21 62-11850
ALARM LIST AND ALARM RESET
Reset Passive Alarms and Clear the Maintenance Interval Message SE
1. While displaying either the P** alarm code or the SE alarm, press
simultaneously the +, -, and SET keys. This will cancel all passive
alarms or the service hourmeter will reset.
ALARM ALARM / ERROR DESCRIPTION
A00 No malfunction. Unit is in operation.
A01/A02/A03 Low pressure switch open / High pressure switch
open / DC electrical motor over heated (displayed al-
ternatively).
A04 Clutch compressor fault.
A06 Condenser fault.
A07 Evaporator fan fault.
A09 Defrost valve (HGS1) fault.
A11 Main heat valve (HGS2) fault.
A12 High temperature alarm.
A13 Low temperature alarm.
A14 Defrost alarm > 45 minutes.
A15 Setpoint adjusted out of the range -20°F / +86°F.
E E Evaporator temperature probe (open circuit).
b A t Battery low voltage alarm.
S E Maintenance needed. This is a maintenance alarm
that occurs every 1000 hours. To reset this alarm, re-
fer to procedure to Reset Passive Alarms and
Clear the Maintenance Interval Message SE.
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