Technical information

TROUBLE SHOOTING
EN / WHISPER 3.5 / December 2009 / Copyright © 2009 Mastervolt 25
5.1.2 Failure or warning messages displayed on the remote control panel
AC warnings and
failures
Meaning What to do?
No failure None (no failure detected) --
UAC Low Generator output voltage too low See section 5.1.3,
UAC High Generator voltage too high See section 5.1.3,
IAC High AC output current is too high Reduce connected load or see section 5.1.3,
FAC Low AC output frequency is too low, engine speeds is
too low.
See section 5.2.3.
FAC High AC output frequency is too high, engine speed is
too high.
See section 5.2.3.
Overload Too much load connected to the AC output of
the generator
Reduce connected load or see section 5.1.3,
DC warnings and
failures
Meaning What to do?
No failure None (no failure detected) --
UDC Bat low Battery voltage of the starter battery is too low
(flat battery),
Check battery voltage. Recharge the battery,
check battery charger. Inspect battery
terminals and cables for a good electrical
connection (inspect against corrosion, tattered
wires, etc.)
Charger failure Defective charger, charger fuse blown Check battery charger, check charger fuse
Charger temp. Internal temperature of battery charger circuit on
local control panel too high
Check battery charger
IDC Fuel high DC current through the fuel lift pump was too
high
Check fuel lift pump, check fuel valve. Check
for short circuit in wiring
IDC Stop high DC current through the pull to stop relay was too
high
Check pull to stop relay. Check for short circuit
in wiring
IDC Glow high DC current through the glow plug was too high
Check glow plug. Check for short circuit in
wiring
IDC Start high DC current through the start solenoid was too
high
Check start solenoid. Check wiring to start
solenoid. Check for short circuit in wiring
UDC Fuel high DC voltage to the fuel lift pump was too high
Check whether no external DC source is
connected to wiring to the fuel lift pump.
UDC Stop high DC voltage to the pull to stop relay was too high
Check wiring to of pull to stop relay.
UDC Glow high DC voltage to the glow plug was too high
Check whether no external DC source is
connected to wiring to the glow plug.
UDC Start high DC voltage to the start solenoid was too high
Check whether no external DC source is
connected to wiring to the start solenoid.
UDC Fuel low DC voltage to the fuel lift pump was too low Check for short circuits in the fuel lift pump,
check for short circuits in the wiring.
UDC Stop low DC voltage to the pull to stop relay was too low Check for short circuits in the pull to stop relay,
check for short circuits in the wiring.
UDC Glow low DC voltage to the glow plug was too low Check for short circuits in the glow plug, check
for short circuits in the wiring.
UDC Start low DC voltage to the start solenoid was too low
Check for short circuits in the start solenoid,
check for short circuits in the wiring.