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Error code reference

Indesit Dryer Error Code H20

Water container is full

Indesit codesIndesit dryer codes

Water container is full - float switch has activated; heater turns off, cool tumble for 10 minutes then fault displayed.

First step from the service manual

Empty the water container, then press the Start/Pause button to continue the cycle.

The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.

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What H20 means on a Indesit dryer

The H20 error code on an Indesit dryer indicates that the condensate water container has reached its maximum capacity. Indesit condenser dryers collect moisture extracted from laundry into an internal reservoir rather than venting it externally. When this reservoir fills, a float switch activates, signaling the control board that drainage is no longer possible. The dryer responds by cutting power to the heater element immediately to prevent overheating or water overflow.

Once the float switch trips, the drum continues to rotate for approximately 10 minutes in a cool tumble cycle. This cool-down phase protects both the laundry and internal components from residual heat before the machine halts and displays the H20 fault code. The float switch is a straightforward electromechanical component: as water rises in the reservoir, a buoyant float lifts and opens or closes a circuit to send the fault signal to the control board.

The most common trigger is simply forgetting to empty the water container between cycles or after heavily loaded loads. However, if the fault appears with a container that is not full, the float switch itself may be stuck, corroded, or faulty, or the container may not be seated correctly, causing the float mechanism to read a false full level. A blocked or kinked drain hose, if the unit is plumbed directly to a drain, can also cause water to back up and trigger the switch prematurely.

Source: manufacturer service documentation.

Common causes of H20

  1. 01

    Full water container

    Wiring / connection

    The condensate reservoir has reached capacity during or between cycles. This is the most frequent cause and is resolved simply by removing and emptying the container.

  2. 02

    Forgot to empty container after previous cycle

    Wiring / connection

    If the container was not emptied after the last use, it may fill quickly during the next cycle, especially with large or heavily saturated loads. Checking the container before each cycle prevents this.

  3. 03

    Water container not seated correctly

    Wiring / connection

    If the container is not fully pushed back into its housing after emptying, the float switch mechanism may be triggered even when the container is empty or only partially full. Remove and firmly reseat the container to resolve this.

  4. 04

    Faulty or stuck float switch

    Part replacement

    If the container is empty but H20 still appears, the float switch may be stuck in the activated position due to scale buildup, corrosion, or mechanical failure. Inspecting and testing the float switch with a multimeter, or replacing it, is the next step.

  5. 05

    Blocked or kinked drain hose (plumbed installations)

    Wiring / connection

    On units connected directly to a household drain rather than using the collection container, a blocked or kinked drain hose prevents water from evacuating properly, causing a backup that activates the float switch prematurely. Inspect the hose routing and clear any obstruction.

See the test procedure for each cause

Frequently asked questions about H20

What does H20 mean on a Indesit dryer?
H20 means the water collection container inside your Indesit condenser dryer is full and the float switch has activated. The dryer cuts the heater and runs a cool tumble for about 10 minutes before displaying the fault. Emptying the water container and pressing Start/Pause will typically clear the code and allow the cycle to continue.
How do I fix the H20 error on my Indesit dryer?
Pull out the water container, empty it completely, and slide it firmly back into its housing until it clicks into place. Then press the Start/Pause button to resume the cycle. If the error returns immediately with an empty container, check that the container is fully seated and inspect the float switch for any signs of sticking or damage.
Will resetting the dryer clear the H20 error code?
A power reset alone will not permanently clear H20 because the float switch will continue to signal a full container until the water is actually removed. You must empty the water container first. Once emptied and the container is reseated, pressing Start/Pause is the correct way to resume normal operation.
Is the H20 error on an Indesit dryer a safety risk?
The H20 fault is a protective feature, not a danger sign. The dryer shuts off the heater and runs a cool tumble cycle specifically to prevent any safety issues from continuing to heat with no capacity to collect water. As long as you empty the container and do not attempt to override the fault, there is no safety concern associated with this code.
How much does it cost to repair an Indesit dryer showing H20?
In most cases there is no repair cost at all since H20 is resolved by simply emptying the water container. If the float switch is found to be faulty and needs replacement, parts typically cost in the range of $10 to $40 depending on the component, plus any labor charges if a technician is involved. A blocked drain hose on a plumbed installation can usually be cleared without any parts cost.

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