View source for Gaggia Evolution/troubleshooting

{{Getting-Started
|brand = Gaggia
|machine_type = Semi-Automatics
|product_banner = [[File:Wiki_ProductPageBanner_1200x175_GaggiaEvolution_v1.jpg]]
|product_page_title = Gaggia Evolution
|page_type = troubleshooting
|section1 = No Crema or Bad Tasting Shots
|anchor1 = Coffee Tastes Bad
|section2 = Difficulty Frothing
|anchor2 = Difficulty Frothing
|section3 = Flow Issues
|anchor3 = Flow Issues
|section4 = Machine Is Leaking
|anchor4 = Machine Leaking
|section5 = Machine Not Heating Or Powering On
|anchor5 = No Heat or Power
|section6 = Pannarello Nozzle Not Staying Attached
|anchor6 = Wand Falling Off
|section7 = Portafilter Handle Not Fitting On Machine
|anchor7 = Portafilter Won't Fit
|section8 = Machine Is Making Loud Noises
|anchor8 = Loud Machine
|section9 = Too Much Steam/Milk Boiling
|anchor9 = Too Much Steam/Milk Boiling
|section10 = Replacing the Portafilter Handle
|anchor10 = Replacing the Portafilter Handle
}}
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===No Crema or Bad Tasting Shots===

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

{{Troubleshooting-Pannarello-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 [https://wiki.wholelattelove.com/Gaggia_Evolution/cleaning_and_maintenance  Cleaning & Maintenance] section of this article.

{{Troubleshooting-Gaggia-Classic-No-Steam}}

{{Troubleshooting-Gaggia-Brew-Blocked-Group-Valve}}

{{Troubleshooting-Gaggia-Semi-Steam-Blocked-No-Solenoid}}

{{Troubleshooting-Gaggia-Semi-Tube-Tank-No-Flow}}
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===Machine Is Leaking===

====Coffee Spraying From Portafilter====
This machine utilizes pressurized baskets. If coffee is spraying from the spouts of your portafilter during brewing then one of the pressurized baskets is being used without the required 2-way pin in place. A pressurized basket can be identified by holding the basket it up to light; pressurized baskets will only have one hole that you can see through. The 2-way pin must be inserted into the portafilter below the basket when pressurized baskets are being used. Non-pressurized baskets, the ones that have a lot of holes you can see through if held to light, do not require the use of a 2-way pin.

====Between Portafilter & Grouphead====
{{Content-Columns
|column_1 =
If the machine is leaking from between the grouphead and the portafilter then the grouphead gasket is either pushed out of place and needs to be reinserted properly, or the gasket is worn out. Typically grouphead gaskets will wear out from 6 months to a year depending on how heavily the machine is used. Premature wear to this gasket can be caused by using excessive force when attaching the portafilter, or leaving the machine on for long periods of time without use. It is important to distinguish where the leaking is occurring. If the gasket is leaking from farther up in the machine and coming down around the grouphead then refer to the section of this article which discusses [[#From Top Of Machine|leaking from the top]] of the machine instead. 

If the leaking is coming from between the portafilter and grouphead where you twist the handle on, then the gasket will need to be replaced. Instructions for replacing the gasket of this machine can be found in the video on the right and replacement gaskets are available for purchase [https://www.wholelattelove.com/gaggia-group-gasket here]. You can try using the instructions to clean and reseat the current gasket. If that does not resolve the leak then the gasket will need to be replaced.
|column_2 = 
[[File:Wiki-YT-HowToReplaceTheGroupGasketOnTheGaggiaClassic.jpg|center|link=https://youtu.be/QO7ttCmXlx8]]
|media_caption = How to Replace the Group Gasket
}}

====From Top Of Machine====
[[File:GAGGIA EVOLUTION Knob Removed.jpg|200px|thumbnail|right|Knob Removed]]
A leak from the top (or head) of the machine typically indicates a loose connection or broken part inside the machine. If the leaking is coming from between the portafilter and the grouphead then refer to the section of this article which covers [[#Between Portafilter & Grouphead|changing the group gasket]]. Otherwise follow these steps to identify the source of the leak. It may be necessary to run the machine with the top removed in order to identify the leak.

