PREVOST H3-45 2023 Operator's Manual page 151

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.
PA-1652 Operator's Manual H3-45 Coach
Other Features 5-19