If you are having trouble with your steaming one of the first things you want to do is determine whether the steam stat itself is working or not.  Here's how:

Measure 10 ounces of room temperature water into your frothing pitcher and  insert your thermometer. Remove any frothing assist devices as you will need to use the bare wand.
Click on the steam switch and wait for the red "ready light" to come on.

Start steaming by opening up the steam knob. You will notice the red light will go off after a short time indicating that the boiler heating elements are on and are actively heating the water. Keep steaming until the temperature light comes back on.

Record the temperature. If it is not at least 140F (60C), your steam thermostat is running too cool and should be replaced.

The steam thermostat is very easy to replace and if you can wield a screwdriver, you can replace it yourself in a couple of minutes [keeping the usual precautions about working on electrical equipment in mind].

Always remember to hand tighten only; never use a wrench to tighten a thermostat on your Gaggia.

If you do need a new steam stat, consider sourcing a 155C or 165C model instead of the OEM 145C one;  it will give you a bit more steam power without compromising on safety.


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