Malfunctions - Daikin EHSX04P30A Operating Instructions Manual

8 x Errors, malfunctions and messages
8.2

Malfunctions

Malfunction
System not working (no
No mains voltage
display)
Date and time are not correctly set.
Switching time program
is not working or pro- Incorrect operating mode set.
grammed switching times
are being carried out at
During a switching time the user made a man-
the wrong time.
ual setting (e.g. changed the target tempera-
ture, changed the operating mode)
Control unit does not
Operating system of control unit crashed.
respond to entries
Operating data are not
Operating system of control unit crashed.
updated
Heating request switched off (e.g. switching
time program is in the economy phase, exter-
nal temperature is too high, parameters for
backup heater (EKBUxx) are set incorrectly,
hot water request is active)
Refrigerant compressor is not working.
Heating does not warm
up
ing".
Settings for off-peak mains connection do not
correspond to settings for electrical connec-
tions.
The power company has sent the high-cost
signal.
Operating instructions
46
Possible cause
System is in the operating mode "Cool-
Possible solution
● Switch on the external main switch of the machine.
● Switch on system fuse(s).
● Replace system fuse(s).
● Set date.
● Set time.
● Check week day-switching time allocation.
● Set to operating mode "Automatic 1" or "Automatic 2".
1. Place the rotary switch in the "Info"
2. Place the rotary switch in the "Operating Mode"
position.
3. Select correct operating mode.
● Carry out RESET of control unit. o do so, disconnect
the system from the power supply for at least 10 s and
then switch on again.
● Carry out RESET of control unit. To do so, disconnect
the system from the power supply for at least 10 s and
then switch on again.
● Have the heating system checked by a Daikin heating
technician.
● Check the operating mode setting.
● Check the request parameters.
● Check setting of the date, time and switching time
program on the control unit.
● Have the heating system checked by a Daikin heating
technician.
● Switch the operating mode to "Heating".
● Have the heating system checked by a Daikin heating
technician.
● Wait for the repeat off-peak rate signal which reacti-
vates the power supply.
position.
Daikin Altherma EHS(X/H)
Daikin Altherma integrated solar unit
008.1420944 – 05/2014