Most Likely Cause#
A Whirlpool washer that gets no hot or no cold water is nearly always failing at the water inlet valve — the dual-solenoid valve that switches between the hot and cold supply lines. If one temperature is missing, the most common cause is that valve's solenoid for that side failing, so it never opens. Close behind are a supply valve turned off at the wall, a clogged inlet screen on one side only, and a hot-water source that is not actually delivering hot water. A temperature thermistor reading wrong and reversed hoses are the less common causes.
The quickest split: is it hot that is missing or cold? Because the inlet valve has a separate solenoid and a separate supply hose for each, a single missing temperature usually isolates the fault to that one side — its solenoid, its hose, or its screen.
How Whirlpool Picks Temperature#
Your temperature selection tells the control board which inlet-valve solenoid to open: hot only, cold only, or both for warm. Each solenoid feeds from its own hose and its own inlet screen. That design is why a "no hot water" or "no cold water" complaint is so diagnostic — the healthy side proves the valve and board basics work, and the fault sits on the dead side's solenoid, hose, or screen.
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Bearing puller set ($120), drum spider wrench ($85), multimeter ($85), and diagnostic software. Our technician arrives with $3,000+ in professional tools — your diagnostic is free.
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What Usually Causes It#
The table ranks the causes from most to least common on Whirlpool washers.
| Cause | Why one temperature is missing | How common | First fix |
|---|---|---|---|
| Inlet valve solenoid failure | The solenoid for that side won't open | Most common | Test the solenoid for that temperature; replace the valve |
| Supply valve closed | The wall tap for that line is off or partly closed | Common | Fully open both hot and cold wall taps |
| Clogged inlet screen (one side) | Sediment blocks the screen on that hose | Occasional | Clean the inlet screen for the dead side |
| Hot-water source issue | The house is not delivering hot water | Occasional | Run a hot tap nearby; check the water heater |
| Thermistor fault | The washer misreads the water temperature | Uncommon | Test the temperature sensor |
| Reversed hose connections | Hot and cold hoses are swapped | Rare | Confirm the hoses match their ports |
Inlet Valve and Wall Taps#
Start at the wall: both the hot and cold supply taps must be fully open, and a half-closed tap is a common free fix for a missing temperature. If both taps are open and one temperature is still absent, the inlet valve solenoid for that side is the prime suspect. The valve is really two solenoids in one body; testing the coil for the dead side for continuity, and confirming it clicks and passes water when energized, isolates the failure. A dead solenoid means the valve is replaced.
Screens, Heater, and Hoses#
Each inlet hose has a fine screen that catches grit, and a screen clogged on just one side chokes that temperature to nothing while the other flows fine — a cheap clean often restores it. If the cold side works but hot is weak everywhere in the house, the problem is the water heater, not the washer. And on a newly-installed or recently-moved machine, check that the hot and cold hoses are not swapped at the ports, which makes the temperatures come out backwards.
Quick Diagnostic Sequence#
- Determine whether hot or cold is the missing temperature.
- Confirm both wall supply taps are fully open.
- Clean the inlet screen on the dead side's hose.
- Test the inlet valve solenoid for the missing temperature.
- Verify the hoses are on the correct ports and the water heater delivers hot water.
Safety: unplug the washer and shut both supply taps before removing a hose or the inlet valve. The valve carries line voltage to its solenoids and water at its ports, so isolate both first.
Safety First — Know the Risks
High-voltage components and pressurized water lines create flood and shock risk. A single loose fitting can cause thousands in water damage. Our techs are licensed and insured — let them handle the risk.
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Repair or Replace#
An opened wall tap or a cleaned inlet screen costs nothing, and the inlet valve itself is an inexpensive, common part, so this repair is almost always worthwhile. A temperature thermistor is likewise cheap. There is rarely an expensive verdict here unless the control board is involved, which is uncommon for a single missing temperature. If the simple checks do not restore both temperatures, you can book a diagnostic visit to have the valve and sensor tested.
Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
