mypros+
Error code reference

Maytag Dryer Error Code F:31

Low voltage condition (less than 30V) detected (appears ONLY in Diagnostic Test Mode).

Maytag codesMaytag dryer codes

Low voltage condition (less than 30V) detected (appears ONLY in Diagnostic Test Mode).

First step from the service manual

Check to see if a household fuse has blown or a circuit breaker has tripped. Confirm the power cord is properly installed and plugged into the power outlet. Check the relay connections on the electronic control.

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

MyPros+ Max

Get the full diagnostic procedure for F:31.

  • Step-by-step tests with expected resistance, voltage, and continuity values
  • Wiring diagram references and connector pinouts from the OEM service manual
  • Verified part numbers when replacement is required
Get the full procedure

$29/month · Cancel anytime · Or $9.95 3-day pass

What F:31 means on a Maytag dryer

The F:31 error code on a Maytag dryer indicates that the electronic control has detected a low voltage condition, specifically a supply voltage reading below 30 volts. This code is exclusive to Diagnostic Test Mode, meaning it will not appear during normal dryer operation. The control board continuously monitors incoming power supply levels during diagnostics, and when the voltage falls below the minimum threshold required for safe and reliable operation, F:31 is triggered to alert the technician to an upstream power delivery problem.

The most common origin of this fault is a problem at the household electrical supply level. Electric dryers in North America require a 240-volt circuit, supplied by two legs of 120 volts each. If one leg of that circuit drops out due to a blown fuse or a tripped circuit breaker, the dryer may receive only half the intended voltage, well below the 30-volt threshold defined for this fault. A loose or improperly seated power cord connection at the outlet or at the terminal block on the dryer itself can produce the same result.

Beyond the power supply and cord, the relay connections on the electronic control board are also a defined diagnostic target. Relay contacts that are corroded, loose, or damaged can interrupt voltage delivery to the control circuit, producing a false low-voltage reading even when household power is adequate. Inspecting the relay connections on the control board for secure seating, corrosion, or heat damage is a required step before condemning the board itself.

Source: manufacturer service documentation.

Common causes of F:31

  1. 01

    Blown household fuse or tripped circuit breaker

    Wiring / connection

    Electric dryers require a dedicated 240-volt double-pole circuit. If one or both breakers in that circuit have tripped, or a cartridge fuse has blown, the dryer will receive insufficient voltage. Check the breaker panel or fuse box and reset or replace as needed.

  2. 02

    Improperly installed or loose power cord

    Wiring / connection

    If the power cord is not fully seated in the wall outlet or if the terminal connections at the dryer's terminal block are loose, voltage delivery will be reduced or intermittent. Inspect the cord for secure plugging at both the outlet end and the dryer end.

  3. 03

    Loose or corroded relay connections on the control board

    Wiring / connection

    The relay connections on the electronic control board can develop loose seating or corrosion over time, disrupting the voltage signal the board monitors. Visually inspect each relay and connector on the board for signs of corrosion, heat damage, or poor contact.

  4. 04

    Faulty wall outlet or wiring

    Part replacement

    A worn or damaged 240-volt outlet can fail to deliver full voltage to the dryer even when the breaker appears intact. Testing the outlet with a multimeter will confirm whether the correct voltage is present at both supply legs.

  5. 05

    Failing electronic control board

    Part replacement

    If incoming power and all connections have been confirmed good but F:31 persists during diagnostic testing, the control board itself may be misreading voltage due to internal component failure. This is the least likely cause and should only be considered after all other checks are complete.

See the test procedure for each cause

Frequently asked questions about F:31

What does F:31 mean on a Maytag dryer?
F:31 indicates that the electronic control detected a low voltage condition, specifically below 30 volts, during Diagnostic Test Mode. It points to a problem with the incoming electrical supply or the connections delivering power to the control board. This code only appears when a technician runs the dryer's built-in diagnostic test, not during regular operation. The first areas to check are the household circuit breakers, the power cord, and the relay connections on the control board.
Will resetting the dryer clear the F:31 code?
Simply resetting or unplugging the dryer will not permanently resolve F:31 if the underlying power issue remains. Because this code only appears in Diagnostic Test Mode, it will return each time diagnostics are run until the root cause is corrected. Addressing the actual voltage problem, such as resetting a tripped breaker or securing a loose power cord connection, is what clears the condition.
Is it safe to use my Maytag dryer when F:31 appears?
F:31 only surfaces during Diagnostic Test Mode, so your dryer may still operate for normal cycles if the voltage issue is intermittent or minor. However, running an appliance on an inadequate or unstable power supply can cause damage to the electronic control board and other components over time. It is advisable to diagnose and correct the power supply problem before continuing regular use.
How do I fix F:31 on a Maytag dryer?
Start by checking your home's breaker panel to confirm the dryer's double-pole circuit breaker has not tripped and reset it if needed. Next, verify the power cord is fully plugged into the outlet and that the terminal connections at the dryer are tight and secure. If household power checks out, inspect the relay connections on the electronic control board for looseness or corrosion. If all connections are sound and the fault persists, the wall outlet wiring or the control board may require further evaluation.
How much does it cost to repair a Maytag dryer showing F:31?
If the fix is simply resetting a tripped breaker or reseating a loose power cord, there is no parts cost involved. Replacing a wall outlet or having an electrician service the circuit can range from around 100 dollars to 250 dollars or more depending on local labor rates. If the electronic control board needs replacement, parts and labor combined typically range from 200 dollars to 400 dollars or higher depending on the specific model and service provider.

Related Maytag dryer codes

All Maytag dryer codes
View all 251 Maytag dryer codes

78,000+ service manuals · 160,000+ error codes · 55+ brands

Get Started

$29/month · Cancel anytime · Or $9.95 3-day pass