Customer Questions and Answers for Th Capacitor (Control Circuit Capacitor) by Bosch

This TH capacitor is an electrical control-circuit capacitor used on compatible Bosch appliances to help stabilize voltage and filter electrical noise for reliable control-board operation. Replacing a failed capacitor can address intermittent control issues. What it does

• Stabilizes control-board voltage and helps filter electrical noise that can cause erratic behavior.
• Supports reliable startup and operation of control circuits.
• Common symptom link: intermittent or unexplained control-board errors, erratic or non-responsive controls.
• Common symptom link: appliance displays control or error codes related to electronics or intermittently fails to start.

• Disconnect power to the appliance at the breaker before servicing to avoid shock.
• Discharge any capacitors and allow boards to sit before touching components; use appropriate ESD precautions.
• Only replace with the exact part number; confirm orientation and connector fit before reassembly.