View source for Bezzera Matrix DE/troubleshooting

{{Getting-Started
|brand = Bezzera
|machine_type = Prosumer
|product_banner = <!-- [[File: Wiki_ProductPageBanner_1200x175_BezzeraBZ10_v1.jpg|link=]] -->
|product_page_title = Bezzera Matrix DE
|page_type = troubleshooting
|section1 = No Crema or Bad Tasting Shots
|anchor1 = Bad Tasting Coffee
|section2 = Difficulty Frothing
|anchor2 = Difficulty Frothing
|section3 = Flow Issues
|anchor3 = Flow Issues
|section4 = Machine Is Leaking
|anchor4 = Machine Is Leaking
|section5 = Machine Not Heating Or Powering On
|anchor5 = No Heat No Power
|section6 = Portafilter Handle Not Fitting On Machine
|anchor6 = Portafilter Doesn't Fit
}}
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===No Crema or Bad Tasting Shots===

{{Troubleshooting-No-Crema-Bad-Shots}}
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===Difficulty Frothing===

{{Troubleshooting-Frothing}}

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===Flow Issues===

The first place to start with any flow issue is cleaning the machine. Before going through these steps please make sure the machine is cleaned according to the Cleaning & Maintenance section of this article.

====No Steam From Wand====

#Check the brew function on the machine and see if water is able to flow through the machine for this function.
##If the brew water is not flowing either refer to the [[#No Flow At All|No Flow At All]] section of this article
##If the brew water flows but is not hot refer to the [[#On But Not Heating|On But Not Heating]] section of this article.
{{Content-Columns
|column_1 = 
#Check the hot water function of the machine. If you are able to draw hot water then the steam boiler must be pressurizing and heating, because hot water is expelled from the machine by steam pressure. The steam pressure gauge should also read 1-1.2 Bar to indicate the boiler is pressurized.
##Remove the tip from the steam wand and test the flow. If flow is restored then the tip needs to be cleaned and reattached.
##If the flow is still blocked then there may be a blockage in the steam wand itself. Clean the wand by using a pipe brush that has synthetic or plastic bristles; metal bristles can damage the wand. Then soak the wand in a solution of hot water and backflushing powder for ten minutes. Test flow again.
##If there still isn't flow then there may be a blockage farther back in the steam circuit. The machine may need to be professionally cleaned to remove the blockage.
|column_2 = 
[[File:Wiki-YT-HT_Diagnose_Hot_Water_Obstructions_thumb_660x338.jpg|center|link=https://youtu.be/NwkfwaRVoEs]]
|media_caption = 
How to Diagnose Hot Water and Steam System Obstructions
}}

{{Troubleshooting-Prosumer-Brew-Blocked
|programmable_shots = Yes
|grouphead_instr = <br />
##To clean the group head first unplug the machine and let it cool down. The grouphead is actively heated, so it will need time to cool down before it can be safely worked on.
##Place down a soft cloth or towel and tilt the machine on its back.
##Use a flathead screwdriver to remove the screw on the bottom of the grouphead. Once the screw is removed the shower screen and the diffuser plate can be removed.
##Soak the parts that were just removed in a solution of hot water and backflushing powder.
##Take a grouphead cleaning brush, or an old toothbrush, and use it to scrub down the grouphead, especially the group gasket. Remove any buildup of coffee residues or grounds; the gasket in particular needs to be clean in order to seal properly with the portafilter.
##After the components are clean the grouphead can be reassembled and then flushed with water by running the brew function.
|backflush_instr = [[File:Wiki-YT-BackflushingYourEspressoMachine.jpg|center|link=https://www.youtube.com/watch?v=k1Vkfj83uyg]]
}}

