In Atlant washing machines, there is a self-diagnosis system: after detecting a malfunction in components and parts, it displays a specific error code on the display. If the F4 error lights up on the SM Atlant scoreboard, then there are problems with draining the water.
On models of washers without a screen, the second indicator will light. However, the machine does not drain when necessary. What to do in this case?
What error F4 means: causes and diagnosis of a breakdown
With an F4 error in the Atlant washing machine, in most cases there are problems with the pump (drain pump). However, before disassembling the washer in search of a problem, eliminate the system crash.
To clear the F4 error, disconnect the CMA Atlant from the network for 20 minutes, and then turn it on again. Look at the display - is the error gone? Then the cause of the malfunction is eliminated.
If the fault code is displayed again, you have to look for a problem. How to fix the situation and solve the problem, read below.
Possible problems and solutions
Start checking items:
- Drain hose. The washer cannot drain if there is a kink or clog in the hose. Disconnect it from the system, wash it under the tap.
- Drain filter. Following the hose, the pump filter is checked. Usually it is located on the front panel, behind the hatch. Take out the filter and clean it of debris.
- Impeller. While the filter is not in place, check the impeller of the pump. To do this, shine in the hole where the filter is installed and see if the impeller is spinning. If it stands without movement, it means that some object interferes with rotation. The interference must be removed by removing the pump and disassembling it.
- Water pump. Inspect the pump for damage or blockage. Check winding integrity.
- Control block. Be sure to check the loop of the wiring that leads from the pump to the board. Damaged wires must either be insulated or replaced. Lastly, the control board is inspected at the time of failure.
Check and replace pump
How to fix a malfunction if the Atlant washing machine generates an F4 error? Check the drain pump. What does this mean, consider below.
- Disconnect the washer from the network and communications.
- Put SM Atlant on its side.
- Below is a drain pump.
- Remove the two mounting screws.
- Remove the pump.
Inspect the impeller after removal. Perhaps a thread was wrapped around her, which prevents her from spinning normally. Remove the foreign element.
How to check the pump with a multimeter:
- Remove the bolts holding the pump to the snail.
- Measure winding resistance.
- Attach the tester probes to the pump terminals.
- If the multimeter does not show anything, the item is defective.
The video will help you:
Reinstall the new part in the same place, tighten the fixing screws.
Other malfunctions
The cause of drain problems and F4 errors on the Atlant washing machine may be the control board. In case of moisture or short circuit, the module elements fail. Each element is responsible for the operation of some part.
Having taken out the module from SM Atlant, visually examine it. Burned tracks, broken contacts can be found on the board itself. If after inspection no problems are found, ring each element of the board with a multimeter.
Found a malfunction? You can contact the service center or try your hand.
Warning, repairing the control module is not easy. To solve the problem, you will need a block diagram, soldering iron skills. Therefore, think carefully before you start repairing the module in the Atlant washing machine to clear the F4 error.