Quick answer
Check the hot water supply valve and ensure it's fully open. Verify the water heater is working and set to the correct temperature. If both are fine, inspect the washer's water inlet valve for clogs or damage.
Confirm the symptom
- Washer fills only with cold water
- Water temperature is lukewarm or cold during wash cycle
- Other hot water fixtures in the house work normally
Tools and prep
- Screwdriver
- Adjustable wrench
- Flashlight
- Bucket or towels
- Turn off washer power at the circuit breaker
- Shut off both hot and cold water supply valves
Step-by-step troubleshooting
- Check Hot Water Supply ValveDo: Locate the hot water supply valve behind the washer and ensure it's fully open.Observe: Valve is open and not obstructed.Means: The valve was closed or partially closed.Next: If the valve is open, move to the next step.
- Test Water HeaterDo: Check the water heater's temperature setting and ensure it's functioning.Observe: Water heater is set to 120°F or higher and heating properly.Means: The water heater is not providing hot water.Next: Adjust the temperature or contact a professional for water heater issues.
- Inspect Inlet ValveDo: Visually inspect the washer's water inlet valve for signs of damage or blockage.Observe: Inlet valve shows signs of wear, corrosion, or blockage.Means: The inlet valve may need cleaning or replacement.Next: Clean the valve or replace it if damaged.
- Check Inlet HosesDo: Inspect the inlet hoses for kinks, cracks, or blockages.Observe: Hoses are damaged or clogged.Means: Damaged or clogged hoses are restricting hot water flow.Next: Replace or clear the affected hose.
- Test with Another ApplianceDo: Run hot water at another fixture (e.g., sink) to confirm the issue is isolated to the washer.Observe: Other fixtures provide hot water normally.Means: The issue is likely with the washer, not the home's hot water supply.Next: Proceed to test the washer's internal components.
- Test Inlet Valve with MultimeterDo: Use a multimeter to test the inlet valve's electrical connections for continuity.Observe: No continuity or inconsistent readings.Means: The inlet valve is faulty and needs replacement.Next: Replace the water inlet valve.
Common causes
| Cause | Likelihood | Difficulty | Part often needed |
|---|---|---|---|
| Closed Hot Water Supply Valve The valve restricts or blocks hot water flow to the washer. | Common | Easy | None |
| Low Water Heater Temperature The water heater is not set high enough to provide hot water. | Common | Easy | None |
| Clogged or Damaged Inlet Valve Debris or wear in the valve prevents proper hot water flow. | Common | Easy–Medium | Water Inlet Valve |
| Faulty Inlet Valve Solenoid The solenoid fails to open the valve for hot water. | Sometimes | Medium | Water Inlet Valve |
| Kinked or Clogged Inlet Hose Physical blockage or damage in the hose restricts water flow. | Sometimes | Easy | Inlet Hose |
| Faulty Washer Control Board The control board fails to signal the inlet valve to open for hot water. | Rare | Hard | Control Board |
Parts matching
If you need to replace parts, look for these common components:
- Water Inlet Valve (model-specific)
- Inlet Hoses (with correct thread size)
- Solenoid Assembly (if valve is repairable)
- Thermostat (for water heater testing)
Match your washer's model number when purchasing replacement parts for compatibility.
When to call a professional
- The water heater is not heating at all and requires professional servicing
- You suspect a faulty control board and lack the tools to test it
- You're unsure about electrical testing or valve replacement
- The issue persists after replacing all likely parts
FAQ
Why is my washer getting cold water even though the valve is open?
The hot water supply line might be kinked or clogged, or the water heater might not be functioning properly.
Can a bad inlet valve affect both hot and cold water?
Yes, a faulty inlet valve can affect both lines, but issues often occur on one side due to usage patterns or sediment buildup.
How do I know if the inlet valve needs replacement?
If the valve shows signs of corrosion, has no continuity when tested, or fails to open during operation, it likely needs replacement.
Is it normal for the inlet valve to make noise when operating?
A slight humming sound is normal, but loud clicking or grinding indicates a problem.