Cool Energy EcoStore Heat Pump Water Heater
25 |
P a g e
E8
Electric leakage error
If PCB current_induction_circuit check
the current difference between L,N
14mA, system consider it as "electric
leakage error"
Maybe some wires have been broken or
bad wire connection.
Contact a qualified person to service the
unit.
E9
Compressor suction temperature
sensor TH error
Maybe the connection between sensor
and PCB has released or sensor has been
broken.
Contact a qualified person to service the
unit.
EE
E-heater open-circuit error( IEH) Current
difference E-heater on & e-heater off
<1A)
Maybe the E-heater has been broken or
bad wire connection after repair.
EF
Clock chip error
Maybe the chip has been broken, but
unit can work well without clock-
memory, so it is needed to reset clock
when power put on again.
If necessary, contact a qualified person to
service the unit.
Ed
E-EPROM chip error
Contact a qualified person to service the
unit.
P1
System high pressure protection:
•
≥2.76 MPa, active;
•
≤2.07 MPa, inactive.
Maybe because of system blocked, air or
water or more refrigerant in system(after
repair), water temperature sensor
malfunction, ect.
Contact a qualified person to service the
unit.
P2
High discharge temperature protection
•
Tp > 115 °C, protection active;
•
Tp < 90 °C, protection inactive.
Maybe because of system blocked, air or
water or less refrigerant(leakage) in
system( after repair), water temperature
sensor malfunction, ect.
Contact a qualified person to service the
unit.
P3
Compressor abnormally stopped
protection.
The discharge temperature is not so
higher than evaporator temperature
after compressor running a term.
Maybe because of compressor broken or
bad connection between PCB and
compressor.
Contact a qualified person to service the
unit.
P4
Compressor overloaded protection (10
sec. after compressor startup, Current
checking starts:
•
an only compressor running, if it is
>10A, the compressor will be
stopped and protected.
•
Come-heater opened, if it is
>IEH+10,the compressor will be
stopped and protected.)
Maybe because of compressor broken,
system blocked, air or water or more
refrigerant in system (after repair), water
temperature sensor malfunction, etc.
