Westinghouse Dishwasher Error Codes

Complete Westinghouse Dishwasher Guide

This guide explains all Westinghouse Dishwasher error codes (CH series) with simple troubleshooting steps to help you identify and fix common issues safely before calling a technician.

i10
Water Inlet Timeout
  • Ensure water supply valve is fully open.
  • Check inlet hose for kinks or blockage.
  • Clean inlet filter screen.
  • Verify household water pressure.
i11
Low Water Pressure Error
  • Check water supply pressure.
  • Inspect inlet hose for restriction.
  • Clean inlet filter mesh.
  • Confirm stable water flow.
i20
Drain Blockage
  • Check drain hose for clogs or kinks.
  • Clean dishwasher filter and sump area.
  • Inspect drain pump for debris.
  • Ensure sink drain is not blocked.
i21
Drain Pump Failure
  • Inspect pump impeller for obstruction.
  • Check pump wiring connections.
  • Test pump motor operation.
  • Replace drain pump if faulty.
i30
Leak Detected
  • Turn off water supply immediately.
  • Check base pan for water accumulation.
  • Inspect hoses and seals for leaks.
  • Dry unit and reset after inspection.
i31
Overflow Protection Activated
  • Check inlet valve for stuck open condition.
  • Inspect float switch operation.
  • Ensure drain system is not blocked.
  • Reset appliance after fixing issue.
i40
Pressure Sensor Fault
  • Check pressure hose for blockage or disconnection.
  • Inspect wiring connections.
  • Clean air trap system.
  • Replace sensor if faulty.
i41
Water Level Detection Error
  • Inspect water level sensor hose.
  • Check for air leaks in pressure system.
  • Clean sensor chamber.
  • Replace sensor if readings are incorrect.
i50
Wash Motor Failure
  • Check circulation pump for blockage.
  • Inspect motor wiring connections.
  • Test motor resistance.
  • Replace wash motor if necessary.
i52
Spray Arm Blockage
  • Remove and clean spray arms.
  • Check for food debris blockage.
  • Ensure free rotation of arms.
  • Reinstall and test wash cycle.
i60
Heating System Issue
  • Check heating element continuity.
  • Inspect thermostat and wiring.
  • Verify control board output.
  • Replace heater if faulty.
i61
Water Heating Failure
  • Check heater relay operation.
  • Inspect temperature sensor.
  • Test thermal fuse condition.
  • Replace heating components if needed.
iC0
Control Board Error
  • Perform power reset (5–10 minutes off).
  • Inspect wiring harness for damage.
  • Check for moisture on PCB.
  • Replace main control board if needed.
iC1
Communication Failure
  • Check wiring between control modules.
  • Inspect connectors for corrosion.
  • Restart appliance system.
  • Replace PCB if communication fails.

Frequently Asked Questions


Why does my Westinghouse dishwasher show system messages or error codes?
System messages usually indicate water inlet problems, drainage issues, leak detection, sensor faults, heating system errors, motor circulation problems, or control board communication failures. Restart the dishwasher and inspect the related components if the message returns.
Why does my Westinghouse dishwasher stop working suddenly?
Sudden stoppages may be caused by water supply interruption, drain blockage, overheating protection, door latch issues, or electronic control faults. Turn off the unit, check water and drainage, then restart the cycle.
Why is my Westinghouse dishwasher not filling with water?
Check that the water tap is fully open, the inlet hose is not kinked, and the inlet filter is clean. Low water pressure or a faulty inlet valve may also prevent proper filling.
Why is my Westinghouse dishwasher showing water inlet error?
This usually indicates restricted water flow or inlet valve malfunction. Inspect hose connections, clean filters, and ensure stable water supply.
Why is my Westinghouse dishwasher not draining properly?
Drain issues are commonly caused by clogged filters, blocked hoses, or faulty drain pumps. Clean the filter, inspect the hose, and ensure the sink drain is not blocked.
Why does my Westinghouse dishwasher leave water at the bottom?
Standing water usually indicates a blocked drain hose, clogged filter, or pump failure. Clean all drain components and restart the cycle.
Why is my Westinghouse dishwasher leaking water?
Leaks may come from door seals, hose connections, pump housing, or internal cracks. Turn off water supply immediately and inspect the base for water.
Why does my Westinghouse dishwasher show overflow or flood protection?
Overflow protection is triggered by excess water in the base pan or a stuck inlet valve. Check float switch operation and ensure proper drainage.
Why is my Westinghouse dishwasher not cleaning dishes properly?
Poor cleaning may be caused by clogged spray arms, weak circulation pump, dirty filters, or low water temperature. Clean all wash components and check water flow.
Why is my dishwasher making loud washing noises?
Unusual noises may come from debris in the pump, blocked spray arms, or worn motor components. Inspect and clean internal parts.
Why is my Westinghouse dishwasher not heating water?
Heating issues may be caused by a faulty heating element, thermostat failure, or wiring problems. Check electrical connections and test heater operation.
Why are dishes still wet after cycle completion?
This may be due to heating failure, rinse aid issues, or poor ventilation. Inspect heater and ensure rinse aid dispenser is filled.
Why does my Westinghouse dishwasher show sensor or control errors?
Sensor or control issues may result from faulty pressure sensors, wiring problems, moisture on PCB, or communication failures. Restart and inspect connections.
Why does my dishwasher stop mid-cycle?
Mid-cycle stopping may be caused by power interruptions, water supply issues, overheating protection, or control board faults. Restart after checking all systems.
Why does my Westinghouse dishwasher keep restarting?
This may be caused by unstable voltage, faulty PCB, loose wiring, or overloaded circuits. Check power supply and avoid extension cords.
How do I reset Westinghouse dishwasher system messages?
Turn off the dishwasher, unplug it for 5–10 minutes, then restore power. This resets the control system and may clear temporary errors.
When should I service my Westinghouse dishwasher?
Service is recommended if errors persist, drainage fails repeatedly, leaks continue, heating is not working, or the dishwasher stops mid-cycle frequently.
Important: Westinghouse dishwasher system messages are designed to protect key components such as the water inlet system, drain pump, circulation motor, heating element, sensors, and control board. If issues continue after troubleshooting, disconnect power and contact a qualified appliance technician.