Table of Contents
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No
1
Ambient temperature sensor error
2
Defrosting temperature sensor error
3
Discharge temperature sensor error
4
Suction temperature sensor error
5
6
7
Fan error
8
High pressure protection
9
Low pressure protection
10
High discharge protection
11
Capacity DIP switch error
12
Communication error between the outdoor and indoor main boards
13
Communication error between the outdoor main board and the drive board
14
Communication error between the display panel and indoor main board
15
High pressure sensor error
Leaving water temperature sensor error for the plate type heat exchanger of the
16
heat pump
Leaving water temperature sensor error for the auxiliary electric heat of the heat
17
pump
Entering water temperature sensor error of the plate type heat exchanger of the
18
heat pump
Water tank temperature sensor error
19
("NA" for mini chillers)
20
Remote room temperature sensor error
21
22
Welding protection to the auxiliary electric heater 1 of the heat pump
23
Welding protection to the auxiliary electric heater 2 of the heat pump
24
Welding protection to the water tank electric heater
25
DC bus under-voltage or voltage drop error
26
DC bus over-voltage
27
AC current protection (input side)
28
IPM defective
29
PFC defective
30
Start failure
31
Phase loss
32
Jumper cap error
33
Driver resetting
34
Compressor overcurrent
35
Overspeed
36
Current sensing circuit error or current sensor error
37
38
Compressor stalling
GB
Operation Instructions for the Compact Type ATW Heat Pump
Error List
Full Name
32
hydria +
Displayed Name
Ambient sensor
Defrost sensor
Discharge sensor
Suction sensor
Econ. in sens.
Econ. out sens.
Outdoor fan
High pressure
Low pressure
Hi-discharge
Capacity DIP
ODU-IDU Com.
Drive-main com.
IDU Com.
HI-pre. sens.
Temp-HELW
Temp-AHLW
Temp-HEEW
Tank sens.
T-Remote Air
HP-Water Switch
Auxi. heater 1
Auxi. heater 2
Auxi. -WTH
DC under-vol.
DC over-vol.
AC curr. pro.
IPM defective
PFC defective
Start failure
Phase loss
Jumper cap error
Driver reset
Com. over-cur.
Overspeed
Current sen.
Comp. stalling
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