Carrier 17/19EX - Manual (Page 315)

Table 8 — LID Primary and Secondary Messages and Custom Alarm/Alert Messages
with Troubleshooting Guides
F. Start-Up Failures:
This is an alarm condition. A manual reset is required to clear.
Primary
Message Secondary
Message Alarm Message/Primary
Cause
Additional Cause/Remedy
Failure To
Start
Low Oil Pressure OILPD [VALUE] exceeded limit
of [LIMIT]*. Check oil pump sys-
tem. Check for closed oil supply valves.
Check oil filter. Check for low oil tem-
perature. Check transducer accuracy.
Failure To
Start
Oil Press Sensor
Fault OILPD [VALUE] exceeded limit
of [LIMIT]*. Check oil pressure
sensor. Check for excessive refrigerant in oil
sump. Run oil pump manually for 5 min-
utes. For hermetic compressors, check
both oil pressure and cooler pressure.
For open-drive units, check calibration
of oil pressure differential amplifier
modules. Check wiring. Replace trans-
ducers if necessary.
Failure To
Start
Low Chilled
Water Flow EVFL Evap Flow Fault: Check
water pump/flow switch. Check wiring to flow switch. Check
through Control Test for proper switch
operation.
Failure To
Start
Low Condenser
Water Flow CDFL Cond. Flow Fault: Check
water pump/flow switch. Check wiring to flow switch. Check
through Control Test for proper switch
operation.
Failure To
Start
Starter Fault STR FLT Starter Fault: Check
starter for Fault Source. A starter protective device has faulted.
Check starter for ground fault, voltage
trip, temperature trip, etc.
Failure To
Start
Starter Overload
Trip STR FLT Starter Overload Trip:
Check amps calibration/reset
overload. Reset overloads, check ICR relay
before restarting machine.
Failure To
Start
Line Voltage
Dropout V P Single-Cycle Dropout
Detected: Check voltage supply. Check voltage supply. Check trans-
formers for supply. Check with utility if
voltage supply is erratic. Monitor must
be installed to confirm consistent,
single-cycle dropouts. Check low oil
pressure switch.
Failure To
Start
High Condenser
Pressure High Condenser Pressure
[LIMIT]:* Check switch 2C aux,
and water temperature/flow. Check for proper design condenser flow
and temperature. Check condenser
approach. Check 2C auxiliary contacts
on oil sump starter. Check high pres-
sure switch.
Failure To
Start
Excess Accelera-
tion Time CA P Excess Acceleration:
Check guide vane closure at
start-up. Check that guide vanes are closed at
start-up. Check starter for proper opera-
tion. Reduce unit pressure if possible.