Daikin EHSH04P30D, Инструкция по установке и обслуживанию

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8 Faults and malfunctions
Installation and maintenance instructions
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Daikin Altherma EHS(X/H)
Daikin Altherma integrated solar unit
008.1444099_00 – 07/2018 – EN
8 Faults and malfunctions
DANGER: RISK OF ELECTROCUTION
Electrostatic charges can lead to voltage arcing that can
destroy the electronic components.
▪ Before touching the control panel PCB, ensure potential
equalisation.
8.1 Troubleshooting
The electronics of the Daikin Altherma EHS(X/H)
▪ signal a fault by status display illuminating in red and
▪ show a fault code on the display.
An integrated fault memory stores up to 15 fault messages that have
occurred most recently.
Depending on the operating mode, messages are also forwarded to
connected room controllers or room thermostats.
Troubleshooting: Error code E90XX
1 On the RoConPlus controller: Perform an error reset (see Con-
troller operating instructions).
2 Error will be displayed again shortly: Find and rectify the cause
of the error.
Troubleshooting: Other error codes
1 Find and rectify the cause of the error.
8.2 Overview of possible malfunctions
Malfunction Possible cause Possible solution
System not working
(nothing on the display,
operation LED on Ro-
Con BM2C off) No mains voltage
▪ Switch on the system's external main switch.
▪ Switch on system fuse(s).
▪ Replace system fuse(s).
Switching time pro-
grams are not operating
or programmed switch-
ing times are carried
out at the wrong time. The date and time are not set correctly.
▪ Set the date.
▪ Set the time.
▪ Check the weekday to switching time assignment.
Incorrect operating mode set.
▪ Set the "Automatic 1" or "Automatic 2" operating mode
During a switching time the user made a manual set-
ting (e.g. changed the target temperature, changed
the operating mode) 1 Select the "Operating mode" menu [→ Main menu → Oper-
ating mode].
2 Select the correct operating mode.
The controller does not
respond to inputs The controller's operating system has crashed.
▪ RESET the controller. To do this, disconnect the system from
the power supply for at least 10 s and then switch on again.
Operating data are not
updated The controller's operating system has crashed. ▪ RESET the controller. To do this, disconnect the system from
the power supply for at least 10 s and then switch on again.
Heating does not warm
up Requirement heating mode shut off (e.g. switching
time program is in the economy phase, outside tem-
perature is too high, parameters for optional backup
heater (EKBUxx) incorrectly set, requirement for hot
water active)
▪ Check the operating mode setting.
▪ Check the request parameters.
▪ Check the date, time and switching time program settings on
the controller.
Refrigerant compressor is not working.
▪ With backup heater (EKBUxx) installed:
▪ Check that the backup heater heats the return flow temperat-
ure to at least 15 °C (at a low return flow temperature, the
heat pump uses the backup heater first to achieve this min-
imum return flow temperature).
▪ Check mains supply of the backup heater (EKBUxx).
▪ Thermal contactor (STB) on the backup heater (EKBUxx) has
triggered. Unlock.
The system is in the "Cooling" operating mode.
▪ Switch the operating mode to "Heating".
Settings for off-peak mains connection do not cor-
respond to settings for electrical connections. ▪ HT/NT function is active and the [HT/NT connection] para-
meter is set incorrectly.
▪ Other configurations are also possible. However, these must
match the type of off-peak mains connection.
▪ The [SMART GRID] parameter is active and the connections
are incorrectly set.
The electricity company has sent the peak rate sig-
nal. ▪ Wait for the repeat off-peak rate signal which reactivates the
power supply.