Perfectaire 1PAMSH18-MZO2-16, Service Manual

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45 The last error or protection code 00 means no malfunction and protection
8.3.2 Outdoor unit’s digital display tube
There is a digital display tube in outdoor PCB.
Digital display tube display function
 In standby , the LED displays “- -”
 In compressor operation, the LED display the running frequency,
 In defrosting mode, The LED displays “dF” or alternative displays between running frequency and
“dF”(each displays 0.5s)
 In compressor pre-heating, The LED displays “PH” or alternative displays between running frequency
and “PH”(each displays 0.5s)
 During the oil return process, The LED displays “RO” or alternative displays between running
frequency and “RO”(each displays 0.5s)
 In low ambient cooling mode, the LED displays “LC” or alternative displays between running
frequency and “LC”(each displays 0.5s)
 In forced cooling mode, the LED displays “FC” or alternative displays between running frequency and
“FC”(each displays 0.5s)

When PFC module protection occurs three times within 15 minutes, the LED displays “E6” or
alternative displays between running frequency and “E6”(each displays 0.5s)
 In protection or malfunction, the LED displays error code or protection code.