Parts for Bosch HMCP0252UC/01: Top Outer Case / Magnetron Parts

Protective cover panel for microwaves and wall ovens. Installs on exterior housing. Replace if cracked, chipped, discolored, or missing for appearance.

This temperature regulator is the oven's thermostat. It senses cavity heat and cycles the heating source to hold the set temperature, helping restore accurate baking performance and more consistent cooking results.

• Monitors oven temperature via its sensing bulb/capillary and controls the heating circuit
• Helps maintain the set temperature during preheat and baking
• Common symptoms of a failed regulator: oven runs too hot or too cold, never reaches set temp, wide temperature swings, or won't shut off
• If the knob turns but temperature doesn't respond, the regulator may be faulty

• Disconnect electrical power before servicing; for gas models, also shut off the gas supply
• Access through the control area/back panel; note the original routing of the capillary tube and sensing bulb
• Handle the capillary tube carefully—do not kink or sharply bend; route and secure it in the original path and location
• Transfer the control knob and any mounting hardware from the old regulator if required, then verify proper shaft alignment before reassembly

Microwave not heating food? The magnetron generates microwave energy for cooking. This repair requires electrical safety knowledge and proper discharge.

Holder component for built-in microwaves and wall ovens. Replaces broken, cracked, or missing holder parts to restore proper mounting and support.

Microwave won't turn on or power is completely dead? A blown fuse often causes this. This microwave fuse protects circuits from power surges. DIY fix.

Microwave won't heat but powers on? Replace the high voltage transformer. Also fixes loud humming or blown fuses. Moderate difficulty repair part.

Microwave not heating food evenly or at all? A failed diode disrupts power flow to the magnetron. This electronic component regulates electricity flow.

This plastic-foil capacitor is used in the appliance's electrical circuit to provide stable capacitance. It supports proper motor and power-circuit operation, helping components start and run smoothly while minimizing electrical noise. What it does:

• Stores and releases electrical energy to support motor starting/running or stabilize the power circuit
• Helps reduce electrical noise and voltage spikes in the system
• A failing capacitor can cause hard starting, humming, weak or intermittent operation, or tripped breakers
• Visible bulging, cracks, or heat damage on the capacitor indicates replacement is needed

• 1 capacitor

• Disconnect power at the breaker before servicing; verify no power is present
• Capacitors can retain a charge—discharge safely using appropriate tools and procedures
• Note wire positions and terminal orientation; transfer one lead at a time or take a reference photo
• Mount securely and keep wiring clear of sharp edges, heat sources, and moving parts

Microwave overheating or running hot? This fan motor circulates air to cool components. Common fix for units that shut off or display error codes.

Fix a microwave with no power or that won't turn on. This fuse protects against electrical overload. Common DIY repair, requires multimeter testing.

Conditions incoming AC power and suppresses electrical interference to protect electronics. Replace if your microwave won't start or behaves erratically.

This replacement screw secures appliance panels and components at their mounting points. Swap in a new screw to restore a tight, rattle-free fit when the original fastener is missing, stripped, or corroded.

• Fastens the designated panel, bracket, or component in place
• Replaces a missing, stripped, or rusted screw
• Helps address loose panels, gaps, rattling, or misalignment at the mounting point
• Maintains proper assembly integrity after service or vibration

• Disconnect power; shut off water supply if working near plumbing
• Match to the removed fastener and replace one at a time to preserve alignment
• Start threads by hand to avoid cross-threading; use the correct driver bit
• Tighten snugly and avoid overtightening, especially into plastic or thin sheet metal