It can be annoying to see an error code on your washing machine, especially if you’re in the middle of a laundry day. It’s critical to comprehend the meaning of the code FC1 and take prompt action if your Haier washing machine displays it.
The rotation sensor or control board of the motor is usually the source of the FC1 error code. Your clothes may remain damp or unwashed if the washing machine malfunctions or stops working altogether due to this error. There are a number of potential causes for this problem, from small bugs to major mechanical issues.
Thankfully, it’s not always necessary to contact a technician right away. Many times, the problem can be fixed with a straightforward reset or some basic troubleshooting. However, you can save time and avoid further damage to your appliance by being aware of the potential causes of the FC1 error and knowing the appropriate actions to take.
| Error Code | FC1 on Haier Washing Machine |
| Cause | This error usually indicates a problem with the motor or its connection. |
| Solution | Check the wiring between the motor and the control board. If the wiring is intact, the motor or control board may need to be replaced. |
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Elements of the control board of the Haier SM module
The number of semiconductor elements in the washing machine’s control module will astound you when you first look at it. Code of error Sadly, FC1 does not specifically point out a malfunction, so thoroughly inspecting every component will take a great deal of time. It is crucial to understand which sensors are in charge of particular tasks because of this. This will assist in finding and fixing the flaw more quickly.
The control panel and the power unit are the two primary components of a standard control module. You must disassemble the relevant component in order to gain access to the board itself. The washing machine’s multiple units are monitored by semiconductor elements located beneath the protective casing and compound. The components that supply power to the device are located on the left side of the module. Among them are:
- integrated stabilizer KIA7805, designated U14;
- pulse converter based on the PWM controller STR-A6059M;
- network rectifier and filter (BD1 and CE4);
- protective varistor (Z2);
- network fuse;
- key converter microcircuit (designated U12);
- SMPS – also known as a pulse transformer;
- diode D13, capacitor CE2;
- diode D11, capacitor CE8, power supply channel 9V;
- diode D12, capacitor CE9, 12V;
- diode D14, capacitor CE6, power supply channel 12V;
- diode D6, zener diode ZD1, transistor Q1, resistor R103;
- resistor R74, aka 205;
- optocoupler U15, transistor assembly U3;
- processor U13;
- relay X1, which is connected to the heating element circuit;
- integrated voltage stabilizer 5V, designated U.
Now let’s move on to the following control board element. It contains the following semiconductors and communicates with the temperature sensor:
- contact 4 (TH1) of connector RD6;
- resistor R12;
- 37 leg of processor U
The heating element’s operation is impacted by the following semiconductors: transistor Q7, relay X1, 64-leg processor U13, relay X2, 1 and 16-leg assembly U3, and relay X1. The module also features a backup relay control channel. Installing components is optional. Here are the semiconductors that are under discussion:
- 75 leg of processor U13;
- resistor R83;
- transistor Q5;
- relay X4;
- second contact of BL connector.
It is noteworthy that resistors R6, R7, and 67 leg of processor U13 are crucial for maintaining the pressure switch’s steady operation!
The pre-wash compartment valve is operated by the subsequent semiconductor block. These consist of the following: optocoupler U8, triac TR3, contact 1 of connector YL4, resistors R25, R29, optocoupler U8, and the 29th leg of processor U13. The primary wash valve is operated by the following people:
- 31st leg of processor U13;
- 6th and 11th legs of assembly U3;
- resistor R23, R27;
- optocoupler U6;
- triac TR5;
- contact 4 of connector YL4.
The circuit that controls the hot water inlet valve is as follows: jumper J1, resistor R24, R28, sixth and eleventh legs of assembly U3, and the 31st leg of processor U13. In addition, triac TR4, optocoupler U7, and connector YL4’s second contact are present. The drain pump’s functionality is impacted by the following semiconductors:
- 61st leg of processor U13;
- resistor R77, R79, R82;
- transistor Q4, Q3;
- optocoupler U4;
- triac TR20;
- contact 4 of connector BL4.
If issues occur with the washing machine hatch’s locking mechanism, it’s important to keep an eye on the following group of components: The assembly U3, resistor R21, and the processor U13’s 27 legs are joined by 2 and 15 legs. Relay X3, contact 1 of the BL4 connector, and optocoupler U2 can also be included here. The engine speed is managed by the Hall sensor, which is managed by:
- pin 4 and 6 of the BL6 connector;
- resistor R44, R60;
- pins 3,4,5,6 of the U1 microcircuit;
- pin 19,20 of the U processor
There are instances in which the "home assistant" motor abruptly fails. When an electrical network overload or short circuit occurs, for instance, issues with the power supply may be the cause of this. To locate the malfunction, examine the subsequent circuit:
- pin 17 of the U13 processor – power assembly HS1 (output stages and drivers) – U1 microcircuit;
- comparator from the U11 microcircuit – storage choke RA – resistor R58, R57;
- 6,7 legs of comparator U11 – control of supply voltage 300V, the signal goes along the chain with diode assembly BD1, resistor R70 and 41 legs of processor U.
Resistors R73, R72, and 73, 74 legs of processor U13 regulate how the program switching selector operates. These components guard against overloads and short circuits while controlling electrical signals. The effective functioning of the entire system depends on their serviceability.
As you can see, there are enough semiconductor components, which makes fixing the control module potentially challenging. Particularly for novices who have never worked with microcircuits before. You can attempt to fix the device yourself if you understand how to build electrical circuits and are acquainted with resistors, relays, and optocouplers.
The error code FC1 on your Haier washing machine typically denotes a problem with the control board or motor of the appliance. Resetting the machine usually resolves this error, but if it continues, more in-depth troubleshooting or expert repair may be necessary. In this post, we’ll define the FC1 error, discuss some common causes, and offer straightforward solutions.
Your Haier washing machine may give you the FC1 error code, which can be annoying, but it’s a problem that frequently has simple solutions. This code usually indicates a problem with the machine’s motor, which can often be fixed by following a few troubleshooting procedures.
First, unplug the machine and turn it off for a few minutes. This may help clear the error code and reset the system. If the issue continues, look for any obstructions or blockages in the drum that might be keeping the motor from operating as intended. Make sure everything is secure by looking over the wiring connections as well.
Should these actions fail to resolve the issue, it may be imperative to contact a qualified technician. It’s possible that the control board or motor is broken and needs to be fixed by a professional. Maintaining your washing machine carefully and on a regular basis can help avoid problems similar to the FC1 error in the future.
