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Troubleshooting
You may meet some common issues listed below. We recommend you do a
self-check first, but if the problem is not resolved, please contact customer
support at support@tosotdirect.com.
Whether the unit is
connected to the power
supply correctly?
Whether the rooftop
air conditioner is level?
Whether the set
temperature is proper?
Whether the air filter
is too dirty?
Has the unit just been
turned on or off?
Has the unit just been
turned on or off?
Has the chassis
gasket been evenly
compressed and
tightened?
Check the power supply of the
vehicle and make sure it is
provided correctly.
Mount the rooftop air conditioner
as level as possible from front to
rear and side to side when the
vehicle is parked. Make sure
that the mounting of the air
conditioner is correct and level.
Adjust the temperature.
Clean the air filter.
Allow a sufficient amount of time
for the unit to cool/heat the room.
The flowing water sound is the
refrigerant inside the air
conditioner, which is completely
normal.
Mounting bolts should be
tightened evenly by compressing
the chassis gasket.
Air conditioner
can't operate
Poor cooling
(or heating)
There's an
abnormal sound
during operation,
such as clicking
or gurgling
There’s water
dripping inside
the unit
Issues Self check Possible solutions
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