19
62--61177--01
MALFUNCTION CODE -- Red LED flashes
AL22
Open circuit condenser fan
AL23
Open circuit hot water solenoid
AL24
Open circuit defrost valve (HGS1)
AL25
Open circuit liquid injection valve
AL26
Open circuit hot gas valve (HGS2)
AL27
Open circuit drain water resistor (DWR1)
AL28
Open circuit electrical heating relay (EHR)
b. Direct access
EE
Malfunction : evaporator temperature probe (open circuit)
bAt
Battery low voltage alarm
-- -- --
-- -- --
-- -- --
Twin power supply (road and standby)
Err
Programming mistake of the maximum setpoint by the user
-- -- --
Setpoint lower than maximum setpoint but in the range - 29_C/+30_C
NOTE :
Direct access malfunction messages are displayed instead of temperature read--out as soon as the
malfunction is detected, and remain displayed as long as malfunction persists.
The unit does not run until the malfunction has disappeared or been corrected.
8. MAINTENANCE
A comprehensive maintenance program will help to insure that the unit continues to operate reliably. Such a
maintenance program will also help to control operating costs, increase the unit’s working life, and improve
performance.
NOTE
All m a intenance services must be done by a technician trained on Carrier products respec ting
all safety and quality standards of Carrier.
Before any operation requiring an intervention on the unit, check that :
- the unit (cab command) is OFF.
- it is impossible for the unit to automatically start--up during maintenance.
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