Group gasket: sizes, identification and replacement
How to identify, measure and replace an espresso machine group gasket: common sizes by group type, signs of wear and replacement intervals.
Updated:
Technical guides
Technical guides on espresso machine parts: how to identify, measure, adjust and replace them.
Shower screen and backflushing: how to clean the group
How to backflush an espresso machine with a blind basket and clean or replace the group shower screen: doses, cycles and intervals from the manuals.
Updated:
Portafilter baskets: single, double, blind and diameters
How to choose a portafilter filter basket: single and double doses, basket height, rim and tamper diameters by brand, blind baskets and replacement.
Updated:
E61 group: wear parts and maintenance
Which parts wear on an E61 brew group, the symptom each one causes and the routine upkeep: cleaning, lubrication, gasket and shower screen.
Updated:
Rotary vs vibratory pump: differences, faults, replacement
How to tell a rotary vane pump from a vibratory pump, which symptoms point to a failing pump and what to check before replacing it on an espresso machine.
Updated:
How to set espresso pump pressure to 9 bar
Where to read and how to adjust pump pressure on an espresso machine: the by-pass screw, manufacturer values and the mistakes to avoid.
Updated:
Boiler pressostat: what it is, adjustment and faults
What the pressostat does on an espresso machine, typical boiler pressures, how it is adjusted safely and the faults technicians see most often.
Updated:
Boiler heating element: multimeter test and selection
How to test a boiler heating element with a multimeter, which ohm values to expect, the symptoms of failure and how to choose the replacement.
Updated:
2-Way and 3-Way Solenoid Valves: Symptoms and Coil
How 2-way and 3-way solenoid valves work in an espresso machine, the fault symptoms, how to check the coil and what to match when replacing one.
Updated:
Anti-Vacuum Valve and Boiler Safety Valve Explained
What the anti-vacuum valve and the boiler safety valve do, the signs of failure, set pressures by model, and why they must never be altered.
Updated:
Water Hardness, Softeners and Descaling Explained
How to measure water hardness, the values machine makers ask for, when to regenerate a softener, and why boiler descaling is a job for a technician.
Updated:
How to Identify the Right Part and Request a Quote
What to have ready before asking for a spare part: brand, model and rating plate, measurements, photos and the ET reference. Then how to request a quote.
Updated:
All brand names are registered trademarks of their respective owners and are used solely to indicate part compatibility. ESPRESSOTECHNIC is not an authorised representative of these brands unless expressly stated otherwise.