ES AWH11-V5+, User Manual

Page: 62 / 86

3. Usage
62
01(02) Fc
01(02) E1
Uni t worki ng stat ue Failure Code Type
System condensing pressure
too high Comprssor stops
Communication between
opeartion panel and indoor
PCB or outdoor PCB failure
Comprssor stops
Communication failure between operation panel and the
indoor or outdoor PCB. Check the cable connection in
between. Check whether the last three switches on
outdoor power PCB are set to 001; whether last three
switches on indoor PCB are set to 001.Check if indoor
or outdoor PCB is broken. Indoor PCB is master, wired
controller and outdoor PCB are slaver. Unit recovers
when communication recovers.
Possible Reasons And Solutions
If system too high pressure protection, 01(02)P6,
detected by condensing pressure sensor happened
3 times in a certain period of time, it gives this failure
code and unit can't be restarted until repowered.
Check whether water flow rate is not enough (more
likely it is not enough water flow rate that caused
system build up too high pressure); whether fan
motor and water pump is working OK; whether
condensor is blocked; whether EEV works normally;
whether water temperature too high, and whether
water inlet&outlet temperature has too big difference
(should no bigger than 8
℃
)
Failure
01(02) F9
01(02) Fa
01(02) Fb
01(02) F8
Comprssor stops
DC fan failure (FAN2)
DC fan failure (FAN1)
If system evaporating pressure too high protection,
01(02) PE detected by evaporating pressure sensor,
happened 3 times in a certain period of time, or
evaporating sensor is not well connected or failed to
work, it gives this failure code and unit can't be
restarted until repowered. Check whether system has
not enough refrigerant or leakage inside(more likely it
is not enough refrigerant that caused this abnormal
evaporating pressure); whether fan motor and water
pump is working OK; whether condensor is blocked;
whether EEV whether EEV works normally; whether
water temperature too high in heating/hot water mode,
and whether water inlet&outlet temperature has too big
difference in cooling(should no bigger than 8
℃
).
Water flow switch failure
Comprssor stops
Preserved for monoblock unit only. Please check
the statue of water flow switch.
Comprssor speed down
(dual fan system) or
stops (single fan system).
When both FAN 1 and
FAN2 failed to work in
dual fan system,
compressor stops.
System evaporating pressure
too low/system evaporating
pressure sensor failure
Speed of DC fan (FAN 2) can't reach the required
value or no feedback signal. Please check whether the
PCB or fan motor is broken. Or Check if fan motor
connect to a wrong port in PCB. Check whether the fan
motor is AC fan motor instead of DC fan motor, if so,
unit has a wrong Eeprom setting. Check whether the
system is a single fan system, but gives this failure
code and compressor works in a limited speed, if so,
unit has a wrong Eeprom setting.
Comprssor speed down
(dual fan system).When
both FAN 1 and FAN2
failed to work in dual
fan system, compressor
stops.
Speed of DC fan (FAN1) can't reach the required
value or no feedback signal. Please check whether
the PCB or fan motor is broken. Or Check if fan
motor connect to a wrong port in PCB. Check
whether the fan motor is AC fan motor instead of DC
fan motor, if so, unit has a wrong Eeprom setting.
If the system is a single fan system, but gives this
failure code and compressor works in a limited
speed, if so, unit has a wrong Eeprom setting.
System
failure
Outdoor Unit Failure Codes.