Cleaning The Casing; Troubleshooting; Resolving Operating Errors; Types Of Error Code - DeDietrich HPI S Series User Manual

5.6

Cleaning the casing

6

Troubleshooting

6.1

Resolving operating errors

6.1.1

Types of error code

Tab.21
Type of code
Warning
Blockage
Lockout
6.1.2

Blocking codes

Tab.22 List of blocking codes linked to the EHC–05 PCB
Code Message
H00.17 DHW sensor Closed
H00.32 TOutside Open
7684505 - v04 - 10022022
1. Select the
2. Check the pressure that is displayed in the right section of the main
Off
screen.
3. If the pressure is less than 1.5 bar, contact the installer so that they
check the condition of the expansion vessel, check hydraulic leak-
tightness and top up the water.
1. Clean the outside of the appliance using a damp cloth and a mild
detergent.
If your appliance malfunctions, the status LED flashes and/or changes
colour and a message containing an error code is displayed on the user
interface screen. This error code is important for the correct and rapid
diagnosis of the type of malfunction and for any technical assistance that
may be needed.
If an error occurs:
1. Make a note of the code displayed on the screen.
2. Remedy the problem described by the error code or contact the
installer.
3. Switch the heat pump off and back on to check that the cause of the
error has been removed.
4. If the code is displayed again, contact the installer.
The user interface can display three types of error code:
Code format
Axx.xx
Hxx.xx
Exx.xx
A blocking code signals an anomaly affecting the heating system.
Several examples:
The system automatically attempts to correct the error (for example in
the event of a fault related to the flow rate).
The error is still present and the system functions in defect mode (for
example, in the event of a fault affecting the outdoor unit, the backup is
started up).
The system is shut down but automatically switches on again when the
error disappears.
When one of the codes below is displayed, contact the professional
responsible for maintenance of the heat pump.
Description
Domestic Hot Water tank temperature sensor is either shorted or measures a
temperature above range
Outside temperature sensor is either removed or measures a temperature below range
Water Pressure icon.
Colour of the status LED
Green flashing
Continuous red
Flashing red
6 Troubleshooting
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