Other Features 5-33
PA-1628Operator's ManualH3-45 COACH
Using The Heater Manually With The Vehicle
Accessory “On”
Push button.
The symbol will appear in the display next to the
time of day.
The time of day will remain displayed during ignition
on operation.
The heater will function continually as long as the
vehicle ignition is “on ” .
When the vehicle ignition is turned “off” the heater
will continue to operate for an additional 15 minutes.
The run time can be altered by pressing the or
buttons.
The heater can be turned off by pressing button.
To Turn Heater “Off” - All Modes
Press the button once.
The heat signal to the heater will be turned “off”.
The heater will do a normal cooldown and turn itself
“off”.
PREHEATER TROUBLESHOOTING AND
MAINTENANCE
Up to five fault codes are stored in the heater control
box. They can be displayed on the timer.
Query Fault Memory F1 – F5
Condition: The heater is switched off.
• Press button –> the heater is switched on.
• Press button and keep it depressed, then press
button within 2 seconds.
The display is as follows:
AF = current fault
3 digit number = fault code
flashes.
• Press button once or several times, fault
memory positions F1 – F5 are displayed.
For additional details, refer to the Maintenance
Manual Section 22, under heading "Auxiliary
Preheating System (Option)", also refer to supplier
publications Eberspacher Hydronic LII
Troubleshooting and Repair manual and
Eberspacher Hydronic L- II Installation Operating
Maintenance manual found on the Technical
Publications Website, and on the Technical
Publications USB flash drive delivered with the
vehicle.
NOTE
If there are no preheater faults, the preheater will
go through a normal start cycle and regulate based
on thermostat setting.
NOTE
Switch on the preheating system 10 minutes about
once a month, even during the warm season.
CAUTION
To avoid running down the batteries, do not turn on
the preheating system for more than one hour
before starting the engine. To run the heater for
longer periods, connect the vehicle.
WARNING
The preheating system uses the same fuel as the
engine. Do not operate in a building or while
refueling. Operate only in a well-ventilated area.
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