Midea RSJ-35/300RDN3-B, Техническое руководство

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2
nd
Generation ALL IN ONE Type Heat Pump Water Heater Technical Manual
When error happens, though the system could be used in some circumstances, it could not reach the
expected efficiency. Please contact your supplier for help. Error Code Explanation (See table below table)
Display Malfunction Description Display Malfunction Description
E0 Error of sensor T5U P1
System high pressure protection
≥
3.0MPa active
；
≤ 2.4Mpa inactive
E1 Error of sensor T5L P2
High discharge temp. protection
Tp>115
℃，
Protection active
Tp<90
℃，
Protection inactive
E2
Tank and Wired Controller communication
error
P3
Open compressor circuit protection
（
PCB current_induction_circuit check there
is no current (I<1A
）
E4
(T3) Condenser output pipe temperature
sensor error
P4
Compressor overloaded protection (10 secs after
compressor startup, Current checking starts , If it
is over 10A lasting for 2sec or over 12A, the
compressor will be stopped and protected.)
On hybrid mode, when T4<12
℃， as well as hot
water is consumed too fast, compressor &
element will start at the same time, under this
condition, if current I>32A, system consider it as
current overload protection, shows P4 Or P9
E5
(T4) Outdoor ambient temperature sensor
error
P8
When there is no current on element circuit,
consider it as element open circuit
protection, shows P8, when system OFF,
protection inactive
E6 (Tp) Comp. discharge Sensor error P9
When there is more than 16A current on
Element circuit, Element overload current
protection active, inactive when system OFF
E7
Heat Pump system error
If any of P3/P4/P2/P1 continuously appear
3 times within single heating cycle, system
will consider it as “Heat Pump system
error”
LA
When the ambient temp is out of Heat Pump
running zone [-7
～
43
℃
],Heat Pump will stop ,then
LA protection code will appear, and ALARM
indicator flashes if the condition maintain more
than 20hr, Need to switch to Enhanced heating
Mode.
E8
Electric leakage error
If PCB current_induction_circuit check the
current difference between L,N >14mA,
system consider it as” electric leakage
error”
E9 (Th) Comp. suction Sensor error
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