Jvm1870wf Parts

This replacement rack holder supports the removable wire rack inside your microwave, keeping it steady and level. Replace a cracked or missing holder to restore stable, reliable two-level cooking performance. What it does:

• Holds the interior wire rack securely against the cavity wall
• Maintains correct rack height and alignment for stable support
• Helps prevent rack wobbling, slipping, or rattling during use
• Common signs of failure: cracked/heat-damaged holder, rack tilts or falls, scorch/arcing marks near the support

• 1 rack holder

• Disconnect power by unplugging the microwave or switching off the circuit breaker
• Remove the wire rack and note the holder's orientation and location
• Remove the existing holder (release clip or remove screw) and transfer any original mounting hardware if needed
• Seat the new holder fully, reinstall the rack level, and test with a microwave-safe cup of water

This high-voltage transformer supplies the elevated voltage needed by the magnetron to produce microwave energy. Replacing a faulty transformer restores heating performance and reduces risk of electrical faults in the oven. What it does:

• Converts line voltage to the high voltage required by the magnetron to generate microwaves.
• Can cause no-heat conditions when failed; replaces a transformer that no longer powers the magnetron.
• Works with the HV capacitor and diode as part of the microwave high-voltage circuit.

• Disconnect power at the house breaker and unplug the appliance before servicing.
• The high-voltage capacitor can hold a dangerous charge—discharge it properly before touching HV components.
• Use insulated tools and avoid contact with transformer terminals; refer to the service manual for wiring and mounting details.

This gas flame sensor detects whether a burner's flame is present so the range/oven's gas valve and ignition control can operate safely. It helps restore reliable ignition and prevents the valve from staying open when no flame is detected. What it does:

• Senses the presence of a gas flame and signals the control to keep the valve open
• Helps prevent gas flow if a flame is not detected
• Can stop ignition or cause the oven/range not to heat when failing
• Commonly replaced when burners won't stay lit or control shows ignition-related errors

• One gas flame sensor

• Turn off electrical power and shut off the gas supply before servicing
• Handle the sensor and its connector carefully to avoid damage
• Reinstall in the exact position and orientation; loose connections can cause false faults

This run capacitor helps the appliance motor start and run smoothly by storing and releasing electrical energy. Replacing a worn capacitor can restore reliable motor operation and reduce abnormal motor noise or cycling. What it does:

• Provides the brief power boost motors need to start and maintain RPM
• Helps stabilize motor voltage and improve run efficiency under load
• Commonly linked to symptoms such as motors that hum but won't start, slow or intermittent motor operation, or unusual motor noise
• Reduces stress on motor windings that can lead to premature failure when functioning properly

• One motor capacitor

• Always disconnect power at the breaker or unplug the appliance before servicing
• Capacitors can hold a charge; discharge safely
• Observe proper polarity and mounting location during installation; secure wiring and connectors

This wire rack assembly provides a sturdy, removable shelf for your oven, giving stable support for cookware and bakeware and restoring proper shelf placement and clearance. What it does

• Replaces a bent, damaged, or missing oven shelf so pots and pans sit level during baking and roasting
• Restores smooth sliding and correct clearance for consistent cooking results
• Helps prevent cookware from tipping or shifting on weakened racks
• Fits into existing rack supports or side rails for secure positioning

• Remove power to the appliance and allow it to cool completely before installing
• Slide the rack into the oven rails or supports until fully seated; it rests level
• Wear gloves to avoid pinches or sharp edges while handling the rack
• No special tools usually required; refer to your owner's manual for model-specific guidance

This part is white in color.

This upper duct directs exhaust and airflow inside the appliance to help proper ventilation and heat management. It replaces a damaged or warped upper duct to restore correct internal airflow paths. What it does:

• Channels exhaust and internal airflow between the cooktop/vent area and the vent housing
• Restores proper airflow if the original duct is cracked, bent, or blocking ventilation
• Helps reduce unusual smells or cooking smoke reaching cabinetry by maintaining the exhaust path
• Works as a structural guide for adjacent panels and components in the vent area

• Follow the appliance service manual for disassembly steps and correct reinstallation order
• Disconnect power (and gas if applicable) before servicing to avoid shock or injury
• Use appropriate hand tools; avoid overtightening fasteners that can crack the duct or mounting tabs