====No Hot Water From Tap====
{{Content-Columns
|column_1 = 
#Check the brew function on the machine and see if water is able to flow through the machine for this function.
##If the brew water is not flowing either refer to the [[#No Flow At All|No Flow At All]] section of this article
##If the brew water flows but is not hot refer to the [[#On But Not Heating|On But Not Heating]] section of this article.
#Check the steam function of the machine. If you are able to draw steam then the steam boiler must be pressurizing and heating, because hot water is expelled from the machine by steam pressure. The steam pressure gauge should also read 1-1.2 Bar to indicate the boiler is pressurized.
##Remove the tip from the hot water wand and test the flow. If flow is restored then the tip needs to be cleaned and reattached.
##If the flow is still blocked then there may be a blockage in the hot water wand itself. Clean the wand by using a pipe brush that has synthetic or plastic bristles; metal bristles can damage the wand. Then soak the wand in a solution of hot water and backflushing powder for ten minutes. Test flow again.
##If there still isn't flow then there may be a blockage farther back in the hot water circuit. The machine may need to be professionally cleaned to remove the blockage.
|column_2 = 
[[File:Wiki-YT-HT_Diagnose_Hot_Water_Obstructions_thumb_660x338.jpg|center|link=https://youtu.be/NwkfwaRVoEs]]
|media_caption = 
How to Diagnose Hot Water and Steam System Obstructions
}}

====No Flow At All====

{{Troubleshooting-Prosumer-No-Flow-At-All
|water_supply = Reservoir
|sensor_instr = Remove the cover of the machine and check the wiring to the sensor to make sure it is connected and in good condition.
|pump_instr   = Check to make sure there are no loose or disconnected wires on the pump.
|valve_instr  = The machine may need to be professionally repaired.
}}

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===Machine Is Leaking===

{{Troubleshooting-Prosumer-Bad-Gasket
|gasket_instr =   <br />
#To clean the group head first unplug the machine and remove the water reservoir.
#Place down a soft cloth or towel and tilt the machine on its back.
#Use a flathead screwdriver to remove the screw on the bottom of the grouphead. Once the screw is removed the shower screen and the diffuser plate can be removed.
#Soak the parts that were just removed in a solution of hot water and backflushing powder.
#Next the group gasket needs to be removed. The gasket on the BZ10 will have a few grooves around the perimeter. Use an awl or a small flathead screwdriver pry the gasket out; the grooves on the gasket are an easy access point to help leverage the gasket out. Gaskets that are particularly old or worn out may get stuck into the grouphead. One trick is to partially screw some self-tapping screwing into the gasket; be careful not to go too far or the screws will puncture the other side of the gasket and possibly damage the grouphead. Then use a pair of needle-nose pliers to pull on the screws. The gasket will come out with the screws.
#Once the gasket is removed use a grouphead brush or old toothbrush to scrub down the grouphead really well. Make sure to remove any built-up coffee residues or coffee grinds.
#When the grouphead is clean the new gasket can be installed. The gasket will have a tapered edge and a flat edge. The flat edge needs to fat the top of the grouphead, and the tapered edge needs to be exposed so that the it can seal with the portafilter. Press firmly all along the edges of the gasket until it is fully in place and is not sticking up anywhere along the circumference.
#Reinstall the diffuser, screen, and screw. Once everything is back together firmly attach the portafilter a few times to help the gasket seat properly, but do not over tighten.
}}

====From The Grouphead====

If leaking is coming from the top of the grouphead, then there may be a loose component or a worn seal.

#First unplug the machine and let it cool down. The grouphead is actively heated, so sufficient time needs to be given for it to cool down in order to safely disassemble it.
#Check to see where the leaking is coming from. Page 9 of the machine's parts diagram shows a blowout view of this assembly.
#If the leaking is coming from between the upper plate (part 37) and the bottom plate (part 39), then the three allen screws may be loose, or there may  be a bad gasket.
##First try tightening the three allen screws down. The allen screws are listed as part 36 on p.9 of the diagram.
##If tightening the screws does not resolve the leak then the gasket may be broken or dirty. Remove the screws; the group assembly will come off once these screws are removed, to hold the group from the bottom so it does not fall down.
##Separate the two plates; the gasket, listed as part 38 on the diagram, will be between them. Make sure it is clean and not damaged or broken. Replace the gasket if necessary.

