Haier 1U25S2SQ1FA-NR Manuals

Manuals and User Guides for Haier 1U25S2SQ1FA-NR. We have 1 Haier 1U25S2SQ1FA-NR manual available for free PDF download: Service Manual

Haier 1U25S2SQ1FA-NR Service Manual

Haier 1U25S2SQ1FA-NR Service Manual (70 pages)

Wall Mounted Type DC Inverter

Brand: Haier | Category: Air Conditioner | Size: 7 MB

Table of Contents

Table of Contents
2
Introduction
3
Model Name Explanation
3
Safety Cautions
4
Caution in Repair
4
Cautions Regarding Products after Repair
5
Inspection after Repair
7
Using Icons
7
Specifications
9
Sensors List
10
Piping Diagrams
11
Operation Range
12
Printed Circuit Board Connector Wiring Diagram
13
Wiring Diagrams
15
Indoor Unit
15
Main Functions and Control Specification
16
Protection Function
19
Value of Thermistor
22
Dimensional Drawings
30
Center of Gravity
30
Service Diagnosis
31
Parameter of Primary Electronic Appliance
31
Problem Symptoms and Measures
32
Error Codes and Description Indoor Display
33
Thermistor or Related Abnormality
34
EEPROM Abnormal
35
Indoor AC Fan Motor Malfunction
36
Outdoor DC Fan Motor Fault
37
IPM Protection
39
Over-Current of the Compressor
40
The Communication Fault between IPM and Outdoor PCB
41
Power Supply over or under Voltage Fault
42
Overheat Protection for Discharge Temperature
43
The Communication Fault between Indoor and Outdoor
44
Loss of Synchronism Detection
46
High Work-Intense Protection
47
Performance and Curves Diagrams
48
Cooling Capacity-Temperature Curves
48
Cooling Discharge Pressure Curves
50
Cooling Suction Pressure Curves
51
Heating Capacity-Temperature Curves
52
Heating Discharge Pressure Curves
54
Heating Suction Pressure Curves
55
Circuit Diagrams
56
Removal Procedure
60
Wall Mounted Type
60
Outdoor Unit
61
Remove the Casing
65

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