Hobart AM900 Installation And Operation Instructions Manual page 18

tRouBlEshootinG GuidE
dE
GB
typE oF FAiluRE
F
poor wash result
Stripes and staines on
nl
dishes or glasses.
other malfunctions
Glasses are totally or
partially cloudy
Glass breakages.
Machine suddenly stops
during wash program.
If no button will be pressed during 6 hours, the machine switches off automatically without draining.
18
possiBlE cAusE
Rinse aid concentration too high.
Hard water or high mineral content.
Rack is not suitable for type of dishes
(sloping).
Insufficient rinse aid concentration
causes staines
Machine with softener:
Wrong type of salt used.
Surface of glasses is rough and
porous, this is called glass corrosion
Use of inappropriate dish or glass racks.
Machine is connected to a "maximum
power supply unit" which cuts out the
energy consumer at a given point, or ma-
chine is interlocked with another energy
consumer unit.
Blown site fuse.
REMEdy
Reduce quantity (see instructions).
Check water quality.
Obtain details from local water authority.
Recommended values:
Ideal degree of hardness is 4° Clark.
Ideal conductivity value for glasses is
max. 150 µS/cm and for dishes max. 400 µS/cm.
Use appropriate racks to create a sloping position
which allows water to drain away from cavities.
Increase quantity (see instructions)
Use only granular regeneration salt.
This is not caused by a malfunction on the
machine. Replace with new glasses.
Use appropriate racks.
Connect machine separately (call electrician).
Check site fuses.
AG-1590-A-09-08