Whirlpool WP8578335 Rotary Temperature Switch

Product Description

The WHIRLPOOL WP8578335 is a rotary automatic temperature control (ATC) switch designed for use in top-load washing machines. This component regulates water temperature selection during the wash cycle by translating the user's temperature setting into an electrical signal that controls the water inlet valve. It is a direct OEM replacement part measuring 2.5 x 2.0 x 2.0 inches. Installation is typically performed by appliance service technicians during routine control replacement or water temperature malfunction diagnosis.

This rotary temperature switch is used in residential top-load washing machines across multiple Whirlpool, Maytag, and related brand model families. It is suited for machines experiencing incorrect water temperature, failure to advance temperature settings, or switch failure confirmed through continuity testing. Compatible model numbers are listed below in the Compatibility section.

Key Features

• Rotary ATC switch design for direct OEM-style replacement
• Controls water temperature selection during wash cycles
• Compact form factor at 2.5 x 2.0 x 2.0 inches for straightforward fitment
• Compatible across a wide range of residential top-load washer models
• OEM part number WP8578335 ensures correct fit and function

Compatibility

Compatible with the following models: 7MMSL0100TW0, 7MMSL7959TW0, 1CWTW5700SW0, 7MMSL7959TW1, NTW5700TQ0, MTW5830TW0, MTW5720TQ0, MTW5840TW0, MTW5807TQ0, MTW5740TQ0, MTW5721TQ0, MTW5870TW0, MTW5820TW0, MTW5800TW0, MTW5730TQ0, MTW5805TW0, MTW5707TQ0, MTW5770TQ0, MTW5700TQ0, MTW5821TW0, NTW5705TQ0, WTW5550SQ0, WTW5550ST0, WTW5600SQ0, WTW5700SW0.

Installation Notes

Installation should be performed by a qualified appliance technician. Disconnect power to the washing machine at the breaker or by unplugging before beginning any disassembly. The control panel or console must be accessed to reach the temperature switch, so follow standard disassembly procedures for the specific model. Verify switch function with a multimeter before and after replacement to confirm correct continuity across terminals.