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Error code reference

Maytag Range Error Code 1c5c

Vcc or ground failure

Maytag codesMaytag range codes

Vcc or ground failure – Vcc/ground at testpoint out of specification during cook active, detected after 1 minute.

First step from the service manual

Disables all outputs; check control board power supply voltages.

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

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What 1c5c means on a Maytag range

Error code 1c5c on a Maytag range indicates a Vcc or ground failure detected at a testpoint on the control board. Vcc refers to the supply voltage that powers the control board's logic circuitry. When this voltage, or the ground reference it relies on, falls outside the acceptable specification range during an active cooking cycle and the condition persists for more than one minute, the control board triggers this fault. The board responds by disabling all outputs, which means the heating elements, ignition circuits, and any other controlled components are shut down as a safety measure.

The root cause is almost always found in the control board's internal power supply section or in the wiring that delivers AC line voltage to the board. A failing power supply regulator on the control board can cause the Vcc rail to drop or fluctuate beyond tolerance. Loose, corroded, or damaged wiring connections at the board's power input terminals can also introduce resistance into the circuit, pulling the supply voltage out of specification under load. In some cases, a short circuit somewhere in the output wiring can drag the Vcc rail down enough to trigger the fault.

Diagnosis should begin by measuring the power supply voltages at the control board testpoint while the unit is in a cooking mode. Comparing the measured Vcc value against the specified operating range will confirm whether the board's internal regulator is at fault or whether the issue is upstream in the wiring harness or house electrical supply. If the incoming AC voltage to the board is within specification but the Vcc testpoint reads incorrectly, control board replacement is the likely resolution.

Source: manufacturer service documentation.

Common causes of 1c5c

  1. 01

    Failing control board power supply

    Part replacement

    The internal voltage regulator on the control board can degrade over time, causing the Vcc supply rail to fall outside specification under load. If incoming AC voltage checks out correctly but the testpoint voltage is wrong, the control board itself is the most likely culprit.

  2. 02

    Loose or corroded wiring connections at the control board

    Wiring / connection

    Loose terminals or corroded pins at the control board power input connectors add resistance to the circuit, which can drag the supply voltage out of specification during cooking. Inspect all connectors to the board for secure seating, corrosion, or heat damage.

  3. 03

    Short circuit in output wiring

    Wiring / connection

    A short circuit in the wiring connected to one of the board's output circuits can pull the Vcc rail low enough to trigger the fault. Check harness wiring to heating elements and other controlled components for pinched or damaged insulation.

  4. 04

    Low or unstable house electrical supply voltage

    Wiring / connection

    An under-voltage condition at the wall supply can prevent the control board from maintaining a stable Vcc level. Measure the line voltage at the range's terminal block or outlet under load to rule out a utility or household wiring issue.

  5. 05

    Damaged control board ground path

    Wiring / connection

    A broken or high-resistance ground connection to the control board can cause the ground reference to shift, making the Vcc testpoint appear out of specification even if the supply voltage is correct. Inspect the ground wires and chassis ground points for continuity and secure attachment.

See the test procedure for each cause

Frequently asked questions about 1c5c

What does 1c5c mean on a Maytag range?
The 1c5c code means the control board detected that its Vcc supply voltage or ground reference was outside the acceptable specification during an active cooking cycle for more than one minute. Vcc is the low-voltage DC supply that powers the board's logic circuits. When this fault is triggered, the board disables all outputs, shutting down heating elements and other functions as a safety precaution. The problem is typically traced to the control board's power supply section or the wiring that feeds it.
Can I fix error code 1c5c on my Maytag range myself?
Some basic checks, such as inspecting wiring connectors for looseness or corrosion, are within reach for a knowledgeable DIYer comfortable working with appliances that are fully unplugged. However, diagnosing the Vcc testpoint voltage requires a multimeter and familiarity with control board circuitry, which is better suited to an experienced technician. If the control board's internal power supply is the cause, replacing the board is the required fix. Working inside a range involves high-voltage components, so take appropriate safety precautions.
Is it safe to use my Maytag range when it shows the 1c5c error?
When the 1c5c fault is active, the control board disables all outputs, so the range will not operate normally anyway. You should not attempt to force the appliance to run while this fault is present. The underlying power supply issue could worsen over time or indicate a wiring problem that poses additional risk. Have the range inspected and repaired before returning it to regular use.
Will resetting my Maytag range clear the 1c5c error code?
Disconnecting the range from power for a few minutes may temporarily clear the fault code and restore operation if the Vcc supply voltage was only briefly out of specification. However, if the underlying cause, such as a failing control board or a wiring fault, is still present, the code will return once the unit is back in a cooking cycle for more than one minute. A reset is a useful first step to confirm whether the problem is intermittent, but it is not a repair.
How much does it cost to repair a Maytag range showing error code 1c5c?
Repair costs vary depending on the root cause. If the fix involves simply reseating a wiring connector, a service call fee may be the primary expense, typically ranging from $75 to $150. If the control board needs replacement, parts and labor combined can range from $200 to $450 or more depending on the specific board and local labor rates. Getting a diagnostic estimate before authorizing repairs is advisable.

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