Great video. I find it easier to snip the legs off of components that you know you are replacing. Makes it easier to heat a pin and either suck it off the board or grab it with tweezers. I will have a go at mine tomorrow. Cheers.
I have several of these machines of various models that have a maximum grinding time of 3 seconds no matter what the ground bean volume is set to. When the bean volume is set to maximum the grinder should typically go for at least 7 seconds. The typical fix for this issue is to replace the control board, but if someone knew which component on the control board is the one that causes this issue from generation to generation on these machines, it would be much less expensive to replace a resistor or a capacitor than a whole motherboard. Mr. Lambert seems like a man who probably already knows the answer to this, or could possibly figure it out. Yes?
Thank you your post. I have a machine with the same control board with the following symptom: A) coffe making is good, 231V AC on the F8 pin on the board, boiler is heating. B) After a coffe making the boiler starts to cool from 91 degree celsius to 65 degree celsius. It is about 10 minutes. C) Reaching this 65C temperature the display show "Heating...." but there is no AC on the heating element. D) After couple of minutes the display change from "Heating" to "General Alarm". It is clear the controller try to heat up the boiler again but at this time no AC out on the F8 pin. Sensing no desired temperature change within a given timeout in the boiler the system gives the "General alarm" message. TCOs seems to be OK, zero ohm all the time. What do you think what could be the problem?
I am no expert, from what you are saying and your board is the same i would check the connection on X7, this is the coffee boiler temperature sensor, the sensor maybe defective.
@@lambert0259 I think the sensor is OK, that is the reason of the "Heating" message: system recognizes the low temperature, start the new heating cycle with the "Heating" message. On the otherhand it is worth to check to make sure it is working right. I am planning to solder test wires to the PIC controller output which controls the TRIAC gate circuit. I hope this is a HW and not an SW issue due to some flash corruption.
Great video. I find it easier to snip the legs off of components that you know you are replacing. Makes it easier to heat a pin and either suck it off the board or grab it with tweezers. I will have a go at mine tomorrow. Cheers.
I have several of these machines of various models that have a maximum grinding time of 3 seconds no matter what the ground bean volume is set to. When the bean volume is set to maximum the grinder should typically go for at least 7 seconds. The typical fix for this issue is to replace the control board, but if someone knew which component on the control board is the one that causes this issue from generation to generation on these machines, it would be much less expensive to replace a resistor or a capacitor than a whole motherboard. Mr. Lambert seems like a man who probably already knows the answer to this, or could possibly figure it out. Yes?
Thank you your post. I have a machine with the same control board with the following symptom: A) coffe making is good, 231V AC on the F8 pin on the board, boiler is heating. B) After a coffe making the boiler starts to cool from 91 degree celsius to 65 degree celsius. It is about 10 minutes. C) Reaching this 65C temperature the display show "Heating...." but there is no AC on the heating element. D) After couple of minutes the display change from "Heating" to "General Alarm". It is clear the controller try to heat up the boiler again but at this time no AC out on the F8 pin. Sensing no desired temperature change within a given timeout in the boiler the system gives the "General alarm" message. TCOs seems to be OK, zero ohm all the time. What do you think what could be the problem?
I am no expert, from what you are saying and your board is the same i would check the connection on X7, this is the coffee boiler temperature sensor, the sensor maybe defective.
@@lambert0259 I think the sensor is OK, that is the reason of the "Heating" message: system recognizes the low temperature, start the new heating cycle with the "Heating" message. On the otherhand it is worth to check to make sure it is working right. I am planning to solder test wires to the PIC controller output which controls the TRIAC gate circuit. I hope this is a HW and not an SW issue due to some flash corruption.
Hi did u resolve this issue im experiencing the same thanks.
Hi, can u tell me what kind of electronic parts did u use? Inductance (H) ? resistor(ohm?)thks
the inductor is 1mh and the resistor is 47ohms. hope that helps
@@lambert0259 thks.. i have 2 faulty powerboard... i just order that electronic parts!
@@lambert0259 Is it 1/4 or 1/2 watt?
@@dalskiBo As the resistor showed signs of burning i used a higher wattage resistor of 3W hope this help
@@lambert0259 What is the function of the resistor?