28
QTech
Spray.com
LCD screen error codes
Error
Code
Cause
Effect
How to return to
operation
Solution
E03
Excess voltage
from the
engine
’
s
charging system
to the pressure
control system
Clutch will
disengage
and pressure
control system
will shut off
When voltage
is normal, will
automatically
return to
operation
Check the
engine
’
s
charging
system
E05
Pressure sensing
abnormality or
no signal from
sensor
Clutch will
disengage
When
pressure signal
is normal, will
automatically
return to
operation
Check pressure
transducer and
check for bad
connections
with transducer,
LCD or PC
board
E07
Engine was
started with he
pressure control
switch in the
ON position
Clutch will not
engage
Switch the
pressure control
OFF and then
ON again to
reset
No further
action required
E08
Paint has
run out
Clutch will
disengage
Refill the paint,
then switch the
pressure control
OFF and then
back ON again
to reset
No further
action required
E09
Maximum
pressure
exceeded
Clutch will
disengage
When
pressure signal
is normal, will
automatically
return to
No further
action required
29
QTech
QT830 Airless Sprayer
Wiring
