P/N UM522KL_522KG Rev20190412
14
TROUBLESHOOTING
Troubleshooting
Before contacting service personnel, refer to the following instructions to check and to
correct any failures.
Symptom
Possible Cause
Corrective Action
Scale does not turn on
1. Dead battery
2. Faulty electrical outlet
3. Bad power supply
1. Replace batteries
2. Use a different outlet
3. Replace AC adapter
Questionable weight or
the scale does not zero
1. External object
interfering with the scale
1. Remove interfering object
from the scale
2. The display did not
show
“0:0.0” before
weighing
2. Remove the patient from
the weighing tray, zero the
scale and begin weighing
process again
3. Scale is not placed on a
level surface
3. Place the scale on a level
surface and begin weighing
process again
4. Scale is out of
calibration
4. Check weight with known
weight value
Weighing is performed
but the weighing process
takes too long and the
weight does not lock on
the display
The patient is not laying
still
Try to have the patient lay
still
The display shows “Over”
message
The load on the scale
exceeds the capacity
(50 lb / 23 kg)
Remove the excess weight
and use the scale according
to its limits
The display shows
“Lo” message
The batteries are depleted
Replace batteries according
to instructions
Scale turns on but will not
register a weight reading
Load cell connector cable
is not plugged in
Refer to the instructions
below to inspect the load cell
cable.
Inspecting the Load Cell Cable
Load Cell Cable
Connected
Load Cell Cable
Not Connected
1. Using a Phillips screwdriver, remove
the door at the back of the platform
base.
2. Inspect the load cell connector cable to ensure
it is completely plugged into the RJ jack. If cable
was plugged in, unplug and plug in again until it
clicks into place. After checking connection,
replace door at the back of the platform base.