#Turn the machine off and unplug it.
#Open the top of the machine. Check for any loose hoses, broken hoses or hoses with pinhole leaks, or any other fittings that are leaking.
##To open the top first remove the steam knob by pulling it off. The machine will look like this once the knob is removed:
##Next you will need to remove the screw hole cover on the top of the machine. There is a small slit in the back of the cover where you can insert a flathead screwdriver and pry the cover out. [[File:GAGGIA EVOLUTION Screw Cover.jpg|200px|thumbnail|right|Screw Hole Cover]]
##Once the cover is removed you will be able to access the screw that holds the top cover on. It is located in a hole on the top of the machine. [[File:GAGGIA EVOLUTION Screw Cover Removed.jpg|200px|thumbnail|right|The screw is located inside the hole circled in red.]]
##Once the screw is removed the top will simply lift straight up and off.
##If you find a loose hose reconnect it to the appropriate fitting.
##Hoses that are broken or have pinhole leaks will need to be replaced.
##Other loose fittings can typically be resecured by screwing the part down. Plumbers tape or a sealing compound may be necessary to provide a good seal.
#Check the pump connections to make they are secure.
##Examine the pump to see if there are any cracks in it. If the machine was exposed to subfreezing conditions without being properly drained it can cause the pump to crack. Replace the pump if it is cracked.
##Make sure both the inlet line and the outlet line on the pump are securely connected. Check the brass elbow connection on the pressure side of the pump. If there is leaking coming from this elbow joint then it will need to be resecured. Apply a foodsafe sealing compound to the threading of the elbow and screw it back into the pump. Let the compound cure for 24 hours and the leak should be gone.
#Examine the boiler assembly. 
##If there is leaking coming from between the boiler and the grouphead there are two possible causes.
###If there is leaking all around the edge where these assemblies meet they are not sealing properly.
####First try tightening the eight allen screws that secure the boiler and grouphead together. There are four allen screws at the bottom of the boiler assembly inside the machine, and the other four bolts are located externally beneath the head of the machine.
####If it continues to leak then the o-ring that seals these two assemblies has slipped out of place or is worn out and needs to be replaced. Try unscrewing the boiler and the grouphead by removing the eight allen screws mentioned in the previous steps. Clean the o-ring off and reseat it and screw the boiler assembly back into place.
####If this does not resolve the leak then the o-ring is worn out and needs to be replaced. Replacement o-rings can be purchased [https://www.wholelattelove.com/products/o-ring-167-epdm-70-sh here].
###If the leaking is mainly coming from the side of the boiler that faces the front of the machine then the boiler is probably cracked. This will happen if the machine is exposed to subfreezing temperatures without being drain properly, or the machine is dropped. The boiler will need to be replaced.
##If you find a crack anywhere else on the boiler then the machine was exposed to subfreezing temperatures without being drained properly or the machine was dropped. The boiler will need to be replaced.

====From Bottom Of Machine====

#Check the water tank and drip tray to make sure that are no cracks or breaks where water can escape. Make sure they are properly positioned on the machine.
#Ensure that the return line is sitting inside the water tank. If the tube is outside of the tank, or pushed up into the machine it will cause a leak. Position it so that it is sitting inside the water tank.

====From Steam Wand====

#If the wand is leaking from the end of the wand it means the steam valve is not fully closed.
##Try tightening the knob down firmly. Pressure from the boiler will leak through the wand if the steam valve is not securely closed.
##If it feels like the knob is spinning in place then the knob may be broken. Try removing the knob and manually turning the steam valve closed. An adjustable wrench or a pair of pliers can help with this. If this stops the leak then the steam knob will need to be replaced.
##Descale the machine according to the instructions in the [[#Cleaning & Maintenance|Cleaning & Maintenance]] section of this article. Scale buildup inside of the steam valve will prevent the valve from closing fully and can cause permanent damage to the valve. After the machine has been descaled run 4-6 tanks of water through the wand using the machine's hot water function to ensure any debris or scale in the valve is fully removed.
##If the leaking persists then the steam valve will need to be replaced.
#If the wand is leaking from where it connects to the machine then the wand is not sealing properly to the steam valve assembly.
##Make sure the wand is securely screwed in. At the top of the wand is a hex shaped stainless steel threaded fitting which screws into a corresponding brass fitting that is part of the steam valve assembly. Use an open ended wrench or adjustable wrench to make sure these two parts are firmly screwed together.
##If tightening the wand onto the steam valve assembly does not resolve the leaking issue then the o-ring that goes between these parts may be dirty, damaged, or out of place. Unscrew the assemblies and inspect the o-ring. Clean the o-ring off, reseat it around the threaded end of the wand, and screw the wand back into the machine. If the leaking persists this o-ring will need to be replaced.

===Machine Not Heating Or Powering On===

{{Troubleshooting-Gaggia-Semi-No-Power}}

{{Troubleshooting-Gaggia-Semi-Brew-Cold}}

{{Troubleshooting-Gaggia-Semi-Steam-Cold}}

{{Troubleshooting-Gaggia-Semi-On-No-Heat}}
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===Pannarello Nozzle Not Staying Attached===

If the pannarello nozzle attachment is not staying on the machine, or it keeps blowing off during steaming, then it is either not attached properly or is plugged with milk residues and needs to be cleaned. Please refer to the cleaning and attachment instructions covered in the [[#Difficulty Frothing|frothing issues]] section of this article.
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===Portafilter Handle Not Fitting On Machine===

{{Troubleshooting-Gaggia-Semi-Portafilter}}
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===Machine Is Making Loud Noises===

#If the noises are occurring specifically during steaming, and it sounds like a loud pinging, then the sleeve insert on the pannarello assembly is not in [https://wiki.wholelattelove.com/images/6/68/ALL_MODELS_Pannarello_No_Froth_Fix.pdf  the proper position.]
#If there is a knocking or metallic banging sound while the pump is activated then the pump is probably off of its mounting. Open the top of the machine and resecure the pump to its mounting.
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===Too Much Steam/Milk Boiling===

{{Troubleshooting-Super-Steam-Too-Hot
|steam_test_instr = [https://wiki.wholelattelove.com/images/c/ca/ALL_MODELS_Steam_Test.pdf  Follow these instructions to perform a steam test.] 
}}
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===Replacing the Portafilter Handle===
If you need to replace your portafilter handle, instructions can be found [https://wiki.wholelattelove.com/File:ALL_MODELS_Replacing_Portafilter_Handle.pdf here]