Yamaha NAVIGO - Page 119

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Problem LCD Indication Buzzer Check Point What to Do
Shortage of power
Beeps (Pi —)
repeatedly
Is there a large load being applied?
It will stop beeping once the load is re-
duced.
Beeps (Pi) re-
peatedly
Is there a large load being applied, causing
the motor to overheat?
Lighten the load so that the motor will not
overheat.
Is the ambient temperature low?
Is the battery stored in a place where the
temperature becomes hot, such as inside a
car?
The battery power decreases when the
battery temperature is 23°F or lower or
140°F (–5°C or lower or 60°C) or higher.
Wait until the battery reaches an appropri-
ate temperature.
Has the battery deteriorated?
Replace with a new battery. For a nickel
metal hydride battery, try refresh charging.
Beeps (Pi Pi Pi
Pi) (4 times)
Is the battery residual capacity su󰀩cient?
Promptly move to a safe place, turn o󰀨
power and charge the battery, or replace
with a spare battery (sold separately).
Buzzer sounds
continuously
Beeps (Pi Pi — Pi
Pi —) repeatedly
Is the anti-tip device retracted? Extend the anti-tip device.
Short travel range,
or insu󰀩cient
speed
Is the battery su󰀩ciently charged?
Replace with a new battery. For a nickel
metal hydride battery, try refresh charging.
Is the ambient temperature low?
The battery power decreases when the
temperature drops.
Is the wheelchair carrying heavy loads or
driving uphill?
Heavy loads tend to shorten the travel
range.
Is the speed parameter set to the standard
setting?
Contact your dealer.
Is the speed setting set to a low speed set-
ting?
Adjust it to a higher speed setting.
Sluggish manual
travel
Is the air pressure of the tires too low? Inate the tires.
Are the brakes engaged on the wheelchair? Release the brakes.
Assistant brakes
do not work
Does the brake lever have too much play? Contact your dealer.
Assistant brakes
pull to one side
Are both brakes adjusted evenly? Contact your dealer.
Brakes squeal
Are the brake drums damaged or are the
brake shoes worn out?
Contact your dealer.
Have the brakes been applied for a long
time?
The brakes can make a noise depending
on how they are applied, but this is not
abnormal.
Abnormal vibration
or noise
Is the area where the axle is mounted loose? Tighten it or contact your dealer.
Is there noise coming from the drive unit? Contact your dealer.
Is the wheelchair frame or front casters
wobbling?
Contact your dealer.