Whirlpool WDT9705AHV Dishwasher Won't Start – What Part Fixes This Problem?
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Understanding the Problem
If your Whirlpool WDT9705AHV dishwasher doesn't start when you press the cycle button, the issue can come from a handful of places: the door latch (or door switch), the user interface/touchpad, the main control board, or a power/safety device such as a thermal fuse. Electrical or wiring problems and failed relays are other common culprits. Symptoms can be intermittent — sometimes it will start, sometimes it won't — which often points to a failing electrical component or a loose connection. Begin troubleshooting at the door and the control panel. The dishwasher will not begin a cycle if the door latch doesn't register closed, or if the control board isn't receiving the start command due to a failed touchpad or damaged ribbon cable. If the dishwasher is totally dead (no lights, no sound) the problem is usually power-related: check the household circuit breaker, the outlet (if accessible), and internal fuses or thermal cutouts before replacing expensive components.
Common Symptoms
Dishwasher does nothing when Start is pressed, no display/LEDs, intermittent starts, control panel unresponsive, or dishwasher starts but immediately stops.
Common Causes
- Faulty or misaligned door latch/door switch preventing the unit from seeing a closed door
- Failed user interface (touchpad) or damaged ribbon cable between touchpad and main control board
- Main control board failure, blown thermal fuse, or loss of incoming power
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
Quick check: press the door firmly and listen for a distinct click from the latch as you try to start a cycle. If you hear the click but nothing happens, the latch is likely OK and the problem is probably the touchpad, ribbon cable, or control board. If there's no click, inspect/replace the door latch assembly.
Frequently Asked Questions
Can I test the door latch or door switch myself?
Yes. Unplug the dishwasher or disconnect power first. Open the inner door panel to access the latch and use a multimeter to check the switch for continuity when you engage the latch. If there's no continuity when the latch is closed, replace the latch/switch assembly. If the switch tests OK but the unit still won't start, investigate the touchpad, ribbon cable and control board next.
Is it expensive to fix a WDT9705AHV that won't start?
Cost depends on the failed part. A door latch or ribbon cable is relatively inexpensive and a reasonable DIY repair. A replacement main control board is the most costly common repair. Always confirm the fault with basic tests (voltage, continuity, visible damage) before ordering parts; if you're unsure, a diagnostic visit by a technician will avoid unnecessary parts purchases.
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