SCA700 — Identify, Diagnose and Replace (Confirm Appliance & Part First)

Understanding the Problem

Brief explanation: 'SCA700' by itself appears to be a part code but is not uniquely tied to a single appliance or universally known component without a brand/model context. It may be a control board, sensor board, module, or other component. Use the steps below to identify exactly what SCA700 is on your unit, diagnose whether it has failed, and—if needed—replace it. 1) Confirm appliance make & model: Find the appliance model and serial number (usually on a sticker inside the door, behind a kick plate, or on the back). Record brand, model and full serial number. This is required to look up the correct SCA700 reference or OEM equivalent. 2) Locate the SCA700 on the appliance: Open the access panel where the suspected part is located (control console for ranges/washers/dryers, back panel for refrigerators, under-sink for dishwashers). Look for printed markings on circuit boards or stickers that read 'SCA700'. Take clear photos of the board, connector layout, and any part numbers or barcodes. 3) Visual inspection: With power off and unplugged, inspect the board for burnt components, bulging capacitors, cracked solder joints, scorched connectors, or loose wiring. Smell for burnt odor. If you see obvious damage, the board is likely faulty. 4) Check upstream items first: Many symptoms attributed to a control board are actually caused by blown fuses, tripped thermal cutoffs, bad power supplies, or wiring harness faults. Use a multimeter to check household power to the appliance, internal fuses, high-voltage fuses/thermostats, and harness continuity. 5) Test basic functions: If the board is responsible for user interface or motor control, verify whether any LEDs, displays, or relays on the board energize when power is applied (use a non-contact tester or multimeter carefully). For sensors, test expected resistance or voltage per service manual. 6) Compare error codes and service manual: Note any error codes on the appliance display. Cross-check those codes with the manufacturer service sheet or tech sheet (often mounted inside a panel) — they often identify which board or sensor is responsible. 7) Confirm replacement part: Once you have brand/model and photographed the board, search OEM parts diagrams or contact the manufacturer/parts supplier to confirm whether the SCA700 is the correct part number for your unit and to obtain the exact replacement part number. DO NOT assume one SCA700 maps to all brands. 8) Replace the part (general steps): a) Unplug the appliance or turn off breaker. Confirm power is removed. b) Remove access panel(s) to expose the SCA700 board. Keep screws in a safe place. c) Label or photograph every connector and wire location before disconnecting. Use masking tape + marker if needed. d) Disconnect all harnesses, sensors and ground wires. Remove mounting screws and extract the board. e) Install the new board by reversing removal steps: secure with screws, reconnect harnesses exactly as photographed, reattach ground. f) Reinstall panels, restore power and run a diagnostic / test cycle per the service manual. 9) Verify operation: Confirm that the symptoms are resolved, watch for error codes, and test all functions controlled by the replaced part. Safety note: Always disconnect power before working on appliances. Boards can contain lethal voltages (especially in microwaves and refrigerators). If you are not comfortable working with mains electricity or electronics, hire a qualified appliance technician.

Common Symptoms

Unresponsive controls or display, intermittent operation, appliance won't start, specific functions (motor, heater, dispenser) fail, or appliance shows persistent error codes referencing control or sensor faults.

Common Causes

• Failed control board or module (age, thermal stress, power surge)
• Wiring harness failure or loose/oxidized connectors
• Upstream power issue (blown fuse, failed power supply, or thermal cutoff)

Popular Parts That Fix This Problem

These are the most common replacement parts that fix this problem. When you're ready to order, click below to find the right part at ProsourceParts.com — just search by your appliance model number for a guaranteed fit.

Frequently Asked Questions