McQuay WSC Operating Manual page 79

Starter cooling fans(when
present) do not operate
Remote Keypad does not
operate correctly.
Table 38, Fault Code Troubleshooting Table
The following is a list of possible faults that can be generated by the D3 starter control.
Fault
Code
F01
F02 (F
OL)
F10
F11
F12
F13
F14
F15
OM Centrif Micro ΙΙ-5
Condition
Fan power supply lost
Fan wiring problem
Fan failure
Keypad cable not plugged in
properly or cable damaged.
Display interface board (when
present) not firmly plugged in.
Remote display damaged.
Description
Motor did not achieve full speed before the UTS timer (QST 09, P9)
expired.
UTS (Up To
Speed) Time
Check motor for jammed or overloaded condition.
Limit Expired
Evaluate UTS timer setting and, if acceptable, increase UTS timer setting
(QST 09, P9).
The D3 motor thermal overload protection has tripped.
Motor Thermal Check motor for mechanical failure, jammed, or overloaded condition.
Overload Trip
Verify that there is not an input line power quality problem or excessive
line distortion present.
Phase Rotation
Verify correct phase rotation of input power. Correct wiring if necessary.
Error, not ABC
Phase Rotation
Verify correct phase rotation of input power. Correct wiring if necessary.
Error, not CBA
Line frequency below 23 Hz was detected.
Verify input line frequency.
Low Line If operating on a generator, check generator speed governor for
Frequency malfunctions.
Check input supply for open fuses or open connections
Line power quality problem / excessive line distortion.
Line frequency above 72 Hz was detected.
Verify input line frequency.
High Line
If operating on a generator, check generator speed governor for
Frequency
malfunctions.
Line power quality problem / excessive line distortion.
Input power not Verify that single-phase power is connected to the L1 and L2 inputs.
single phase Correct wiring if necessary.
Input power not Single-phase power has been detected when the starter is expecting
three phase three-phase power.
Cause
Detailed Description of Fault / Possible Solutions
Solution
Verify fan power supply, check
fuses.
Check fan wiring.
Replace fan
Verify that the remote keypad
cable has not been damaged and
that it is properly seated at both the
keypad and the D3 Control board.
Verify that the display interface
board (if present) is firmly attached
to D3 control card.
Replace remote display.
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