That is the right milk. Use a thermometer with the milk.
The middle button is used for steam. It engages the high themostat for steam.
Slightly open the steam valve
Turn on the middle button
Keep the end of the steam wand slightly above the milk surface (0.5 mm) so the steam incorporates air into the milk. (Takes practice)
Open the steam valve as the boiler heats up. (Takes practice)
When the milk get to 74 C (165 F) immerse the steam wand into the milk and heat to 82 C (185 F)
Turn off the middle button and shut the valve.
For 90 ml of coffee, use 14 gram of ground coffee. The coffee scoop that came with the machine holds 7 grams of ground coffee as it comes out of a grinder (not packed). Tamp the coffee after it is in the sieve.
Dissolve about one tablespoon of citric acid in the water reservoir.
Fill the boiler completely. Open the steam valve and start a hot water cycle until water comes out the steam vent. Stop the hot water cycle, close the vent.
Let the boiler heat up about 5 minutes. Then turn off the power.
Let the acid solution work for about 1/2 hour.
Pull a 30 second shot to change the water in the boiler.
Repeat flushing cycles (steps 3, 4, & 5) until the water looks clear. Refill the reservoir with water and acid as needed.
Wash out the water reservoir.
Pull 5 or shots to get the acidic water out of the boiler. Run a hot water cycle to clean the acidic water out of the steam vent.
Let the unit come to temperature and look for leaks.
Hi Sorry but that is the way it is with the good machines. If it is left on 24/7 it needs to be changed every 6 months. They get hard because of the heat. Buy a couple and keep 1 on hand.
This may be a case of too many items drawing power on the one circuit. Check what other things are running at the same time ( even on standby) You can also use another plug isolated from that particular circuit to ensure its is not the unit tripping because of some problem. An electrician should be able to add another circuit to relieve the load from the power box. We sometimes keep adding things without thinking that the limit can be reached easily woithy many new items running in standby all drawing current.
Once you get the top off, there are 2 thermostats on the top of the boiler. Your looking for the thermostat that is on the front of the boiler with the red button . Push the red button. If that didn't work check the ohms reading on the element. It should read 12 - 16 ohms. If it doesn't replace the element. Also did you try to turn on the steam button? Sometimes the thermostat with the red dot on it goes bad. If it will steam just replace the brew thermostat.
you should take out the knob first, than you try to disasembke the SHAFT of valve from the valve body, in this types(small espresso coffe machines) usualy producer use conical valve, without seals she close metal to metal, when you get out the SHAFT you will see one line on the conical end. for repairing it will be enough to visit one metal vorkery where they will take a small amount of brass from end and polish it. then you put it back and work again with your machine.
ps: notice you only polish the SHAFT , dont let them to short the more than 0.5 mm
Often these temperature differences are solved by descaling. Do never use vinegar. One can buy citric acid crystals or powder (not the same as lemon juice) and dissolve that chemical in water. I buy it in the Chinese Mall. Do not make a too strong acid. Shops sell maintenance powder which is the same but that is quite expensive. Let the acidic water go in and through the coffee maker until it looks clear. Next rinse with water for quite a number of runs. You may see how strong the citric acid that you make is by descaling something else and wait for about an hour. Another acid to be used in coffee makers is lactic acid. Lactic acid is bought as a cleaning agent. Also very strong and to be diluted with water.
It is most likely that something is blocking the pathway to the grinder. As the Rocky is a direct drive grinder there is no gear that could be broken.
Try to remove the beans from the hopper and inspect the pathway, move the beans that might be under the 'disk'. If that is not working you might have to open the grinder;
remove all coffee beans
unscrew the three screws in the bottom of the hopper
remove the hopper
Now you can see the grinder wheel and tell if it is turning normally.
This might be a good opportunity to give the grinder a thorough cleaning.
Do not soak it in water, just a stiff small brush (e.g. a toothbrush) is the best tool. And perhaps accompanied by a vacuum cleaner :)
If you have been using very 'oily' beans for a long time they might have clogged the grinding wheels.
Good luck,
Villi
