Troubleshooting - Professional Series PS-PR288 User Manual

Indicator code
S/N Symptom
1 Lid does not
lock
2 Cannot open the
lid after air
exhaust
3 Air escapes
from the rim of
the lid
4 Air escapes
from the float
valve
5 The float will not
rise

Troubleshooting

E1
E3
E4
E5
Possible Reasons
The sealing ring is not properly
installed
The float is seized by the push
rod
The float is still up
Sealing ring was not installed
Food residue on sealing ring
Sealing ring worn out
Lid not locked properly
Food stuck on the sealing ring
of the float valve
The sealing ring on the float
valve worn out
Not enough food and water
Air escaping from the rim of the
lid and the pressure limit valve
Reasons
Pressure switch malfunction
Short circuit of sensor
Sensor circuit open
Overheating
Reinstall the
sealing ring
Push the rod with
your hands
Press the float
down
Install the sealing
ring
Clean the sealing
ring
Replace the
sealing ring
Rotate the lid fully
Clean the sealing
ring
Replace the
sealing ring
Check recipe for
proper quantity
Call the Consumer
Service Center
Solutions