Bosch Dryer Error Code E:7110

E:7110 is a general communication error for the HomeConnect COM module, which is the component that enables Wi-Fi and smart home connectivity. It indicates a failure in the communication link between the COM module and the Operating Unit. This code is the 4-digit equivalent of the older E:109 fault code on Bosch dryers. The first step in diagnosis is inspecting the wire harness between those two components.

E:7110 relates specifically to the HomeConnect smart communication module and does not directly involve the heating or motor systems. However, you should consult a technician to confirm the fault is isolated to the COM module before continuing to run the appliance. Operating with unresolved control board communication faults carries some risk of unexpected behavior.

A power reset may temporarily clear the E:7110 code, but if the underlying communication fault between the COM module and the Operating Unit is not resolved, the error will return. Resetting should be considered a diagnostic step rather than a repair. Persistent reappearance of the code after a reset confirms that a physical inspection of the wire harness and the components is necessary.

A knowledgeable DIYer can attempt the initial diagnostic step, which is checking and reseating the wire harness between the COM module and the Operating Unit. If the harness is intact and properly connected but the error persists, replacing the COM module or Operating Unit typically requires familiarity with appliance disassembly and component handling. If you are not comfortable working inside the dryer cabinet, a qualified technician should perform the repair.

If the fix is simply reseating a loose wire harness connector, there may be no parts cost, though a service call fee would still apply if a technician performs the work. Replacing a COM module typically costs between $80 and $200 for the part, plus labor. If the Operating Unit requires replacement, costs can range from $150 to $400 or more depending on the model and labor rates in your area.