GE Giraffe OmniBed Carestation CS1 Service Manual

Chapter 5: Troubleshooting
Additional Troubleshooting Tips
Service Manual 5-9
5.2 Additional Troubleshooting Tips
Following are tips on taking many of the measurements and diagnosing the failures that are referred to in
the troubleshooting charts. The board revision code is located in a triangle printed on the component side of
the PCB. Refer to relay board Figure 8-41.
5.2.1 Raising and Lowering the Canopy or Elevating Base
In the event of an system failure, it may be possible to raise or lower the canopy or the elevating base in the
Service Mode. Access the Service screen. The pedals are now activated to assist in troubleshooting or
transport.
5.2.2 Incubator Heaters and Bed Safety Thermostat
There are two 115 volt incubator heaters rated at 225 watts at 104 volts, which are mounted at opposite
ends of the incubator heat sink. They are always connected in parallel and are powered by isolated 115
volts from the heater isolation transformer. This voltage is switched by the incubator SSR.
The resistance of each heater is about 48 ohms and they are in parallel so you should measure about 24
ohms. Note that the bed safety thermostat is in series with the heaters so if the reading is open circuit you
must take readings at the connectors under the bed to determine which is defective.
To measure the incubator heater resistance, disconnect the black wire on the incubator SSR and the
connector from J54 on the relay board. Measure between harness connector pin 4, and the black wire.
The incubator heater and bed safety thermostat resistance can also be measured by the removing the
bottom cover and measuring directly at the components.
S37 Bed will not lock in tilt position. Tilt ball not engaged in
finger pocket latch
Tilt the control panel end of the
bed platform all the way down
while holding the latch open,
then let the latch close to
capture the tilt ball. Make sure
the ball is clear of debris.
Tilt brake pad failure Replace the tilt brake.
S38 Patient Cold or patient Hot
Alarm does not trigger at 0.5ºC
or 1.0ºC in Air Mode.
Manual Temp. Alarm is
disabled on Service screen.
Enable Manual Temp. alarm.
S39 Humidifier reservoir is crazed
(has hairline cracks).
Sterilization Replace humidifier reservoir.
S40 Humidifier reservoir has
scaling.
Use of tap water Replace humidifier reservoir.
ID Symptom Possible Cause(s) Action(s)

GE Giraffe OmniBed Carestation CS1 Specifications

General

Brand	GE
Model	Giraffe OmniBed Carestation CS1
Category	Medical Equipment
Language	English