772437 Genuine Dishwasher Heat Exchanger for Bosch, Siemens, Neff Dishwashers, Also Listed as 00772437

BSH part 772437 is a genuine heat exchanger for Bosch, Siemens and Neff dishwashers, also listed as 00772437. Please read this before ordering. The U-bend that links the two middle outlets on this heat exchanger is no longer available, so you'll need to work out your own way to connect those two outlets. Check the number against the parts list for your E-Nr as well, since BSH has used several heat exchanger versions.

What a dishwasher heat exchanger does

On BSH dishwashers that have one, the heat exchanger is a flat tank fitted to the side wall of the tub. It holds cold water during parts of the cycle, which helps condense steam for drying and helps the machine reuse heat. Cracks, blocked passages or leaking connections can cause water in the base, an anti-flood error, poor drying, or the machine filling and draining incorrectly. A leaking heat exchanger often shows up as a tripped Aquastop or a puddle in the base tray.

Part details

• Genuine BSH part 772437
• Also listed as 00772437
• Heat exchanger for Bosch, Siemens and Neff dishwashers
• U-bend for the two middle outlets not included and no longer available

Fitting the heat exchanger

Switch the dishwasher off at the wall, close the tap and remove it from the cabinet. Put towels down, as the heat exchanger and its hoses usually hold some water. Photograph every hose before disconnecting. Plan how you'll join the two middle outlets before you start, since the original U-bend can't be supplied. Run a full program afterwards and check the base for leaks.

Questions about this part

What can I use to join the two middle outlets?

You'll need a hose or fitting that suits the outlet size and handles hot water, secured with suitable clamps. Measure the two spigots before buying anything, and check the joint for leaks after the first run.