116
expansion valve partial clogged
appearance of dustproof net or evaprator is too
dirty
return air inlet of A/C is clogged
appearance of condenser is too dirty
misuse manipulator, opened heating equipment
hot water flow controller/ solenoid warm water
valve fault or it jamed at the open position
manipulator fault can not control hot water flow
controller/solenoid warm valve closed
can not heating
or insufficient
heating
water temprature of engine is too low
use it when water temperature of
engine is rising
manipulator fault can not control hot water flow
controller/ solenoid warm water valve opened
hot water flow controller/ solenoid warm water
wire line fault
warm water flow controller/ solenoid warm water
valve fault or warm water valve jamed at the
closed position or samll position
warm water valve closed or opened a little
manipulator heat setting is too little
magnify heating capacity setting
manipulator/ misuse control panel, opened
refrigeration
close refrigeration mode/A/C
switch
surface of dustproof net is too dirty
return air inlet of A/C is clogged