No initial fill on the WDT730HAMZ calls for supply, door and drain-loop checks; it does not prove a failed inlet valve. Confirm the visible symptom before resetting; filters, loading, detergent, water supply and door alignment are safe checks, internal wiring is not. A closed shutoff, kinked hose, unlatched door or drain loop below the specified height can prevent or siphon the fill. Use this page when no water enters at the start; standing water after the cycle belongs to the existing drain guide. Open the shutoff fully, straighten only the accessible inlet hose, latch the door and verify the drain loop is at least 20 in or 50.8 cm above the floor without loosening plumbing. Press Start/Resume and test once. If no fill begins or a leak appears, close the valve and arrange service.
Models covered
Safety first
- Cancel, switch off, close the water valve and let hot dishes cool. Wear gloves near the filter; never tilt a built-in appliance or remove its base or side panels.
What the symptom may indicate
Checks in the right order
- Confirm before acting
A closed shutoff, kinked hose, unlatched door or drain loop below the specified height can prevent or siphon the fill.
- Make the appliance safe
Cancel, switch off, close the water valve and let hot dishes cool. Wear gloves near the filter; never tilt a built-in appliance or remove its base or side panels.
- Apply the official check
Open the shutoff fully, straighten only the accessible inlet hose, latch the door and verify the drain loop is at least 20 in or 50.8 cm above the floor without loosening plumbing.
- Retest once and decide
Press Start/Resume and test once. If no fill begins or a leak appears, close the valve and arrange service.
Stop and get qualified help when
- Stop for water in the base, an uncontrolled leak, heat or motor code, burning smell, damaged cable or a fault that returns after one empty test.
Next step
Repair, replace a part, or arrange a diagnosis?
Use the checks and stop conditions above to choose a cautious next step. A symptom alone never proves that the appliance has failed.
Resolve it without buying anything
Complete the 4 user-accessible checks in order. If normal operation returns and no warning sign remains, no replacement is indicated.
Replace only the confirmed part
If the checks isolate a worn or blocked component, match its complete reference to the exact appliance model before ordering.
This guide does not identify a replacement part. Do not order a generic component from the symptom alone.
Arrange a diagnosis before replacing the appliance
Stop at any warning sign listed above. A qualified diagnosis should confirm that repair is unsafe, unavailable or uneconomical before an appliance replacement is considered.
Sources used
- Whirlpool — Whirlpool's official support material documents this exact symptom path for WDT730HAMZ; the procedure here keeps only user-accessible checks.
Last checked: 30 August 2026