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TROUBLESHOOTING & REFERENCES
J-14
ENGLISH
Master Error Code Chart
HIGHWALL CONSOLE COMPACT CASSETTE
Outdoor
Pro-Series
LED Display
(CAC)
Outdoor
Multi-Zone
LED Display
(CAC)
Outdoor
Single-Zone
LED1 Flash
(RAC)
FAULT DESCRIPTION
Digital
Display
Digital
Display
Panel LED Flash or
ID PCB LED Flash
Yellow Timer LED
(PCB LED5)
Green Run LED
(PCB LED1)
/
/ 28 Low refrigerant flow. Lockout. / / / /
/
28 / Liquid pipe sensor failure: Circuit A F10 F10 4 8
/
29 / Liquid pipe sensor failure: Circuit B F16 F16 4 9
/
30 / Liquid pipe sensor failure: Circuit C F17 F17 5 0
/
31 / Liquid pipe sensor failure: Circuit D F18 F18 5 1
/
32 / Gas pipe sensor failure: Circuit A F29 F29 5 2
/
33 / Gas pipe sensor failure: Circuit B F30 F30 5 3
/
34 / Gas pipe sensor failure: Circuit C F31 F31 5 4
/
35 / Gas pipe sensor failure: Circuit D F32 F32 5 5
/
36 / Gas pipe sensor failure: Circuit E F26 F26 5 6
/
/ 37 Outdoor pipe temperature protection in cooling mode F34 F34 5 7
37
/ / Compressor overcurrent detected by IPM / / / /
38
38 /
Malfunction of module temperature sensor momentary
power failure detection
F35 F35 5 8
39
39 39 Malfunction of condensing temperature sensor F36 F36 5 9
/
40 / Liquid pipe sensor failure - Circuit E F33 F33 6 0
/
41 / Toci temperature sensor failure F38 F38 6 1
42
42 / High Pressure switch open F39 F39 6 2
43
43 / Low Pressure switch open F40 F40 6 3
44
44 /
System high pressure protection: Overcharged, high
condensing temperature or malfunction of fan motor.
F41 F41 6 4
45
45 /
System low pressure protection: Undercharged, low
defrosting temperature, or malfunction of fan motor.
F42 F42 6 5
/
/ 46 Incorrect match between indoor & outdoor F43 F43 6 6
/
L0 / OAT less than -22°F (-30°C) / / / /
/
/ / Indoor ambient temperature sensor failure E1 E1 0 1
/
/ / Indoor coil temperature sensor failure E2 E2 0 2
/
/ / Indoor PCB EEPROM failure E4 E4 0 4
/
/ / Communication fault between the indoor and outdoor unit / / 0 7
/
/ /
Communication fault between the controller and Indoor
unit
/ E8 0 8
/
/ / DC voltage of the fan motor driver too high or too low / / / /
/
/ / Fan motor driver over 95°F (35°C) / / / /
/
/ / Indoor fan motor out of step / / / /
/
/ / Drain system malfunction / E12 0 12
/
/ / Zero cross signal detected wrong / E13 / C1 0 13
/
/ / Indoor fan motor malfunction E14* E14 0 14
/
/ / Indoor fan motor overcurrent / / / /
* Hidden indoor error code. LED1 will flash outdoors, but no error will appear on indoor unit display.
To view error code on indoor display, press and hold the Emergency button for 15 seconds.
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