95
ENGLISH
Measure to take when E505, E506 error occurs
End
Yes
Yes
Eable vacuum mode on all outdoor units
Disable vacuum mode on all outdoor units
No .
Is the service valve of the outdoor unit
opened?
Open the service valve of the outdoor unit
No .
Is the value on the pressure sensor of
the installed outdoor unit satisfy the
following?
"Max ./Min . value difference of low
pressure > 2"
"Max ./Min . value difference of high
pressure > 2"
Reset outdoor unit
Run trial operation
Analyze cycle data
Check/replace the abnormal pressure sensor
• When the auto trial operation for pressure sensor was executed before the pressure of the outdoor unit is
eqaulized (when there's close to no difference between high and low pressure), error may occur even though
the product is normal .
• If the pressure sensor need to be detected, all outdoor units will display the error .
• If the pressure sensor need to be detected, auto trial operation mode will end .
• To check for the pressure sensor with the problem, run trial operation for more than 1 hour and analyze the data
to check for a problem .
CAUTION