Maytag Refrigerator Error Codes: Complete List with Fixes

Maytag refrigerators are built on the Whirlpool Corporation platform and share the same diagnostic system, but Maytag models — particularly the French door MFI series, the side-by-side MSS series, and the top-freezer MRT series — have their own common failure patterns driven by Maytag-specific features like Dual Cool evaporators, PowerCold rapid chill, and FreshLock crisper systems. When your Maytag fridge displays an error code, this guide tells you exactly what it means, what caused it, and whether you can fix it yourself or need a technician.

How Maytag Refrigerator Error Codes Work

Maytag refrigerators display error codes on the temperature control panel — either the external dispenser display (French door models like MFI2570FEZ, MFT2776FEZ) or the internal control panel (top-freezer models like MRT118FFFH). Some codes appear as flashing LED patterns on models without digital displays.

To access the diagnostic mode on most Maytag refrigerators:

1. Press and hold the door alarm button for 3 seconds.
2. Within 5 seconds, press the refrigerator temperature DOWN button 3 times.
3. The display will enter diagnostic mode and cycle through stored error codes.
4. Press the temperature button to scroll through codes. Each code displays for 3 seconds.
5. To exit, press the door alarm button again or wait 5 minutes for automatic exit.

On Maytag French door models (2020+), you can also use the Maytag app connected via Wi-Fi to pull error history — the app shows timestamps for when each fault first occurred, which helps identify intermittent problems.

Basic reset procedure: Unplug the refrigerator (or flip the breaker) for 5 minutes, then restore power. If the error was caused by a transient condition (power surge, temporary sensor glitch), this clears it. If the error returns within 24 hours, the underlying problem requires diagnosis.

PO — Power Outage Detected

This is the most common code Maytag owners see. It indicates the refrigerator lost power and is alerting you to check food safety.

Common causes:

• Actual power outage (storm, grid issue, tripped breaker)
• Loose power cord connection at the wall outlet
• Dedicated circuit breaker tripped by another appliance sharing the circuit
• GFCI outlet tripped (Maytag refrigerators should not be on GFCI outlets)

How to fix:

1. Press any button on the control panel to acknowledge and clear the PO code.
2. Check refrigerator temperature — it should be 37F or below. Check freezer — should be 0F or below.
3. If temperatures are within range, food is safe. If the freezer rose above 40F, follow USDA food safety guidelines for partial thawing.
4. Maytag's PowerCold feature can help recover temperature faster — press the PowerCold button to activate a rapid cooling cycle.
5. If PO appears without an actual outage, check your outlet connection and ensure the refrigerator is on a dedicated 20A circuit (not shared with other appliances).

Part cost: No parts needed. If PO recurs without outages, an electrician should check the circuit ($100–$200).

CF — Communication Failure

The main control board (located behind the lower rear access panel) cannot communicate with the user interface board (behind the dispenser panel on French door models, or behind the internal temperature control on top-freezers).

Common causes:

• Failed wire harness between the door-mounted UI board and the main board — the harness runs through the upper door hinge and flexes with every door opening (the #1 cause on Maytag French door models)
• Corroded connector pins from moisture exposure
• Failed main control board (part W11305308 or model-specific equivalent)
• Failed user interface board (part W11305310)
• Power surge damage to one or both boards

How to fix:

1. Unplug the refrigerator for 5 minutes, then restore power. If CF was caused by a transient communication glitch, it will clear.
2. If CF returns, open the refrigerator doors and locate the upper hinge area where the wire harness passes from the door to the cabinet. On MFI and MFT series, gently flex the harness while the fridge is running — if the display flickers, you have found a broken wire.
3. Inspect harness connector pins at both ends for green corrosion. Clean with electrical contact cleaner and reseat firmly.
4. If the harness is damaged, replacement part WPW10838614 (door hinge wire harness) costs $25–$60 and is a moderate DIY job.
5. If the harness is intact, one of the two boards has failed. Professional diagnosis is recommended to determine which.

Part cost: Wire harness $25–$60. Main control board $180–$300. UI board $100–$200. Professional repair $250–$500 depending on which component.

