Troubleshooting
Use this list of common symptoms to diagnose and resolve issues you experience
with your espresso machine. Slayer’s instructional videos are password-protected;
access them with the code “prebrewpressure”.
Brew tank cold; pre-heat
and steam tanks normal
Tripped thermostat or faulty
probes and/or PIDs
Brew and pre-heat tanks
cold; steam tank normal
Tripped breaker and/or white
power switch off
High pressure during pre-
brew
Hissing from machine’s
rear-left
Leaking pressure release
valve
Steam pressure low; brew
pressure normal
Steam pressure low and/
or slow refill
Fast flow during pre-brew
Faulty switch and/or bad
connection to Molex connector
and/or missing magnet
Loose switch and/or brew
actuator not in “off” position
Faulty solenoid valve and/or
dirty probe and/or bad
connection to probe
Worn o-rings at valve insert
and/or lower valve stem
Worn steam cup seal and/or
o-rings
Leaking group cap and/or
bayonet
Worn o-rings at upper valve
stem