Jayco JAY FEATHER Towables 2021, Owner'S Manual

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Section 6: Electrical System
 The battery works in conjunction with the converter to supply DC power to the
RV. A battery is typically only necessary if you do a lot of dry camping or have
slideouts and/or a leveling system.
 Reverse polarity fuse provides protection for the converter when a battery is used.
If the battery is connected backwards to the fuse board this fuse would blow pre-
venting damage to the converter.
 If your lights are dimming or flickering that usually indicates an overloaded con -
verter. Remove some of the load by turning off DC lights or appliances.
 Fan is controlled by load. It will begin running at 3 to 6 amp DC draw. It increases
in speed with a higher load until 14 to 15 amps. Fan is at maximum speed and
stays there even with more load. If load drops below 6 amps DC, the fan shuts off.
Before checking for converter output voltage, the battery cables must be disconnected at the
battery. Make sure the converter is plugged into an AC source (105-132 AC volts). Check
the converter output voltage at the battery with a voltmeter. Place the voltmeter probes on
the disconnected battery cables. If the voltage reads 13.6VDC with no load, the converter
is functioning properly.
If the converter output voltage at the battery reads in the 0.0VDC range, or the battery is not
charging, check for:
 An open inline fuse in the battery wire
 An open wire between the converter and the RV battery
 Loose ground connection
 Improper torques
If the converter fuses and AC voltage are good, but the converter output still reads zero volts,
the converter is not functioning prope rly.
Modes of Operation
Absorption (Normal) Mode: 13.6VDC range. Batteries are being charged, just at a slower
rate. Converter will not work without AC input.
Float Trickle Mode: To get your converter into this mode reduce the load on the system to
almost nothing but the battery. Let the system sit for approximately 44 hours.
Converter voltage will drop to 13.2VDC. If the converter sees any load during this period or
after it is in Float Mode it will revert back to Absorption (Normal) Mode. 13.6VDC.
Bulk Mode : Converter will not jump into the “Bulk Mode” unless the battery is below 50%
of charge, or approximately below 13.2VDC output voltage. There is no way to force it to
go into Bulk Mode.
Red LED indicates blown fuse.
Inspection and maintenance
If the 12-volt power converter is not working (auxiliary battery not being charged) check the
reverse polarity fuse(s) located on the end of the converter.
There are no customer serviceable parts inside the converter case and the manufac-
turer’s warranty will be void if the case has been removed
. If you have further concerns
contact your dealer.
It is important that the fluid level of any connected batteries be checked on a
regular basis. All batteries will “gas” and lose some fluid when continuously
connected to any charging source (does not apply to “gel-cell” batteries).
Table of Contents Maintenance Record