What is EC error in AC?
An EC error on your air conditioning unit means that your system is experiencing a Refrigerant Leakage Detection Error. In other words, the system has found a leak.
What are the most common problems with defrosters?
Here are 12 common problems, or steps to go through, in order to troubleshoot the car defroster properly. 1. Buttons and Knobs Sometimes a malfunctioning defroster is due to buttons or knobs for the heat or defroster that have become stuck. This can be solved easily by turning them back and forth until they stay in the position for the defroster.
How does the climate system control the defroster?
The climate system is responsible for controlling the position of the defroster actuator which is connected to the air position door in the heater plenum. This actuator controls defrost, middle and lower air vents. When it fails it can do so in the defrost position and must be replaced.
Why do I hear a hissing sound when my defroster is on?
If you can hear a hissing sound when the car is running from under the dash then vacuum is escaping. This kind of system also uses a check valve which will allow the vent system to engage the defroster when travelling up a hill when engine vacuum is low. This is a sign that the check valve is bad and replacement is needed.
How do you turn on the defrost on a Mercedes Benz?
Press recirculated air and defrost buttons on control panel together for longer than 5 seconds. The LED’s in the defrost and recirculated air buttons flash alternately. Wait until the LED’s stop flashing (approx 30 sec) system set to defrost LED on.
Press recirculated air and defrost buttons on control panel together for longer than 5 seconds. The LED’s in the defrost and recirculated air buttons flash alternately. Wait until the LED’s stop flashing (approx 30 sec) system set to defrost LED on.
The climate system is responsible for controlling the position of the defroster actuator which is connected to the air position door in the heater plenum. This actuator controls defrost, middle and lower air vents. When it fails it can do so in the defrost position and must be replaced.
Why does the EC button not turn on?
“If you have a control unit where the EC button remains illuminated you most likely have a stored DTC code or a version coding error for refrigerant level sensor. In order for the compressor to be turned on DTC codes need to be cleared and the coding needs to be corrected.”
If you can hear a hissing sound when the car is running from under the dash then vacuum is escaping. This kind of system also uses a check valve which will allow the vent system to engage the defroster when travelling up a hill when engine vacuum is low. This is a sign that the check valve is bad and replacement is needed.