MrCool Universal Series Service Manual

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No. Error Code Error Remarks
38 PL Bus low voltage protection
39 PH Bus high voltage protection
40 PU Charge loop error
41 PP Input voltage abnormality
42 ee Drive memory chip error
43 HC PFC protection
44 C4 ODU jumper cap failure
45 d1 DRED1 mode
46 d2 DRED2 mode
47 d3 DRED3 mode
48 E9 Water overow protection
49 EL Emergency Stop (Fire Alarm)
50 08 Defrosting
51 09 Oil Return
NOTE
When several malfunctions occur at the same time, these error codes will be displayed circularly. When there
is a malfunction, turn o the unit and request professional assistance.
No. Error Code Error Remarks
1 AL Fan DC busbar under voltage protection
2 AH Fan DC busbar over voltage protection
3 AA Fan AC current protection (input side)
4 A1 Fan IPM module protection
5 AF Fan PFC abnormality
6 Ac Fan startup failure
7 Ad Fan missing phase
8 A0 Fan drive module resetting
9 UL Fan current protection
10 UP Fan power protection
11 AE Fan current sensor malfunction
12 AJ Fan motor loss of synchronization
13 A6 Fan driving part to main-control communication malfunction
14 A8 Overheat protection of fan radiator
15 A9 Fan radiator sensor malfunction
16 An Fan drive shortage chip malfunction
17 AU Fan charge circuit malfunction
18 AP Fan AC input voltage abnormality
19 Ar Fan drive board environment temperature sensor malfunction
20 U9 Fan AC contactor protection or input zero crossing error
WIRED CONTROLLER
2

MrCool Universal Series Specifications

General

Type	Inverter
Brand	MrCool
Series	Universal Series
Refrigerant	R410A
Phase	1
Heating Capacity	Varies by model
Cooling Capacity	Varies by model
Compatibility	Universal
HSPF Rating	10
Voltage	208/230V
Operating Temperature (Cooling)	Varies by model
Operating Temperature (Heating)	Varies by model
Indoor Noise Level (dB)	Varies by model
Outdoor Noise Level (dB)	Varies by model
Indoor Unit Dimensions (H x W x D)	Varies by model
Outdoor Unit Dimensions (H x W x D)	Varies by model
Indoor Unit Weight	Varies by model
Warranty	5 years