5Y EF — Evaporator Fan Circuit Failure

The control board detected that the evaporator fan motor is not running or drawing abnormal current. On Maytag Dual Cool models (MFI2570FEZ, MFT2776FEZ), there are two evaporator fans — one for the freezer and one for the fresh food compartment. This code may specify which fan via the display pattern.

Common causes:

• Ice buildup around the evaporator fan blade (most common — especially in humid Sacramento summers)
• Failed evaporator fan motor (part WPW10189703)
• Wiring harness damage from ice expansion in the freezer compartment
• Defrost system failure causing excessive frost that blocks the fan

How to fix:

1. Open the freezer and listen for the evaporator fan. It should run whenever the compressor is running and the door is closed. Press the door switch to simulate a closed door — you should hear the fan spin up.
2. If you hear no fan or hear it struggling/clicking, remove the rear panel inside the freezer (4–6 screws). Check for ice buildup around the fan blade. If ice is present, the defrost system is failing (see defrost-related codes below).
3. Manually defrost: unplug the refrigerator for 24 hours with doors open, towels on the floor. This clears all ice. If the fan works after defrosting, the defrost system is the root cause.
4. If no ice is present and the fan still does not run, test the fan motor windings with a multimeter — should read 200–400 ohms. If open or shorted, replace the fan motor.
5. On Maytag Dual Cool models, ensure you are checking the correct fan — the fresh food compartment fan is behind the rear panel of the fridge section, not just the freezer.

Part cost: Evaporator fan motor (WPW10189703) $30–$80. Professional repair $150–$300.

Sd / 5d — Defrost Issue

The control board detected that the automatic defrost cycle failed to raise the evaporator temperature above 45F within the allotted defrost time (typically 20–30 minutes). This code often appears alongside frost buildup visible inside the freezer.

Common causes:

• Failed defrost heater (part WPW10278113) — the most common cause on Maytag bottom-freezer models
• Failed defrost thermostat / bi-metal (part WP2321799) — fails open, preventing the heater from receiving power
• Failed adaptive defrost control board (on models with ADC — controls defrost timing)
• Frost-sealed evaporator coils blocking airflow even when compressor runs

How to fix:

1. If you see heavy frost on the inside rear wall of the freezer or if the refrigerator section is warm while the freezer is cold, the defrost system is almost certainly the cause.
2. Unplug and remove the rear freezer panel to access the evaporator coils. If they are encased in ice, you have confirmed the defrost failure.
3. Test the defrost heater for continuity — it should read 20–30 ohms. If open (infinite resistance), replace it.
4. Test the defrost thermostat (bi-metal) — at room temperature it should be closed (0 ohms continuity). If open at room temp, replace it.
5. If both heater and thermostat test good, the defrost control timer or ADC board is likely failed. On Maytag models with the adaptive defrost control (most 2018+ models), the ADC is part of the main control board.

Part cost: Defrost heater $30–$50. Bi-metal thermostat $10–$20. Professional repair $200–$350.

SY CE — Compressor Circuit Error

The main control board detected an abnormal condition in the compressor motor circuit. This is a serious code that often requires professional repair.

Common causes:

• Failed compressor start relay (part WPW10613606) — the most common and least expensive cause
• Failed compressor overload protector
• Compressor motor windings failed (shorted or open)
• Main control board inverter circuit failure (on variable-speed compressor models)
• Loose or corroded wiring at the compressor terminal connections

How to fix:

1. Unplug the refrigerator and access the compressor compartment (lower rear behind the access panel).
2. Locate the start relay — a small device plugged into the side of the compressor. Remove it and shake gently. If you hear rattling, the internal element is broken and the relay must be replaced.
3. Test the overload protector with a multimeter — should read near 0 ohms at room temperature.
4. Test the compressor windings: measure resistance between the three compressor terminal pins. Start-to-run: 3–6 ohms. Start-to-common: 2–4 ohms. Run-to-common: 3–7 ohms. Any reading of 0 or infinite indicates a failed compressor.
5. On Maytag models with variable-speed (inverter) compressors (2020+ French door models), the inverter board is integrated into the main control board. Inverter failures require board replacement.

