8 components coveredField manual · Dishwasher
Whirlpool WDT750SAK / WDT970SAH dishwasher: quick sheet
Covers: Whirlpool 24 in top-control (hidden control) built-in dishwashers with stainless tub and third rack: WDT750SAK* (WDT750SAKZ fingerprint-resistant stainless, WDT750SAKB black; 47 dBA, 13 place settings), its predecessor WDT750SAH* (15 place settings per one retailer), and WDT970SAH* (WDT970SAHZ, WDT970SAHB, WDT970SAHW; 47 dBA, 15 place settings) with the later WDT970SAK. Several are listed as discontinued. Search terms: WDT750, WDT970, WDT750SAKZ, WDT970SAHZ.
Upper-tier Whirlpool tall-tub units on the Whirlpool electronic platform: stainless tub, third-level rack, Sensor cycle that reads soil and temperature, Sani Rinse, heated dry with a hidden element under the tub floor, and a manual-clean filter. They throw the standard F#E# codes and enter the same 1-2-3 diagnostic routine as other current Whirlpool-built dishwashers.
Safety first
- Turn off the breaker before removing panels; a hard-wired unit can be live at the junction box.
- Close the hot-water valve before working on the inlet valve.
- Let the element and water cool after a cycle.
- Wear cut-resistant gloves in the sump.
- Never bypass the float or leak switch.
How it works
Fill is timed through the inlet valve; the float switch is the overfill guard and a leak sensor in the base tray stops the cycle if water collects there.
One circulation motor feeds the lower, middle and upper spray paths; a diverter or the arm design alternates zones on some cycles.
Sensor cycle: a thermistor and an optical (turbidity) sensor adjust time and water temperature to the soil level.
Heat and dry: a recessed (hidden) element heats water on Sani/Hi Temp and heats air for Heated Dry; with heated dry off, drying relies on residual heat and rinse aid. Quick cycles may skip the extended dry.
Filtration: a removable filter in the tub floor must be cleaned by hand; there is no grinder.
Components & tests
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Always confirm values against the tech sheet for the exact model.
OnCall Tech is a reference tool for trained technicians and can make mistakes. Always disconnect power and confirm with the manufacturer's documentation before you work. © 2026 OnCall Tech. Original content; not a reproduction of any manufacturer document.Generic part photos (not of this brand): Large stainless refrigerator set flush between kitchen cabinets by Alex Qian, Pexels License
