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Error code reference

Fisher & Paykel Washer Error Code HOT flashing

Hot water supply issue detected

Fisher & Paykel codesFisher & Paykel washer codes

Hot water supply issue detected - hot faucet not turned on, inlet hose screens blocked, hot water not hot enough for selected temperature, or inlet hoses connected wrong way around.

First step from the service manual

Check that the hot faucet has been turned on.

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

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What HOT flashing means on a Fisher & Paykel washer

The HOT flashing error on a Fisher & Paykel washer indicates that the machine has detected a problem with the hot water supply during a wash cycle that requires hot water. The washer monitors incoming water temperature to verify that hot water is being delivered at an appropriate level for the selected wash cycle. When the detected temperature falls below the expected threshold, or when water flow from the hot inlet is absent entirely, the machine halts and flashes the HOT indicator to alert the user.

The most fundamental cause is simply that the hot water supply faucet behind the machine has not been opened. Fisher & Paykel washers require both hot and cold faucets to be fully open for dual-inlet models. Beyond this, the inlet hose screens, which are small mesh filters located at the connection points between the hoses and the machine, can become clogged with sediment and mineral deposits over time, restricting hot water flow to a point where the machine cannot confirm adequate supply.

Another common source of this error is reversed inlet hose connections. If the hot and cold hoses have been swapped at either the machine or the wall connections, the washer will not receive hot water through its designated hot inlet. Additionally, if the household hot water heater is set too low, or if hot water has been depleted by recent use, the incoming water temperature may not meet the minimum requirement for the selected cycle, triggering the flashing HOT indicator.

Source: manufacturer service documentation.

Common causes of HOT flashing

  1. 01

    Hot water faucet not turned on

    Wiring / connection

    The hot water supply valve behind the washer may be closed or only partially open, preventing hot water from reaching the machine. Check that the valve is fully open and that water flows freely when the hose is disconnected.

  2. 02

    Clogged inlet hose screens

    Wiring / connection

    Small mesh filter screens at the hot water inlet connection can accumulate sediment and mineral scale, severely restricting flow. Remove the hot water hose from the back of the machine and inspect the screen for debris, rinsing or replacing it as needed.

  3. 03

    Inlet hoses connected incorrectly

    Wiring / connection

    If the hot and cold inlet hoses have been swapped, the machine will receive cold water through its hot inlet and register the error. Verify that the hose from the hot faucet connects to the hot inlet port on the washer, typically labeled with an H or red marking.

  4. 04

    Hot water not hot enough for selected cycle

    Wiring / connection

    If the household water heater is set too low or has been recently depleted, the incoming water temperature may not satisfy the minimum requirement for the chosen wash temperature. Check your water heater setting and allow it to fully recover before restarting the cycle.

  5. 05

    Damaged or kinked hot water inlet hose

    Part replacement

    A kinked, pinched, or internally damaged hot water hose can restrict flow enough to trigger the error even when the faucet is open. Inspect the full length of the hot inlet hose for bends, kinks, or visible damage and replace it if compromised.

See the test procedure for each cause

Frequently asked questions about HOT flashing

What does HOT flashing mean on a Fisher & Paykel washer?
The HOT flashing error means the washer has detected a problem with its hot water supply. The machine expected to receive hot water for the selected cycle but either received none, received water at too low a temperature, or detected restricted flow. Common causes include a closed hot water faucet, clogged inlet screens, reversed hose connections, or insufficient water heater output.
How do I fix the HOT flashing error on my Fisher & Paykel washer?
Start by confirming the hot water faucet behind the machine is fully open. Next, check that the hot and cold inlet hoses are connected to their correct ports on both the wall and the machine. If those steps check out, remove the hot water hose from the machine inlet and inspect the small mesh screen for sediment or scale buildup, cleaning it with a brush under running water. Finally, verify that your water heater is set to an adequate temperature and has not been recently depleted.
Is it safe to keep using my washer when the HOT error is flashing?
The washer halts the cycle when the HOT error appears, so it will not continue operating in an unsafe condition. You should not attempt to force the cycle to continue without resolving the underlying water supply issue, as this could result in improper washing results or repeated fault conditions. Address the cause of the error before restarting the machine.
Will resetting my Fisher & Paykel washer clear the HOT flashing error?
A reset may clear the flashing indicator temporarily, but the error will return if the underlying hot water supply problem has not been corrected. Resolve the root cause first, such as opening the hot faucet or clearing clogged inlet screens, and then restart the cycle. The machine should proceed normally once it confirms adequate hot water delivery.
How much does it cost to fix the HOT flashing error on a Fisher & Paykel washer?
If the fix involves simply opening a closed faucet, reversing hose connections, or cleaning the inlet screens, there is no parts cost involved and you can resolve it yourself at no charge. If the hot water inlet hose needs replacement, hoses typically cost in the range of $15 to $40 depending on the model. If a technician visit is needed to diagnose or replace a faulty water inlet valve, service call and parts costs could range from $100 to $250 or more depending on your location and the specific parts required.

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