Dometic Passport I/O Legacy User Manual

21
EN
Passport I/O Digital Controls Operation
Fault and Status Codes
Code Description DX CW
ASF
Indicates an air sensor failure.
x x
FIL
Indicates that the air filter replacement
timer has expired.
x x
HPF
High Pressure Fault: indicates high
refrigerant pressure. This fault is not
applicable in HEAT mode.
x
LAC
Low AC Fault: indicates low AC voltage.
This fault offers extra protection for the
compressor and components within the
system during low-voltage (brownout)
conditions:
• Aer the compressor starts, the
low voltage monitor checks the
AC input voltage. If voltage drops
below the specified setting
(100–120VAC/208–240 VAC) and
remains below for five minutes, the
system shuts down and the low AC
voltage fault displays.
• The fault continues until the AC
input voltage rises above 100–
120VAC/208–240 VAC. Then, the
LAC fault code clears automatically
and the cooling or heating cycle
commences.
x
LPF
Low Pressure Fault: indicates low
refrigerant pressure. This fault has a ten-
minute shutdown delay.
x
PLF
Low Pump Flow Fault: indicates a high-
water temperature in the condensing
coil or low pump flow.
x
Fail Safe Levels
Lvl Description DX Only
0
Fail Safe Level 0: Provides minimal failsafe
protection and is not recommended.
• Only the ASF fault is detected and
displayed.
• The Passport control shuts down and
will not restart until the fault is repaired.
x
1
Fail Safe Level 1: includes the failsafe
actions of the previous level and detects
all other faults, but they are not displayed.
• The system shuts down for two
minutes or until the fault is cleared,
whichever is longer.
• The system restarts when the fault is
cleared.
x
2
Fail Safe Level 2: includes the failsafe
actions of the previous levels and displays
all other faults.
• The system shuts down for two
minutes or until the fault is cleared,
whichever is longer.
• The system restarts when the fault is
cleared.
x
3
Fail Safe Level 3: includes the failsafe
actions of the previous levels and the
system will lockout aer four consecutive
HPF or LPF faults. In addition, the lockout
can be cleared.
• The system shuts down for two
minutes or until the fault is cleared,
whichever is longer.
• To clear the lockout, enter OFF mode.
Then, return to ON mode.
x

Dometic Passport I/O Legacy Specifications

General

Brand	Dometic
Model	Passport I/O Legacy
Category	Marine Equipment
Language	English