Thanks to the electronic control board, the dishwashers have a self-diagnosis system. When a malfunction occurs, the module sends a fault code to the PMM display. If you notice that the Krona dishwasher displays an E1 error on the display, then there is no water in the hopper.
Decryption and causes of the malfunction
Error code E 1 in Krona models indicates that the time for waiting for water intake has expired - it is not drawn into the tank. For what reasons does this happen:
- Blockage in the inlet hose, filter, valve.
- Inlet valve malfunction.
- Activation of Aquastop leakage protection (in such cases, code E15 may appear).
- Open circuit.
First, eliminate a possible network failure, try to reset the error:
- Unplug the machine.
- Wait 15-20 minutes.
- Repeat start. Do the icons burn on the screen? Need to look for a problem.
Debugg
You have loaded the dishes, started the washing cycle. Water began to flow through the pipes, but did not get inside, or a very small amount was accumulated. What to do, how to fix the problem?
Likely blockage
From the sewage system, small debris and rust penetrate the system, which clog the parts. Start by checking the hose:
- Shut off the water supply.
- Unscrew the hose from the PMM body.
- Take a look inside. If there is a blockage, flush it under pressure from the tap.
- Then inspect the filter mesh. Wash too, and in case of severe contamination, soak in a solution of citric acid.
- Further inspect the intake valve channels.
If no blockage is found, proceed to check the operability of the element.
Valve malfunction
Additionally, you need to check its wiring. The control board sends a signal to the valve about the intake of water, its membrane opens and passes the flow. But if the wiring is broken, then the signal does not reach the destination. How to fix the situation? It is necessary to replace the loop.
To check the valve, apply 220 volts to its coil. Does the membrane open? So the item is working.
The electronic part can be checked with a multimeter. Attach the probes to the contacts of the part. The work item should show 2 to 4 kΩ. In case of breakage, install a new part.
Hose "Aquastop"
Inlet hoses are often equipped with a mechanical Aquastop. There is an absorbent sponge inside, which, when leaking, is saturated with water and shuts off the flow. In this case, only replacing the part will help.
Now you know why the Krona dishwasher can display E1 icons on the screen. Use our instructions, fix the problem with your own hands.