{{Troubleshooting-Prosumer-Bottom-Leak
|water_source      = Reservoir
|tube_reservoir    = Yes
|level_probe_instr = <br />
####To clean the probe, [[#Removing The Cover|remove the cover]] of the machine. 
####The probe will be on top of the boiler; it is listed as part 6 on p.19 of the machine's parts diagram. The probe is secured by a two bolt assembly. Only loosen the top bolt using an open ended wrench or adjustable wrench.
####Once the top bolt is loosened the probe will slide out. Clean it off use a scrubby sponge and check to make sure it's not damaged. Reinsert the probe into the boiler.
}}

{{Troubleshooting-Prosumer-Wand-Leak
|descalable         = Yes
|tip_instr          = Remove the tip on the wand that is leaking. Both the steam wand and hot water wand will have an o-ring between the tip and the wand. Inspect the o-ring to make sure it is clean. Replace the o-ring if it is damaged or broken. The hot water tip disassembles further. The top and bottom halves of the tip can be unscrewed. If leaking is coming from between these two halves, then the o-ring between them may need to be cleaned/replaced. A blowout of the hot water tip can be found on p.13 of the parts diagram.
}}
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===Machine Not Heating Or Powering On===

{{Troubleshooting-Prosumer-No-Power}}

{{Troubleshooting-Prosumer-Brew-Cold
|temp_adjust_style     = Pressurestat
|pstat_adjust_instr    = <br />
##Unplug the machine and  remove the machine case.
##Once the case is removed locate the Mater pressurestat, which will be located behind the boiler on the left hand side of the machine.
##The adjustment screw for the pressurestat is located on the top. To adjust the pressure turn the screw a quarter of a turn at a time, a small adjustment will make a large change in steam pressure and brew temperature. Clockwise will raise the pressure, counter-clockwise will lower it. Bear in mind that on this machine the steam pressure and brew temperature are correlated, and one can't be changed without affecting the other.
|hls_instr             = [https://wiki.wholelattelove.com/images/0/02/LIVIA_G4_High_Limit_Switch_Reset.pdf  Instructions for resetting the high limit switch can be found in this document.]
}}

{{Troubleshooting-Prosumer-Steam-Cold
|steam_test_instr      = [[File:Wiki_YT_HottoSteamTestonExpobarOffice.jpg|center|link=https://www.youtube.com/watch?v=iM_kVx-Fr3M]]
<br>
* '''NOTE:''' The machine in the video will be of a different brand, but the same procedure will apply to this machine.
|temp_adjust_style     = Pressurestat
|pstat_adjust_instr    = <br />
##Unplug the machine and remove the machine case.
##Once the case is removed locate the Mater pressurestat, which will be located behind the boiler on the left hand side of the machine. 
##The adjustment screw for the pressurestat is located on the top. To adjust the pressure turn the screw a quarter of a turn at a time, a small adjustment will make a large change in steam pressure and brew temperature. Clockwise will raise the pressure, counter-clockwise will lower it. Bear in mind that on this machine the steam pressure and brew temperature are correlated, and one can't be changed without affecting the other.
|hls_instr             = [https://wiki.wholelattelove.com/images/0/02/LIVIA_G4_High_Limit_Switch_Reset.pdf  Instructions for resetting the high limit switch can be found in this document.]
}}

{{Troubleshooting-Prosumer-No-Heat
|hls_reset_instr   = [https://wiki.wholelattelove.com/images/0/02/LIVIA_G4_High_Limit_Switch_Reset.pdf  Instructions for resetting the high limit switch can be found in this document.]
}}

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===Portafilter Handle Not Fitting On Machine===

{{Troubleshooting-Prosumer-Portafilter}}