Error code reference
Whirlpool Dishwasher Error Code 3-4
OWI failed calibration
OWI failed calibration. Drain hose check valve not sealing; dirty water backs into dishwasher after draining.
First step from the service manual
1
Disconnect drain hose at plumbing connection. Elevate hose above dishwasher and fill with water. If water flows into dishwasher, replace entire drain loop.
The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.
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3-4 on my Whirlpool WDT730PAHZ
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OWI failed calibration
From Tech Sheet W14869550, p.42:
1.Disconnect drain hose at plumbing connection. Elevate hose above dishwasher and fill with water. If water flows into dishwasher, replace entire drain loop.
2.Measure drain pump winding resistance at connector J7 on the main control. Expected: 12 to 16 ohms at room temperature.
3.Back-probe the pump driver output under load. Verify the board switches the pump at 120 VAC during the drain portion of the cycle.
Part W10876537
Drain pump assembly
Related Whirlpool dishwasher codes
All Whirlpool dishwasher codes →- 1-1Stuck key detected in keypad or keypad connection…
- 1-2Stuck key or short circuit(s) detected in keypad or keypad…
- 1-3Control detected stuck key(s) in keypad or keypad…
- 10-1Dispenser electrical problem; loose connection in Dispenser…
- 10-2Vent wax motor electrical problem
- 10-3Drying fan error (on models with fan)
- 12-1No communication between ECM and Appliance Control Unit…
- 12-2No link between ECM and wireless router
View all 137 Whirlpool dishwasher codes
- 12-3No link between ECM and Internet
- 12-4Antenna A problem
- 12-5Antenna B problem
- 12-6Current Transformer A problem
- 12-7Provisioning problem
- 2-1Control detected stuck key(s) in keypad or keypad connection
- 2-2Control detected stuck key(s) in keypad or keypad connection
- 3-1Thermistor/OWI temperature sensing circuit open
- 3-2Thermistor/OWI temperature sensing circuit shorted
- 3-3OWI calibration failure
- 4-1Wash motor no communication
- 4-2Wash motor stuck key detected
- 4-3Wash motor not running due to loose connection in Motor…
- 4-3 (cause 2)Control Motor Drive circuit or Sense circuit failure…
- 4-4Wash motor failure
- 4-5Control detected diverter disk in sump is missing (Disk…
- 5-1Door was not latched within 3 seconds of pressing…
- 5-2Door stuck closed
- 5-5Door switch(es)
- 6-1Low or no water
- 6-10Water tank valve stuck open mechanically or electrically…
- 6-2Inlet water
- 6-3Suds/air in pump
- 6-4Float switch open; overfill switch stuck in open position…
- 6-5Fill valve triac on control shorted, fill valve…
- 6-6Inlet water
- 6-7Flowmeter problem
- 6-8Water softener regeneration valve electrical problem
- 6-9Water tank valve not functioning; loose connection and/or…
- 7-0Flow meter disconnected or damaged.
- 7-1No heat
- 7-1 (flowmeter)Disconnected or damaged flowmeter.
- 7-2Heating element stuck in active mode
- 7-7Flowmeter problem
- 8-1Slow drain
- 8-2Drain motor electrical problem
- 8-3Loose connection in Door Switch Circuit and/or door switch…
- 8-3 (stuck on)Drain stuck on
- 8-4Drain motor electrical problem; loose connection in Drain…
- 8-5Drain motor electrical problem
- 9-1Diverter can't find position
- 9-2Diverter stuck on
- 9-3Diverter
- 9-4Lower spray arm error
- 9-5Leak detection
- E1Water inlet failure
- E3Heater failure
- E4Overflow
- E5NTC open circuit failure
- E6NTC short circuit failure
- E7NTC short circuit failure
- F0Soil detection sensor defective
- F0E1Load detected during the washer cleaning cycle
- F1NTC (Negative Temperature Co-efficient of Resistance)…
- F10E1Detergent dispenser electrical problem
- F10E2Vent linear motor electrical problem
- F10E3Drying fan error
- F10E4Diverter can't find positions (position optical sensor…
- F10E5Diverter leak (motor); corroded or loose connection in…
- F12E1Smart Grid
- F12E2Smart Grid
- F12E3Smart Grid
- F12E5Smart Grid
- F12E7Smart Grid
- F1E1CCU Error
- F1E2MCU Error
- F1E7Board thermistor open or shorted.
- F1E9WIDE File queue full.
- F2Water leak detected
- F2E0Keypad disconnected.
- F2E1Stuck key detected on user interface; a key appears stuck…
- F2E2User interface cannot communicate with main control; loose…
- F2E3Unsupported Cycle
- F3Heating system defective
- F3-E3OWI calibration failure; OWI failure or drain hose check…
- F3E0Main oven sensor open or shorted.
- F3E1Open or shorted connection or component in temperature…
- F3E2Short circuit in temperature sensing circuit
- F4Drain system defective
- F4E2Heater relay stuck open or heater element open; open…
- F4E3Wash motor not running due to loose connection in motor…
- F4E4Wash motor inoperative
- F5Spray arm blocked
- F5E0Door and switches do not agree (Clean mode
- F5E1Door Switch Error
- F5E2Door stuck closed
- F5E3Door Unlock Error
- F6Water tap closed
- F6-E4Float switch open
- F6E1UI does not get communication from main control; user…
- F6E10Water reservoir valve stuck
- F6E2Fill valve electrical problem
- F6E3Communication Error CCU to UI
- F6E7Flow meter disconnected or damaged.
- F6E8Electrical problem with regeneration solenoid valve; open…
- F6E9Water tank valve not functioning; loose connection in valve…
- F7Flowmeter defective
- F7E1No heat
- F7E2MCU Fault or Motor Overheat
- F8Incorrect water level in tub
- F8-E2Drain motor electrical problem
- F8E0Steam Inlet Valve Error
- F8E1No water to dishwasher; water supply off, kinked fill hose…
- F8E3Overflow Condition
- F8E4Overfill switch open; damaged harness, overfill switch…
- F8E5Fill valve stuck open
- F8E6Flow meter disconnected or damaged; control defaults to…
- F8E9Water reservoir valve inoperative
- F9Continuous water entry into tub
- F9E0Mis-wired house or range.
- F9E1Diverter valve cannot find its position
- F9E2Drain motor electrical problem; loose connection in drain…
- F9E3Diverter valve disc missing from tub bottom
- F9E4Lower wash arm error
- F9E5Diverter leak
- FAOWI (Optical Water Indicator) defective
- FBMDV (Diverter Motor) defective
- FCASA (Water Softener Electronics) defective
- FCE0No communication between ECM and Control (washer/dryer)
- FCE1No link between ECM and Wireless Router (washer/dryer)
- FCE2No link between ECM and Internet (washer/dryer)
- FCE3Antenna A problem (washer/dryer)
- FCE4Antenna B problem (washer/dryer)
- FCE5Current Transformer A problem (washer/dryer)
- FCE6Current Transformer B problem (dryer only, 240VAC…
- FCE7Provisioning problem (washer/dryer)
- Stuck KeyThe control detects that a key is stuck in the depressed…
- SUDSSuds detected
- U1Machine failed to prime with water within a given time…
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