Trouble Shooting - Dantherm HCC 2 Alu Service Manual

Trouble shooting

Introduction
Error signalling
Error list
Resetting errors
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This section shows how to acknowledge and understand possible operation errors.
For a proper error search, Dantherm strongly recommends to have a remote control con-
nected and operative with the unit.
Any possible error will be displayed on:
Device Signal
Unit Acoustic buzzer signal from the main PCB. Connect a remote or PC-
tool, in order to get the specific error shown.
Remote control Acoustic buzzer signal as well as displaying a specific error code.
PC-tool Displaying error number, as well as being able to log specific opera-
tions, over a longer time span.
Error displaying on a display, is a three digit information, for instance "E13" which means error
number 13.
See below list for a full description:
Number Specific error
E 1 Exhaust air fan
E 2 Supply air fan
E 3 By-pass damper
E 4 Extract air temperature sensor (T1)
E 5 Supply air temperature sensor (T2)
E 6 Extract air temperature sensor (T3)
E 7 Exhaust air temperature sensor (T4)
E 8 Room air temperature sensor (T5)
E 9 Humidity sensor, RH% (Accessory)
E 10 Outdoor temperature < -13 °C
E 11 Supply temperature < +5 °C
E 12 Fire alarm, any one of the internal sensor, is measuring a temperature > 70 °C.
E 13 Communication error / low signal
E 14 Fire alarm, duct connected fire thermostat (Accessory)
E 15 VOC sensor fail (Accessory)
After completion of any inspection or repair, due to possible errors, the unit can be reset by
disconnecting / re-connect the 230V AC power. This will reset the controller, and the unit will
start normal operation, and also restart a new search for possible errors. This could last up to
15 minutes.