Whirlpool WRF555SDFZ Refrigerator — Common Problems and What Parts Fix Them
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Understanding the Problem
This guide covers the most common problems owners experience with the Whirlpool WRF555SDFZ (French-door refrigerator): not cooling, excessive frost/defrost failures, water dispenser or ice maker not working, leaks and unusual noises. Below are focused diagnostic steps and practical repairs you can perform with basic tools. 1) FRIDGE/ FREEZER NOT COOLING (or cooling poorly): a. Quick checks: confirm power (lights on, display active), temperature settings (refrigerator 37°F / 3°C, freezer 0°F / -18°C), and that the door seals close fully. If a control panel shows an error code note it. b. Clean condenser coils: unplug, remove grille, vacuum/brush coils and the condenser fan area — dirty coils reduce cooling dramatically. c. Listen & observe: compressor should hum/ vibrate. If compressor is off or clicking on/off repeatedly, suspect the start relay/overload. If compressor runs but temperature remains warm, check fans and airflow. d. Check condenser fan motor (behind fridge near compressor): with unit plugged in (be careful), the fan should run when compressor runs. If the fan is dead, replace the condenser fan motor. e. Check evaporator fan (inside freezer): open freezer door and press the door switch — the evaporator fan should run. If not, test for power and motor continuity and replace fan if failed. f. Check for frosting on evaporator: if evaporator is iced over the defrost system may have failed (defrost heater, defrost thermostat/thermistor, or defrost control). Remove back freezer panel and inspect for heavy frost. Test defrost heater continuity and defrost thermostat; if open/failed replace the failed part and verify defrost timer/control. g. Test temperature sensors/thermistors: locate thermistors (often on evaporator or in fresh food compartment) and measure resistance with a multimeter at room temperature; compare to expected values in tech sheet (resistance should change with temperature). Replace if out of spec. h. Test start device/relay: unplug, access compressor relay and test for signs of burning or failure. Replace relay and overload if suspect. i. If compressor runs, fans run, defrost OK and thermistors OK but fridge still warm, the sealed system (compressor/evaporator) may be failing — this typically requires a sealed system tech. Repair basics: replace faulty fan motors, relays or defrost components; clean coils; replace thermistors or control boards as indicated by tests. 2) FREEZER FROZEN SOLID OR ICE BUILD-UP IN FREEZER: a. Inspect evaporator: heavy ice indicates failed defrost. Remove freezer back panel and look for continuous ice on evaporator coil. b. Test defrost heater and thermostat with a multimeter for continuity; inspect the defrost control or main board which times defrost cycles. c. Manually defrost (if immediate fix needed): unplug and allow full thaw, remove water, then repair/replace failed defrost parts before returning to normal operation. Repair basics: replace the defrost heater, defrost thermostat/thermistor or the control board that initiates defrost cycles. 3) WATER DISPENSER NO WATER / POOR FLOW: a. Check water filter: a clogged filter reduces flow — replace with EveryDrop compatible filter and test. Temporarily remove the filter and test (some models require a bypass cap). b. Verify water supply to the refrigerator: ensure house shut-off valve is open and the supply line is not kinked. c. Test the water inlet valve (located at back, near compressor): when dispenser is pressed, the solenoid should receive voltage and open; test for continuity across the solenoid and for 120VAC when dispensing (use caution). Replace the water inlet valve if it has no continuity or does not open. d. Check dispenser actuator/switch: if the switch does not signal the valve, the switch or user interface might be faulty. Repair basics: replace the filter, water inlet valve, or dispenser switch as indicated. 4) ICE MAKER NOT MAKING ICE: a. Confirm ice maker is turned ON and the power connector (if present) is secure. b. Check water supply and filter: low/no water flow also prevents filling. Bypass filter to test. c. Run an ice maker diagnostic/test cycle (refer to tech sheet or user manual for procedure) and listen for the fill valve to open. If valve does not open but has power, ice maker assembly may be bad. d. Inspect fill tube for ice blockage — use warm water (carefully) or a hairdryer briefly (on low, cautious) to clear ice. e. Test the ice maker module for harvest motor continuity and the thermistor/thermostat in the ice maker. Repair basics: replace the water valve, ice maker assembly/module or thermostat as needed. 5) LEAKS / WATER ON FLOOR: a. Check the water filter housing and connections for loose fittings or O-rings. b. Inspect the drain pan and drain tube for cracks or overflow. c. If water pools inside refrigerator, the defrost drain may be clogged; locate drain at rear of freezer/ice maker area and clear with warm water and a small funnel or compressed air. Repair basics: replace damaged hoses or O-rings, clear drain clogs, replace cracked drain pan. 6) UNUSUAL NOISES: a. Identify sound source: buzzing/humming (compressor/relay), rattling (coil or items touching), clicking (start relay), or loud fan noise. b. Inspect and replace noisy condenser or evaporator fans, secure panels and items that vibrate, and replace start relay if the compressor is trying to start and clicking. Repair basics: tighten or replace mounting parts, replace failing fans or relays. Safety note: Always unplug the refrigerator before accessing internal components, and use a multimeter rated for appliance work when measuring voltages. If you are not comfortable working with sealed-system components or line voltage, call a certified appliance technician.
Common Symptoms
Refrigerator not cooling or cooling inconsistently; freezer frosting over; water dispenser low/no flow; ice maker not producing; leaking water; loud or unusual noises.
Common Causes
- Dirty condenser coils reducing heat rejection
- Failed evaporator or condenser fan motor
- Defrost system failure (heater/thermostat/control) causing frost build-up
- Clogged water filter or failed water inlet valve
- Failed ice maker module or blocked fill tube
Popular Parts That Fix This Problem
These are the most common replacement parts that fix this problem. When you're ready to order, click below to find the right part at ProsourceParts.com — just search by your appliance model number for a guaranteed fit.
Helpful Repair Tip
Start by listening: if the compressor runs but the evaporator fan is silent or the evaporator is iced over, the defrost system or evaporator fan is the likely culprit. If the compressor is clicking repeatedly, check the start relay/overload next.
Frequently Asked Questions
How do I reset my WRF555SDFZ refrigerator?
Most resets are done by power-cycling: unplug the refrigerator (or turn off the circuit breaker) for 5 minutes and plug it back in. For control or dispenser lock/reset options, check the control panel — some models have a dedicated reset or lock button. If a control board reset is needed and power-cycling doesn't help, a faulty control board may require replacement.
How often should I change the water filter in my WRF555SDFZ?
Replace the water filter every 6 months or sooner if you notice reduced water flow, poor taste or odor. If you experience low dispenser flow or slow ice production, temporarily bypassing the filter can help diagnose if the filter is the cause.
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