Error 45 on Hisense dishwashers

What error 45 usually indicates on a Hisense dishwasher

Error 45 on Hisense dishwashers (on some models it appears as F45) is usually associated with a diverter fault. The diverter is the assembly that routes water to different circuits/spray arms so pressure reaches the right area (upper rack, lower rack, or alternating zones).

When the dishwasher detects that this distribution is not being carried out correctly, it protects itself and stops the cycle. In real use, it’s often noticed like this:

• One rack comes out much worse cleaned than the other
• The unit starts, runs for a few minutes, and then stops with the code
• The spray arms seem to spin little or irregularly
• The fault appears when changing phases (when it “redirects” water to another zone)

Note: a failed diverter is one cause, but 45 can also be triggered if the system is working with poor flow due to dirty filters, blockages, or a load that prevents rotation, because water distribution becomes unstable.

What to do to clear 45 and reduce the chance it comes back

The most efficient way to deal with error 45 is: a full reset, basic hydraulic cleaning, and a controlled test. If the code returns, it’s usually time to inspect the diverter and its actuation.

1. Perform a complete power reset
   • Turn the dishwasher off
   • Unplug it from the mains for 5 minutes
   • Turn it back on and run a short program
2. Clean the filters thoroughly (essential for distribution errors)
   • Remove the coarse and fine filters
   • Wash them with hot water and a soft brush (grease and debris compact)
   • Reinstall them properly, with no looseness
3. Clear the spray arms and check they spin freely
   • Make sure they rotate freely and don’t hit tall dishes
   • Check the holes: limescale or debris can reduce pressure
   • Ensure they seat correctly when refitting
4. Review the load so you don’t “choke” circulation
   • Don’t block water paths with overloaded racks
   • Avoid placing trays or boards that obstruct the spray arm
   • Leave gaps so water can circulate through the center
5. Run a controlled test
   • Short program with a half load
   • If 45 doesn’t appear like this, it’s often related to obstructions/loading or an intermittent fault
6. When it makes sense to call service/technician
   • 45/F45 returns after reset and cleaning filters/spray arms
   • Cleaning is always unbalanced in the same zone
   • The error appears on every attempt, especially at the start or when changing phases

   At that point, the usual step is to check the diverter (mechanism and motor), its connections, and the related control, because it’s no longer typically a maintenance issue.

If error 45 is triggered by dirt or lack of flow, it’s often solved with cleaning and a reset. If the code repeats easily, the most effective approach is a technical diagnosis of the diverter to keep water distribution stable