How to replace the thermostat in a coffee maker
The thermostat is necessary to control the supply of electricity necessary for the heating element to work properly. If problems appear, this leads to problems. Before deciding to replace the thermostat, it is recommended to check it:
- Turn off the coffee maker and remove excess liquid from the container. Then you need to unscrew the mount. This may require a specific screwdriver attachment.
- Use a tester to check the thermostat. Place test leads at each end of the probes.
- If a malfunction is found, it is recommended to replace the thermostat with a similar one.
Important! If unsoldering is required to replace a part, it is recommended not to try to carry out the repair yourself, but to contact the service center.
What to do if the coffee maker does not dispense water
One of the most common breakdowns of a coffee maker is the lack of water supply. There are many reasons for these problems. Even improper operation of the unit can lead to such consequences.
Most often, the lack of water supply is associated with a dirty filter, as well as with a breakdown of the float sensor. If the hot water supply is interrupted, it is recommended to carry out a comprehensive diagnosis to identify all the details of the problem. The float sensor could have been flooded with water or blocked by particles. If the water is too hot, the coffee maker may also fail to detect and dispense liquid.
If, after adding water, you find that the device does not respond, it is recommended to check the operability of the float sensor:
- fill the tank with water;
- wait until the float appears on the surface;
- if this does not happen, it is recommended to clean the area where the float is located.
Cases when serious repairs to this part are required are rare. Usually the problem is solved by replacing the float. When deciding to carry out the work yourself, it is important to choose the right part correctly. In addition, you can contact the technician who will professionally repair the coffee maker.
Lack of water may be due to a dirty filter. You need to choose it based on the type of coffee maker. Continuous steam can damage the plastic parts. To determine the exact cause of the malfunction, it is worth diagnosing.
How to check the heating element of a coffee maker
A tubular electric heater (TEN) is required to heat water and is used in devices of this purpose. Sometimes it becomes necessary to check the tubular electric heater:
- It is necessary to find out what resistance the heating element has. First, find out the power, information about which is listed on the body of the coffee maker, as well as in the attached passport.
- After that, you need to calculate the current that flows through the heating element using the ratio of the revealed power indicator to the voltage. Resistance data is obtained from the ratio of voltage to current.
- The heating element is checked by a special tester. First, the device is disconnected from the network, then the wires are disconnected from the connectors.
- Set the multimeter to measure mode. If the heating element is working properly and there are no problems, the indicator of the device will reflect the resistance close to your calculations. If the tester reads zero, this indicates an internal malfunction and the heating element needs to be replaced. When a unit appears, it is also worth replacing the electric heater, because it was broken.
It is recommended to check for a breakdown on the case. It is necessary to put the device in the "buzzer" dialing mode. One probe should be connected to the output area of the heating element, the other to the body of the electric heater. If there is no breakdown, the buzzer will not start beeping. Otherwise, there is a breakdown on the case.