Bosch Heat Pump Error Code EA 218: How to Fix It

Q: What causes Bosch heat pump error code EA 218?

EA 218 typically results from restricted airflow around the outdoor unit due to dirty coils, blocked vents, vegetation growth, or a malfunctioning outdoor fan. High ambient temperatures and low refrigerant levels can also trigger this error.

Q: Can I continue running my Bosch heat pump with EA 218 error?

No, you should immediately turn off the system when EA 218 appears. Continued operation with an overheating outdoor unit can cause permanent compressor damage and expensive repairs.

Q: How often should I clean my Bosch heat pump outdoor unit?

Clean the outdoor coils and clear debris at least twice per year - before heating and cooling seasons. In dusty areas or homes with pets, monthly cleaning may be necessary.

Q: Why does my Bosch heat pump keep getting EA 218 error?

Recurring EA 218 errors often indicate ongoing airflow issues, a failing outdoor fan motor, refrigerant leaks, or installation problems like insufficient clearance. A professional diagnosis is recommended for persistent errors.

Abstract

Error code EA 218 on your Bosch heat pump indicates that the outdoor unit is overheating due to restricted airflow or component failure. This is a high-severity error that requires immediate attention to prevent compressor damage and system failure.