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Error code reference

Fisher & Paykel Refrigerator Error Code 34

Both Solenoid Drivers 1 and 2 have been detected to have a fault.

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Both Solenoid Drivers 1 and 2 have been detected to have a fault.

First step from the service manual

Check the solenoid resistance. If not within limits, replace the solenoid. If OK, 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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  • Step-by-step tests with expected resistance, voltage, and continuity values
  • Wiring diagram references and connector pinouts from the OEM service manual
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What 34 means on a Fisher & Paykel refrigerator

Error code 34 on a Fisher & Paykel refrigerator indicates that faults have been detected simultaneously on both Solenoid Driver 1 and Solenoid Driver 2. These solenoid drivers are output circuits on the control or display module responsible for energizing solenoid valves, which typically control water and ice functions such as the water inlet valve or ice maker valve operation. When the control system detects that both driver circuits have failed rather than just one, it flags a combined fault code rather than two separate single-driver codes.

The most likely root cause is a problem with the solenoids themselves. Each solenoid has a specific acceptable resistance range, and a winding that has shorted or opened will present an out-of-range resistance to the driver circuit. Because both drivers are reported faulty at the same time, the issue may stem from a shared power supply rail to the solenoids, a wiring harness fault affecting both circuits, or two solenoids that have independently failed. Corrosion, water ingress near the valve connectors, and age-related coil degradation are common contributors.

If solenoid resistance checks out within the acceptable limits on both circuits, the fault lies in the display module itself, which houses the driver electronics. A failed driver transistor or integrated driver component on the board can cause both outputs to read as faulty simultaneously. The diagnostic path is straightforward: measure solenoid resistance first, replace any out-of-spec solenoid, and if the solenoids pass, replace the display module to resolve the fault.

Source: manufacturer service documentation.

Common causes of 34

  1. 01

    Failed solenoid coil on one or both valves

    Part replacement

    A solenoid coil that has shorted or opened will present a resistance value outside the acceptable range, triggering a driver fault. Testing resistance at the solenoid connector will confirm this quickly.

  2. 02

    Wiring harness fault affecting both solenoid circuits

    Wiring / connection

    A damaged, corroded, or pinched wiring harness section shared by both solenoid circuits can cause both driver faults to appear at once. Inspect the harness routing from the control module to the valve assembly for visible damage or corrosion at connectors.

  3. 03

    Water or moisture ingress at solenoid connectors

    Wiring / connection

    Water leaks near the valve assembly can corrode connector pins or short the solenoid windings, pushing resistance out of spec. Look for mineral deposits, rust, or moisture at the connector housing.

  4. 04

    Failed display module solenoid driver circuits

    Part replacement

    If both solenoids test within resistance limits, the driver transistors or output circuits on the display module have likely failed. This requires replacing the display module to restore normal operation.

  5. 05

    Age-related solenoid coil degradation

    Part replacement

    Over time, solenoid coil insulation breaks down and resistance drifts out of the acceptable range. This is more common on older units and typically affects both valves if they are original components of similar age.

See the test procedure for each cause

Frequently asked questions about 34

What does 34 mean on a Fisher & Paykel refrigerator?
Error code 34 means the refrigerator's control system has detected faults on both Solenoid Driver 1 and Solenoid Driver 2 at the same time. These drivers power the solenoid valves that control water and ice maker functions. The fault can originate in the solenoid coils themselves or in the display module's driver circuitry. A resistance check of each solenoid is the recommended first step to isolate the cause.
Can I fix error code 34 myself on a Fisher & Paykel refrigerator?
A knowledgeable DIYer can perform the initial solenoid resistance test using a multimeter if they are comfortable working with appliance wiring. If a solenoid is out of spec, replacing the valve is a manageable repair. However, if the solenoids pass and the display module needs replacement, that repair involves more disassembly and may be better handled by a qualified technician.
Will resetting the refrigerator clear error code 34?
A power reset may temporarily clear the error display, but the code will return if the underlying fault is not corrected. Because code 34 reflects a hardware fault in the solenoid driver circuits, the solenoids or display module must be tested and repaired before the error will stay cleared permanently.
Is it safe to keep using my refrigerator when error code 34 is showing?
The refrigerator's cooling function may continue to operate, but water dispensing or ice maker functions are likely impaired or non-functional when this code is active. It is generally safe to use the unit for food storage in the short term, but the fault should be diagnosed and repaired promptly to prevent further component damage.
How much does it cost to repair error code 34 on a Fisher & Paykel refrigerator?
If the repair requires only a replacement solenoid valve, parts typically range from around $30 to $100 depending on the valve type, plus labor if a technician is used. If the display module needs replacement, parts alone can range from $100 to $300 or more, with total repair costs including labor generally falling between $150 and $450. Getting a diagnostic estimate from a technician before committing to parts is advisable.

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