Part cost: Start relay $15–$40. Overload protector $10–$25. Compressor replacement $400–$800 (parts + labor). Main control board $180–$300.

SY EF — Evaporator Fan System Error

Similar to 5Y EF but indicates a system-level failure where the main control board detects a complete loss of communication with the evaporator fan circuit, not just abnormal current.

Common causes:

• Wire harness between the main board and the evaporator fan disconnected or damaged by freezer ice
• Failed fan motor circuit on the main control board
• Short circuit in the fan motor winding causing board-level protection to trigger

How to fix:

1. Follow the same diagnostic steps as 5Y EF above, but focus on wiring integrity between the main control board and the fan motor.
2. Inspect the wire harness routing — on Maytag French door models, the fan harness runs along the left wall of the freezer compartment and can be pinched by ice buildup or by food pressed against the wall.
3. Check all connectors at both the main control board and the fan motor for secure connection and corrosion.
4. If wiring is intact and the fan motor tests good, the main control board fan driver circuit may have failed. Board replacement is required.

Part cost: Wire harness $15–$40. Fan motor $30–$80. Main control board $180–$300.

HC — High Compressor Temperature

The compressor temperature sensor detects that the compressor shell temperature has exceeded safe limits. The control board shuts down the compressor to prevent damage.

Common causes:

• Condenser coils clogged with dust, pet hair, or debris — the #1 cause, especially in homes with pets
• Condenser fan motor failed (rear-mounted, pulls air across the condenser coils)
• Insufficient clearance around the refrigerator (needs 1 inch on sides, 1 inch on top minimum)
• Ambient room temperature above 110F (garage installations in Sacramento summer heat)
• Refrigerant undercharge from a slow leak

How to fix:

1. Unplug the refrigerator and pull it away from the wall. Locate the condenser coils — on most Maytag models they are at the bottom rear, behind the access panel.
2. Vacuum the condenser coils thoroughly with a brush attachment. For heavy buildup, use a condenser coil cleaning brush (available at hardware stores for $10).
3. Check the condenser fan motor — it should spin freely by hand. If seized or noisy, replace it (part WPW10124096, $25–$50).
4. Ensure at least 1 inch of clearance on each side and above the refrigerator for proper heat dissipation.
5. If coils are clean, fan works, clearance is adequate, and HC persists — suspect a refrigerant leak. This requires a certified HVAC/refrigeration technician with recovery equipment.

Part cost: Condenser fan motor $25–$50. Professional coil cleaning $100–$150. Refrigerant recharge $200–$400.

dg — Defrost Sensor Open/Short

The defrost temperature sensor (thermistor) mounted on or near the evaporator coils is reading an abnormal value — either shorted (very low resistance) or open circuit.

Common causes:

• Defrost sensor wire harness damaged by ice formation around the evaporator
• Defrost sensor itself failed (part WPW10225581)
• Connector pin corrosion from moisture in the freezer environment
• Sensor shifted position and is no longer in contact with the evaporator tubes

How to fix:

1. Unplug the refrigerator and remove the rear freezer panel to access the evaporator and defrost sensor.
2. Locate the defrost sensor — a small thermistor clipped to the evaporator tubing, usually near the top of the evaporator.
3. Disconnect and test the sensor: at room temperature, it should read approximately 16,000–17,000 ohms. At freezer temperature (0F), approximately 80,000–90,000 ohms.
4. If the reading is 0 ohms (shorted) or infinite (open), replace the sensor.
5. Inspect the sensor wire for ice damage. On Maytag models, re-route the wire away from areas where ice tends to accumulate.

Part cost: Defrost sensor $10–$25. Professional repair $150–$250.

DIM — Dimmer / Display Failure

The display dimmer circuit or LED backlight driver has failed. The display may be partially visible, completely dark, or flickering.

