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Coffee DB13 diode

No water moig

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Parts led diode


Sure it's a diode; I think it would be a neon light. If you are able to take the neon light out, I think you will find a similar part in catalogues such as RS or Farnell (maybe Maplin).

Aug 25, 2013 | FrancisFrancis! X1 Espresso Machine

1 Answer

Light on but nothing happens


Sound like the diodes stuffed FOR THE MAIN UNIT.
I'd be taking back to the supplier/ STORE

Apr 30, 2012 | DeLonghi BC0261 Espresso & Coffee Maker

1 Answer

No steam on Capresso Impressa S8


Most likely problem is over temp cut out switch. Small diode attached to the boiler to prevent damage during boil dry, or fault in the heating element itself. Difficult machines to repair and best handled by a service technician.

Sep 13, 2009 | Jura Capresso Impressa S8 Coffee Maker,...

1 Answer

No lights and no display. I have verified electrical outlet is providing electricity to the unit.


Upon visual inspection of the PC board, a small portion of the board had been burned. Using a voltmeter to check components in that area, it was discovered a 24 volt zener diode was nonfunctional. I then purchased two 12 volt zener diodes (no 24 volt was available), and installed / soldered them, in series, on the PC board. I then reassembled the Gevalia cm 500 unit and made delicious coffee. What remains unknown is what precipitated the failure of the 24 volt zener diode.

May 23, 2009 | Black & Decker GT300 Coffee Maker

1 Answer

Breville 800E5Xl didoe


DIODE ZENER 24V 1W 5% DO41 1N4749AOrder 'diode zener 24v 1w 5% do-41 - 1N4749A' online from Digi-Key. Manufactured by Fairchild Semiconductor. Digi-Key part number 1N4749A-ND.
parts.digikey.com/1/parts/420514-diode-zener-24v-1w-5-do-41-1n4749a.html - 22k -

Jul 14, 2008 | Breville Die Cast 800ESXL Espresso Machine

2 Answers

Coffee maker RIVAL MODLE CM800


Several possibilities:
  • bad thermostat
  • bad timer
  • bad element
You can check all the items except the timer (if electronic) by disassembling the unit and using a multimeter. The thermostat is a black button about 12 mm (1/2 inch) in diameter with two wires. The heater is usually part of a casting and has connectors on it. Also, cycle all connectors to defeat corrosion.

May 29, 2008 | Coffee Makers & Espresso Machines

1 Answer

FixmeBob Great help with Breville 800esxl


I had a similar problem, but no blinking light, only cold coffee. I tapped on the relay (black box on circuit board) and violá.  Red light, hot coffee, and happiness.  The machine did the same thing a couple of weeks after the "fix", and a good slap to the left side, and I was back in business.  My guess is that your switch is bad or sticking.  Good luck. 

Feb 06, 2008 | Breville Die Cast 800ESXL Espresso Machine

3 Answers

Machine won't turn on - no power!


With the machine facing you, the circuit board is mounted on the left panel. Simply unscrew the grey plastic and you will see it inside a clear case.
The two grey conical inserts are recessed into the machine (next to where water drips out into the coffee), one on each side. Just use a long philip head screwdriver to unscrew them until they drop down.
They hold the top lid in place. Now push the top lid towards you,
pretty easy. Also take out the water tank in the back (the one swing out) to make room to access the circuit board. With the machine back facing you, open the water tank, use your finger to pull the plastic tap. One side of the tank will just drop, and just jiggle the tank out.

Remove the circuit board case, pull out all the wires with a piler,
they are sort of tight, but you can pull them out carefully. Label them so you won't mix them up.

With the circuit board out, I probed around with a multimeter. I found ZD6, a zener diode, part # 1N4749A didn't give me a 0.46V reading. (there is another zener diode with the same part # that gives 0.46V (ZD1). ZD6 is next to two blue electrolytic capacitors. Unsolder ZD6 from underneath and replace it.
It is like 5 cents, definitely not freaking $40.

Dec 07, 2007 | Breville Die Cast 800ESXL Espresso Machine

1 Answer

Coffe maker trouble


Mine did this too just the other day. I figured its either the thermostat or the heating element. However, i traced the wires leading to the both and found what looks to be a Zehner Diode. Tested this, it appeared to be bad. Did a quick bypass test to test theory. Turned it on for a sec with Diode bypassed and i mean literally a sec. Element heated right up. I believe all i need to do is replace this bad diode and all will be fine. Maybe you have same problem??? Now if only i could figure out the value of the original so i can replace it properly. :)

Nov 28, 2007 | Emerson EM83721 Coffee Maker

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