Install Manual

Page 36
mrcool.com
Maintenance
Error Code
WARNING
• When abnormalities occur, stop the unit immediately and disconnect the power. Then, contact
MRCOOL
®
Tech Support at the number below. If the unit continues to run abnormally, it could damage
the unit and cause electric shock, personal injury, and/or create a fire hazard.
DO NOT attempt repairs to the appliance yourself. Improper repair and maintenance can
cause electric shock, personal injury and/or create a fire hazard. Please contact MRCOOL
®
Tech Support, at [phone], for further guidance or a qualified professional for repairs.
Number Error Code Error
1 E1 Compressor high pressure protection
2
E4 Compressor air discharge high-temperature protection
4 F2 Condenser temperature sensor error
5 F3 Outdoor ambient temperature sensor error
6 F4 Discharge temperature sensor error
7 F6 Outdoor unit tube temperature sensor error
8
9
EE Outdoor unit memory chip error
10
11
12
H4 Overload
13
H5 IPM protection
14
H6 DC fan error
15
H7 Driver out-of-step protection
16
HC Pfc protection
17
Lc Startup failure
18
19
20
21
P0 Drive reset protection
3
E3
Compressor low pressure protection
If the display panel displays an error code, please refer to the following table:
P6
Master control and driver communication error
Driver module sensor error
P8 Driver module high temperature protection
P7
P5 Over-current protection
PA AC current protection
Pc Driver current error