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8. OUTDOOR UNIT INSTALLATION MANUAL
Engineering Data book
8
14
TROUBLESHOOTING
You can perform fault diagnosis of the outdoor unit with the LEDs on the P.C. board of the outdoor unit in addition
to using the check codes displayed on the wired remote controller of the indoor unit.
Use the LEDs and check codes for various checks. Details of the check codes displayed on the wired remote
controller of the indoor unit are described in the Installation Manual of the Hydro unit.
Verifying current abnormal status
1. Check that DIP switch SW803 is set to OFF.
2. Jot down the states of LED800 to LED804. (Display mode 1)
3. Press SW800 for at least 1 second. The LED status changes to display mode 2.
4. Check the code whose display mode 1 equals the LED states jotted down and display mode 2 equals the current
flashing status of LED800 to LED804 from the following table to identify the cause.
Verifying an abnormal state in the past although the abnormal state no longer occurs
1. Set bit 1 of DIP switch SW803 to ON.
2. Jot down the states of LED800 to LED804. (Display mode 1)
3. Press SW800 for at least 1 second. The LED status changes to display mode 2.
4. Find an error whose display mode 1 equals the LED states jotted down and display mode 2 equals the current
flashing states of LED800 to LED804 from the following table to identify the error.
• An outside
air temperature (TO) sensor error
can be checked only while it occurs.
No.
Cause
Display mode 1
Display mode 2
D800 D801 D802 D803 D804 D800 D801 D802 D803 D804
1
Normal
2
Discharge (TD) sensor error
3
Heat exchanger (TE) sensor error
4
Heat exchanger (TL) sensor error
5
Outside air temperature (TO) sensor error
6
Suction (TS) sensor error
7
Heat sink (TH) sensor error
8
Outdoor temperature sensor (TE/TS) connection error
9
Outdoor EEPROM error
10
Compressor breakdown
11
Compressor lock
12
Current detection circuit error
13
Thermostat for compressor activated
14
Model data not set (on the service P.C. board)
15
MCU-MCU communication error
16
Discharge temperature error
17
Abnormal power (open phase detected or abnormal voltage)
18
Heat sink overheat
19
Gas leak detected
20
4-way valve reverse error
Summary of Contents for ESTIA HWS-1501CSHM3-E
Page 3: ...2 1 INTRODUCTION ...
Page 7: ...6 2 SYSTEM OVERVIEW ...
Page 11: ...10 3 SYSTEM SPECIFICATION ...
Page 60: ...59 5 OUTDOOR UNIT ...
Page 79: ...78 6 HOT WATER CYLINDER ...
Page 85: ...84 7 HYDRO UNIT INSTALLATION MANUAL ...
Page 132: ... 131 7 HYDRO UNIT INSTALLATION MANUAL Engineering Data Book MEMO ...
Page 133: ...132 8 OUTDOOR UNIT INSTALLATION MANUAL ...
Page 162: ... 161 8 OUTDOOR UNIT INSTALLATION MANUAL Engineering Data book MEMO ...
Page 163: ...162 9 OWNER S MANUAL ...
Page 179: ...Air to Water Heat Pump Engineering Data Book Oct 2010 ...