.
A broken heater control valve may be more obvious in the winter, because it will often prevent the heater from coming on inside your car. If your car refuses to get warm, schedule repair services right away so you can stay safe and comfortable in colder weather.

What to check when heater is not working?

WHAT TO DO IF YOUR HEATER STOPS WORKING

• See if the thermostat is responding.
• Check the thermostat settings.
• Change the air filter.
• Check the circuit breakers.
• Check the ON/OFF switch.
• Open and securely close the furnace door.
• Check the gas valve by your furnace.

Why is my Mercedes heater not blowing hot air?

One of the most common causes of a Mercedes-Benz car heater blowing cold air is a low coolant level. The coolant is responsible for keeping the engine at a stable temperature, and if the level is too low, the engine can overheat and the heater will blow cold air.

Why is my heater blowing cold air in my van?

A car heater can fail in several ways, but when it blows cold air, the two likely causes are that the coolant isn’t flowing through the heater core or air from the blower motor isn’t being directed through the heater core.

How do I know if my heater control valve is bad?

Signs of a bad heater control valve

1. No heat coming out.
2. Heat always on and cannot be turned down.
3. Heat output changes with no changes in the heat setting.
4. Temperature gauge reads hot.
5. Low coolant level.
6. Coolant leak.