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OM-188 304 Page 33
7-3. Voltmeter/Ammeter Help Displays
. All directions are in reference to the front
of the unit. All circuitry referred to is lo-
cated inside the unit.
1 Help 0 Display
Indicates a shorted thermistor RT2 on the left
side of the unit. If this display is shown, con-
tact a Factory Authorized Service Agent.
2 Help 1 Display
Indicates a malfunction in the primary power
circuit. If this display is shown, contact a Fac-
tory Authorized Service Agent.
3 Help 2 Display
Indicates a malfunction in the thermal
protection circuitry located on the left side of
the unit. If this display is shown, contact a
Factory Authorized Service Agent.
4 Help 3 Display
Indicates the left side of the unit has over-
heated. The unit has shut down to allow the
fan to cool it (see Section 3-2). Operation will
continue when the unit has cooled.
5 Help 4 Display
Indicates a malfunction in the thermal
protection circuitry located on the right side
of the unit. If this display is shown, contact a
Factory Authorized Service Agent.
6 Help 5 Display
Indicates the right side of the unit has over-
heated. The unit has shut down to allow the
fan to cool it (see Section 3-2). Operation will
continue when the unit has cooled.
7 Help 6 Display
Indicates that the input voltage is too low and
the unit has automatically shut down. Opera-
tion will continue when the voltage is within
the acceptable lower range limit (15% below
the applicable input voltage). If this display is
shown, have an electrician check the input
voltage.
8 Help 7 Display
Indicates that the input voltage is too high
and the unit has automatically shut down.
Operation will continue when the voltage is
within the acceptable upper range limit (15%
above the applicable input voltage). If this
display is shown, have an electrician check
the input voltage. Help 7 can also indicate a
bus voltage imbalance.
9 Help 8 Display
Indicates a malfunction in the secondary
power circuit of the unit. If this display is
shown, contact a Factory Authorized Ser-
vice Agent.
10 Help 9 Display
Indicates a shorted thermistor RT1 on the
right side of the unit. If this display is shown,
contact a Factory Authorized Service Agent.
1
AV
2
AV
3
AV
HE.L P−0
HE.L P−1
HE.L P−2
4
AV
HE.L P−3
5
AV
HE.L P−4
6
AV
7
AV
8
AV
HE.L P−5
HE.L P−6
HE.L P−7
9
AV
HE.L P−8
10
AV
HE.L P−9