Daikin Altherma HT Service Manual

Troubleshooting by Remote Control ESIE09-08B
122 Troubleshooting
2.2 Self-diagnosis by Wired Remote Control
Explanation If operation stops due to malfunction, the remote control’s operation LED blinks, and
malfunction code is displayed. (Even if stop operation is carried out, malfunction contents are
displayed when the inspection mode is entered.) The malfunction code enables you to tell what
kind of malfunction caused operation to stop. See page 127 for malfunction code and
malfunction contents.
Note:
1. Pressing the INSPECTION/TEST button will blink the check indication.
2. While in check mode, pressing and holding the ON/OFF button for a period of five seconds or
more will cl
ear the failure history indication shown above. In this case, on the codes display,
t
he malfunction code will blink twice and then change to “00” (=Normal), the Unit No. will
change to “0”, and the operation mode will automatically switch from check mode to normal
mode (displaying the set temperature).
3. Subcode is needed to indicate which refrigerant system is causing the error.
Inspection display
Inspection/Test button
ON/OFF button
Operation LED
Malfunction code
with subcode

Daikin Altherma HT Specifications

General

Type	Air-to-water heat pump
Refrigerant	R-410A
Water Outlet Temperature	Up to 80°C
Operating Temperature Range	-20°C to 35°C
Power Supply	3-phase, 400V
Energy Efficiency Class (Heating)	A++