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Error code reference

Fisher & Paykel Refrigerator Error Code 18

Evaporator fan not on

Fisher & Paykel codesFisher & Paykel refrigerator codes

Evaporator fan not on - evaporator fan is rotating less than expected; either the wiring is open circuit or the fan is faulty.

First step from the service manual

Check the evaporator fan wiring, connections and fan function. If OK, replace the power/control module. If still faulty, replace the display module.

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

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What 18 means on a Fisher & Paykel refrigerator

Error code 18 on a Fisher & Paykel refrigerator indicates that the evaporator fan is not running at the expected rotational speed. The control system monitors fan RPM and triggers this fault when the fan falls below the minimum threshold. The evaporator fan is responsible for circulating air across the evaporator coils and distributing cold air throughout the refrigerator and freezer compartments. Without adequate fan operation, cooling performance degrades significantly and temperatures will rise.

The fault is caused by one of two primary conditions: an open circuit in the wiring harness feeding the evaporator fan motor, or a mechanically or electrically failed fan motor itself. An open circuit can result from a loose connector, a damaged wire, or corroded terminals anywhere along the fan circuit. A failed fan motor may have seized bearings, a burned winding, or a faulty internal speed sensor that reports incorrect RPM data back to the control module.

Diagnosis begins with a physical inspection of the evaporator fan wiring, connectors, and the fan blade for obstructions or bearing failure. If the wiring and fan check out as functional, the fault shifts to the control electronics. The power/control module is replaced next, as it manages fan output signals. If the fault persists after replacing that module, the display module is the final suspect, since it plays a role in the system's overall communication and fault-reporting logic.

Source: manufacturer service documentation.

Common causes of 18

  1. 01

    Failed evaporator fan motor

    Part replacement

    The fan motor itself may have seized bearings, a burned winding, or a faulty internal speed sensor. A failed motor will either not spin at all or spin too slowly for the control system to register as acceptable.

  2. 02

    Open circuit in fan wiring harness

    Wiring / connection

    A broken wire, disconnected connector, or corroded terminal in the evaporator fan wiring circuit can interrupt power or signal to the fan motor. Inspect the full length of the harness and all connectors for damage.

  3. 03

    Loose or corroded fan connector

    Wiring / connection

    Connector pins at the fan motor or at the control board can loosen or corrode over time, causing intermittent or complete loss of continuity. Reseating or cleaning the connectors may resolve the fault.

  4. 04

    Faulty power/control module

    Part replacement

    If the wiring and fan motor test as functional, the power/control module may be failing to deliver the correct output signal to the fan. Replacing this module is the next recommended step after ruling out wiring and fan issues.

  5. 05

    Faulty display module

    Part replacement

    If replacing the power/control module does not clear the fault, the display module may be misreporting or misinterpreting fan speed data. This is the least common cause and is addressed last in the diagnostic sequence.

See the test procedure for each cause

Frequently asked questions about 18

What does 18 mean on a Fisher & Paykel refrigerator?
Error code 18 means the evaporator fan is rotating slower than expected, or not at all. The control system monitors fan speed and triggers this code when the fan fails to meet its minimum RPM threshold. The cause is either an open circuit in the fan wiring or a faulty fan motor. In some cases, the power/control module or display module can also be responsible.
Can I fix error code 18 on my Fisher & Paykel refrigerator myself?
A knowledgeable DIYer can check the evaporator fan wiring and connectors for visible damage, corrosion, or loose connections, and verify that the fan blade spins freely without obstruction. If those checks pass, replacing the power/control module or display module typically requires comfort with appliance disassembly and electrical components. If you are not confident working with refrigerator internals, a qualified technician is recommended.
Is it safe to keep using my refrigerator when error code 18 is displayed?
Continuing to run the refrigerator with error code 18 active is not recommended for food safety. The evaporator fan circulates cold air throughout the compartments, and if it is not running properly, temperatures may rise to levels where food spoilage or bacterial growth becomes a risk. Perishable items should be moved to another refrigerator until the fault is resolved.
How much does it cost to repair error code 18 on a Fisher & Paykel refrigerator?
Repair costs vary depending on which component is at fault. An evaporator fan motor replacement typically falls in the range of $100 to $250 including parts and labor. If the power/control module or display module needs replacement, costs can range from $150 to $400 or more depending on part pricing and labor rates in your area.
Will resetting my Fisher & Paykel refrigerator clear error code 18?
A reset may temporarily clear the error code from the display, but it will return if the underlying fault is not corrected. Error code 18 is triggered by an active hardware condition, specifically the fan not meeting its minimum speed requirement. The fan wiring, fan motor, and control modules need to be inspected and repaired or replaced to permanently resolve the fault.

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