Bosch Dishwasher Repair – North Canton, OH (SHP78CM5N/28)

Our team responded to a service call on Glenwood Street in North Canton for a Bosch dishwasher displaying an E21-30 error code. The customer had already cleaned the filter and checked the impeller, but the error persisted. We found the zeolite fan was blocked and cleared it to restore normal operation.

The Problem

The customer reported an E21-30 error code that kept recurring on their Bosch dishwasher. They had already cleaned the filter and checked the impeller as preliminary troubleshooting steps, but the error continued to appear.

Diagnosis

When we arrived, the E21-30 error code was present on the display. Our inspection revealed that the zeolite fan was blocked, preventing proper operation and triggering the error code.

The Repair

• Parts replaced: No parts replaced
• Work performed: Used shopvac to clear zeolite fan
• Result: Unit successfully passed test cycle

Is It Worth Repairing?

This Bosch dishwasher required only cleaning to resolve the error code, making it an excellent repair value. Bosch builds quality dishwashers that typically provide many years of reliable service when properly maintained. Since no parts were needed, this was a straightforward and cost-effective fix.

Maintenance Tips for Bosch Dishwashers

• Clean the dishwasher filter monthly to prevent debris buildup that can affect drainage and fan operation
• Run the dishwasher’s self-cleaning cycle periodically to maintain internal components like the zeolite drying system
• Check door seals and spray arms regularly for food particles that could impact performance

Appliance Repair in North Canton, OH

North Canton is in Stark County — an area we cover regularly from our base in Louisville, OH. We also serve North Canton, Canton, and Alliance. Louisville Appliance Repair is owned and operated by Samuel Willhite, a master-certified technician with Bosch and Speed Queen factory authorizations. If your dishwasher needs service, schedule online or call (330) 693-9163. You can also find us on Google and read verified reviews from customers across Stark County and surrounding areas.