P/T Valve; Common Problems - EAS Electric E150WHK User Manual

6.2.3 Heat pump unit noise
Screw loosening retighten
The coppertube shakes against the metal shell
valve
6.2.4 P/T
Don' t dismantle
Don' t press on the handle
Don' t block the outlet
The valve has to be pulled out half a year in case of
blocking. Avoid scalding by the hot water from the outlet.
Drainpipe should be lead to an open area.
V.2
coppertube shaping
31

6.2.5 Common problems

Warning： The controller is warning if any of the following exceponal cases happens; Parameter
codes are showas below (Code descripon
Failure
Mulfunction Code
performance
Low pressure failure A12 Stop heatng
High pressure failure A13 Stop heatng
Water tank top
A20 Stop heatng
sensor failure
Water tank bottom
A21 Stop heatng
sensor failure
Coil temp. sensor
A22 Stop heatng
failure
Exhaust air sensor
-
A23
failure
Ambient air sensor
A25 -
failure
Suction air sensor
A26 Stop heatng
failure
Solar water outlet
A27
-
sensor failure
DC fan motor failure A28 Stop heatng
Compressor
A41 Stop heatng
overcurrent protection
Communication failure
A51
Stop heatng
Exhausted air temp.
A61 Stop heatng
overhigh
=A12):
Remark
Recovery Way
Automacally recovery for 3 times,
manually recovery after 3 times
Automacally recovery for 3 times,
manually recovery after 3 times
Automacally recovery
Automacally recovery
Automacally recovery
Automacally recovery
Automacally recovery
Automacally recovery
Automacally recovery
Manually recovery
Automacally recovery for 3 times,
manually recovery after 3 times
Automacally recovery
Automatically recovery for 3 times
when exhausted air temperature
reduce, manually recovery after
3 times
V.2
32