Common causes:

• LED backlight failure on the dispenser display module
• UI board LED driver circuit failure
• Loose ribbon cable between the display and the UI board
• Water intrusion into the dispenser display housing from ice/water spills

How to fix:

1. Check the display brightness setting — on some Maytag models, pressing and holding the Light button adjusts display brightness. Ensure it is not set to the lowest level.
2. Open the dispenser panel and inspect the ribbon cable connecting the display to the UI board. Reseat the connector.
3. Check for moisture or water stains inside the display housing. Dry thoroughly and apply dielectric grease to the connector to prevent future corrosion.
4. If the display remains dark, the UI board or display assembly needs replacement.

Part cost: UI board with display $100–$200. Professional repair $200–$350.

Additional Quick Reference Codes

• PF — Power failure (same as PO on some models). Press any button to clear.
• SY CF — Condenser fan circuit error. Check condenser fan motor and wiring.
• HRS — Hours display during diagnostic mode — not an error. Shows compressor run time.
• Door Ajar alarm — Not a code, but repeated beeping. Check that all doors and drawers are fully closed. Inspect door gaskets for gaps.
• Temperature alarm — Beeping with high temp display. Indicates internal temperature rose above 55F (fridge) or 26F (freezer). Usually caused by door left open or initial startup.

Maytag 10-Year Limited Parts Warranty

Maytag offers a 10-Year Limited Parts Warranty on the compressor, evaporator, and condenser on select models (registered within 30 days of purchase). This covers parts only — labor is not included after the first year. Keep your receipt and registration confirmation. This warranty is transferable if you sell the home but requires proof of original purchase date.

Frequently Asked Questions

Q: How do I reset my Maytag refrigerator after a power outage? A: Press any button on the control panel to clear the PO code. Check that both the refrigerator (37F) and freezer (0F) temperatures are set correctly. If the compressor does not restart within 10 minutes, unplug for 5 minutes and restore power. Allow 24 hours for temperatures to fully stabilize — do not adjust settings during this period as the system needs time to reach equilibrium.

Q: Why does my Maytag French door refrigerator show CF intermittently? A: Intermittent CF on French door models is almost always caused by a failing wire harness at the upper door hinge. The harness flexes every time you open the door — after 50,000+ openings (roughly 5–7 years of normal use), internal wires fatigue and break. The fix is replacing the door hinge wire harness (WPW10838614, $25–$60) — a moderate DIY repair that takes about 30 minutes.

Q: My Maytag refrigerator is running but not cold enough with no error code. What should I check? A: Start with the condenser coils — dirty coils are the most common cause of insufficient cooling with no error code. Pull the fridge from the wall, remove the lower rear panel, and vacuum the coils. Second, check the evaporator fan — open the freezer and listen for the fan when the compressor runs. Third, check the door gaskets — close the door on a dollar bill and pull. If the bill slides out easily, the gasket is worn.

Q: Does Maytag use the same error codes as Whirlpool? A: Yes — Maytag refrigerators share the same Whirlpool Corporation platform and error code system. However, Maytag-specific features like PowerCold and Dual Cool evaporators can produce additional diagnostic messages. The diagnostic mode entry procedure may also differ slightly between brands.

Q: How much does Maytag refrigerator compressor replacement cost? A: Compressor replacement typically costs $400–$800 for parts and labor. Before replacing the compressor, always check the start relay first — a $15–$40 part that causes the same symptoms (clicking, not cooling, SY CE code). If your Maytag is under 10 years old and registered, the compressor may be covered under the 10-Year Limited Parts Warranty — you would only pay labor ($150–$250).

When to Call a Professional

• SY CE with failed compressor windings — Compressor replacement requires brazing equipment and EPA Section 608 refrigerant certification. Never attempt DIY compressor replacement.
• Refrigerant leak (HC code with clean coils) — Leak detection and recharge requires professional equipment. Federal law requires EPA certification for refrigerant handling.
• Main control board failures (CF, SY EF persistent) — Board-level diagnosis requires the specific model schematic and test procedures.
• Multiple simultaneous error codes — When two or more codes appear together, the root cause is often not what either code individually suggests. Professional diagnosis prevents replacing the wrong part.

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