Storz 26 4320 20, Service Manual, Page: 38 / 110

3-18
03.14 / V1.7
THERMOFLATOR
®
MODEL 26 4320 20
MODEL 26 4320 20-1
3.5 Troubleshooting
2
CAUTION:
Always unplug the device from the power supply before carrying out any work on it!
Symptom Possible cause Remedy
Complete failure of the device. No power from the power line. Check power line.
Line fuses faulty. Replace fuses as described in
the instruction manual, make
sure to use the correct type of
fuse.
Power supply plug is not prop-
erly connected to the socket on
the device.
Push power supply plug firmly
into the socket on the device.
Defective power cord. Change power cord.
No gas flow. Bottle empty or not fully open. Open gas bottle fully (check gas
supply on gas reserve indicator).
Insufflation not switched on. Switch on insufflation.
Solenoid valve faulty. Replace solenoid valve.
Pressure manifold faulty or dirty. Replace or clean pressure mani-
fold.
Pressure does not build up. Leak in tube system. Check tube system, especially
the connections and, if neces-
sary, replace.
Control circuitry faulty. Check and, if necessary, repair
low-pressure stage. Check and,
if necessary, replace control
components on the control
board.
Read heating element indicator
is lit. Acoustic warning signal
sounds.
Failure in electronics. Defective
gas preheater.
Change controller board. Adjust
temperature with reference tem-
perature sensor.
Failure in heating element. Change heating element.
Device signs sporadically off or
on to SCB.
Utility line faulty.
Replace utility line,
see chapter 7.4.