Bosch 11003806 Heat Exchanger (Water Matrix Assembly), 1 Unit OEM Part

Product Details

Genuine Bosch part. Bosch brands include Bosch, Thermador, Gaggenau, and others.

Cross Reference Information

Part Number 11003806 replaces AP5953691, 00747405, 00752390, 4163635, PS10061181.

Description

• Directs incoming water through internal channels to regulate fill and pressure
• Works as a thermal reservoir to moderate wash temperature changes
• Common failure signs: water leaking from left side, poor water circulation/filling, error codes related to water intake, or visible cracking/discoloration of the matrix
• Also causes extended cycles or incomplete fills when restricted by limescale or debris

• Disconnect power and shut off water before service; pull unit out for left-side access
• Keep unit level; have towels ready—residual water may drain from hoses
• Photograph hose routing and sensor/clip locations before removal; move clamps to reuse
• Inspect and replace any worn O-rings, seals, or clamps during reassembly to prevent leaks