Dimplex LIA 7IM Instructions D'installation Et D'utilisation page 52

10
10 Faults / troubleshooting
This heat pump is a quality product and is designed for trouble-
free operation. If you cannot correct the fault yourself, please
contact your after-sales service technician.
10.1 Troubleshooting
The symptoms listed below do not
indicate a malfunction.
Symptom
Operation takes around 5 minutes to resume after a restart.
The outdoor unit does not work.
The system does not heat properly.
The device starts to operate after a power failure.
Check the following points before contacting the after-sales service.
Symptom
The device does not heat properly.
The device is noisy when running.
The device does not work.
The operating LED does not light up or the display on the
operator panel is blank.
The operating LED flashes and an error code appears on the
operator panel display.
 Switch the device off and inform your retailer of the error
code.
 As soon as an error code appears, the timer function is
deactivated.
EN-18
All manuals and user guides at all-guides.com
Any work on the heat pump must only be performed by an authorised and
qualified after-sales service technician.
Possible cause

This is a mechanism intended to protect the device.

If the external temperature is outside the operating range,
the heat pump system activates protective functions.

The air inlet / outlet openings on the outdoor unit may be blocked by
snow.

If the hot water outlet temperature is set too low, it is possible that
the required heat output will not be achieved.

This is the automatic device restart feature.
Possible cause

Set the temperature correctly.

Is the radiator valve closed?

Ensure that the air inlet and outlet openings
of the outdoor unit are not obstructed.

Check whether the device has been installed tilted
or whether the cover is not properly closed.

Check whether the circuit breaker has tripped.

Has the power supply been interrupted or has the power failed?
Emergency heating operation button



ATTENTION!
The indoor unit's supplementary heating can be used as an
emergency heater if the outdoor unit experiences a fault.
Press to switch emergency heating operation on.
Press to switch emergency heating operation off
again.
During emergency heating operation, no other
operations may be performed.