Bosch dishwasher error E27

Any household appliance can malfunction, and understanding the cause can be difficult. In dishwashers with electronic controls, the manufacturer has anticipated this by building in special error codes. In this article, we'll discuss how to decipher one of these codes, specifically the E27 error code in a Bosch dishwasher.

Error decoding

In the instructions for various Bosch dishwasher models, this error is described as insufficient voltage in the network. This means that if the voltage in the network drops below 220 V, the machine stops working and error E27 appears. The error most often occurs in the evening, when the power grid is at its busiest. This is why some dishwasher users use the delayed start feature. By loading the dishwasher in the evening and selecting a start time of three hours, the machine automatically turns on at night, allowing you to unload clean dishes in the morning.

You can try filing a complaint with the State Energy Supervision Authority (GOS ENERGY SUPERVISION) about power outages, which should be handled by the substation supplying your home. However, this may not be effective, and while they're reviewing your complaint and making a decision, a power surge could cause an appliance to burn out.

The second way to fix the E27 error on a Bosch dishwasher is to connect it to the power supply through a voltage stabilizer. We'll describe how to do this correctly in the next section.

Installing a voltage stabilizer

The most difficult thing is to choose the right stabilizer for the dishwasher. Experience shows that it is better to install one stabilizer on several devices at once, for example, on a dishwasher, refrigerator and washing machine, which may also display a low voltage error. If possible, you can install a main stabilizer for the entire electrical network in your house or apartment. While the latter option will undoubtedly be much more expensive, it will also protect all devices from power surges and malfunctions.

The main parameter to consider when choosing a stabilizer is its power rating. It's calculated based on the power consumption of the devices, which can be found in the device's manual. Calculate the total power of all devices connected to the stabilizer and add a margin of approximately 20% to get the result.

Russian stabilizers are considered excellent in terms of reliability and price-quality ratio. They are no worse than European ones, but almost half the price.

Whether a compensating or wide-range voltage stabilizer is better depends on your network. A compensating voltage stabilizer combats low voltage and raises it to normal. It is compact and affordable. A wide-range voltage stabilizer is necessary for those whose network voltage not only drops below normal but also significantly exceeds it. If the voltage in the network fluctuates between 165 and 255 W, then a compensating stabilizer is sufficient, and if surges are higher than 255 W, then a wide-range stabilizer is required. which is more expensive and makes noise during operation.

Connecting a voltage stabilizer designed for 2-3 devices is easy. Just plug it into a power outlet and connect the electrical plugs from your dishwasher and washing machine to the stabilizer. No configuration is required. Connecting a mains voltage stabilizer is a little different. It's connected to the network via terminals, and it's best to have this done by a professional.

Electricians advise connecting household appliances not only through a stabilizer, but also installing a residual current circuit breaker on the network. This is necessary to protect appliances and the electrical network from overload. In other words, if the network load is high, the residual current circuit breaker trips and interrupts the power supply. You can read about fully connecting the dishwasher to the utility system in the article. How to connect a Bosch dishwasher.

So, error code E27 in a Bosch dishwasher warns of a power outage. If this error occurs, it's worth taking it seriously and ensuring the power supply stabilizes. Sometimes, spending $50–$60 on a voltage stabilizer can save not only the appliance from costly repairs but also you from unnecessary stress.

   

1 reader comment

1. September 14, 2021 at 7:21 PM

   Volt:

   When describing a wide-range stabilizer, you indicate a voltage of 165-255, and write the unit in W (Watt is a measure of power, not voltage).

   Answer