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M
Ingenieurbüro CAT, M. Zipperer GmbH +49-7634-5056-800
Wettelbrunner Straße 6
48
79282 Ballrechten-Dottingen
www.jetcat.de
GERMANY
Instruction manual JetCat-PRO engines, 1.7 - V12.01V
Troubleshooting
Most frequent errors. Cause and remedy:
Problem
Cause
Remedy
Turbine doesn't ignite
Fuel supply lines are empty or not purged
ECU battery weak or empty
The kero start igniter failed. The
automatic glow plug test may not detect
a failed igniter!
Purge fuel system. Use the Test Functions
Menu, Purge Pump
Charge ECU battery
This is an extremely rare event but the
engine must be returned to
JetCat
. It may
be possible on some engine types to use
a temporary external plug. Call
JetCat
for
information.
Starting process fails
Turbine is still too warm;
Cool Down not yet completed.
Low battery or faulty connection.
Glow plug defective (red
Pump
running
LED blinks).
Three-conductor cable for starter motor
and glow plug disconnected.
Wait until
SlowDown
sequence is
finished. The green OK LED will stop
blinking.
Charge battery. Check ECU’s battery
connection.
Replace defective glow plug.
Check cable. Check for proper
connection from ECU to the engine.
ECU doesn't follow full
commands from the
throttle stick
Programming alteration in R/C
transmitter
Check alignment with RC-Check menu.
Re-align ECU to the R/C system.
Turbine ignites, but the
start process is
discontinued.
Air in fuel feed lines.
Fuel pump not running.
Air leaks in fuel system. Examine all Festo
fittings, nipples, clunk, filter, etc.
Check for fuel filter clogs.
Test the pump in Test Functions menu,
(as soon as the red
Pump running
LED
illuminates, the fuel pump must run!).
Starter unit slips, makes
noise.
Dust and oil sediment on the compressor
nut and O-ring.
Clean O-ring and compressor nut
periodically, with cotton swab and
solvent.
EGT giving erratic
temperature or RPM
readings.
Transmitter antenna too close to the
model.
Keep the antenna away from the model.
It may cause false readings.
Turbine quits with
Watchdog Failure
Static discharge reset the ECU.
Do not mount ECU directly to the
fiberglass body of the plane. Use a
plywood mount with a layer of foam tape
and Velcro between the body and the
ECU. If the plane has a glossy finish and
the failure happened directly after the