*Clogged Condensate Drain:*
* The most likely cause is a clogged condensate drain.
* The condensate drain is a small tube that allows water from the air conditioner evaporator core to drain outside the vehicle.
* Check for any obstructions in the condensate drain tube.
* Clean out any dirt, debris, or leaves that may be blocking the water flow using a pipe-cleaner or compressed air.
*Faulty Expansion Valve:*
* A faulty expansion valve can cause the evaporator core to freeze up, blocking the airflow and causing the condensate to overflow and leak onto the floor.
* If the expansion valve is damaged or not functioning properly, it should be replaced.
*Leaking Evaporator Core:*
* A leak in the evaporator core inside the dashboard can also cause water to drip onto the floor.
* If the evaporator core is damaged or corroded, it will need to be replaced.
*Cracked AC Condenser:*
* A cracked condenser can leak refrigerant, causing the air conditioning system to malfunction.
* Coolant from the condenser can also leak into the passenger compartment.
* If the AC condenser is damaged, it should be replaced.
*Blower Fan:*
* If the blower fan is not working properly, it can cause water to accumulate in the evaporator core and overflow.
* Check the blower fan to ensure it is functioning correctly.
*Door Seals:*
* Check the weatherstripping around the doors to ensure they are intact and are not letting water into the vehicle.
* If the door seals are worn, cracked or damaged, they should be replaced to prevent water from entering the vehicle.
Note:*
If the floor mat is only damp and not soaked, it may be due to normal condensation.
Regular maintenance like changing the cabin air filter and cleaning the air vents can also help prevent such issues.
If the problem persists after you've checked and addressed these potential causes, take your vehicle to a qualified mechanic for further diagnosis and repair.
