AERMEC EXTK PRO - Page 20

SPL User Manual Page 20 of 24 0412-6180864-rev.00
Error description
Action
Problem description
Troubleshooting
Reset
type
INTAKE TEMP.
System block
Room air temperature probe error
(ambient air intake)
Check wiring or replace
component
Automatic
DELIVERY TEMP.
Disable delivery limit
function
Delivery temperature probe error
Check wiring or replace
component
Automatic
EXTERNAL TEMP.
Disable economizer
(freecooling,
freeheating)
External temperature probe error
Check wiring or replace
component
Automatic
ANTI-FREEZE
Disables anti-freeze
function
Water coil anti-freeze temperature
probe error
Check wiring or replace
component
Automatic
DIFF. PRESS. DEL. FAN
System block
>Delivery fan differential pressure
switch probe error
Check wiring or replace
component
Automatic
HUMIDITY LIMIT
Disables humidifier
delivery limit
Delivery humidity probe error
Check wiring or replace
component
Automatic
EXTERNAL HUMIDITY
Disables enthalpy
economizer
(freecooling,
freeheating)
External humidity probe error
Check wiring or replace
component
Automatic
AMBIENT HUMIDITY
Disables enthalpy
economizer
(freecooling,
freeheating)
Dehumidification,
humidification
Ambient humidity probe error
(ambient air intake)
Check wiring or replace
component
Automatic
AIR QUALITY
Disables air quality
function
Air quality probe error
Check wiring or replace
component
Automatic
CIRCUIT # HIGH
PRESSURE
Circuit block
Circuit maximum probe error (high
pressure transducer)
Check wiring or replace
component
Automatic
CIRCUIT # LOW
PRESSURE
Circuit block
Circuit minimum probe error (low
pressure transducer)
Check wiring or replace
component
Automatic
N.B.: “#” indicates the number of the circuit, the compressor, the thermal switch, etc..