Heartland Owners Forum
http://manuals.heartlandowners.org
Landmark 365 User Guide V1.1.pdf
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Version 1.1, March 10, 2016
The other circuit breakers are auto-reset. They may trip if the device being powered draws more amps
than the breaker is rated for, but will reset in a few seconds.
Hydraulics Pump Circuit Breaker
In the annotated buss bar picture, notice that the 2
nd
breaker from the top also has a heavy red wire
attached to the right side of the breaker. That provides power to the hydraulic pump and auto-leveling
system.
Intermittent Operation of Leveling System or Slide outs
If the operation of the hydraulic pump is interrupted for a few seconds while using the auto-leveling
system or while operating hydraulic slide outs, the circuit breaker may be tripping and resetting. This
can be caused by any of several things. Most commonly, the breaker has weakened and just needs to
be replaced. The 12V 50 amp auto-reset mini-circuit breaker costs around $10 and can be easily
replaced in 10-15 minutes. Often, replacing the breaker will completely fix the problem.
Other possible causes include low battery charge or dirty/corroded battery connections, loose wires or
loose crimps on the wires. These conditions lead to reduced voltage at the pump motor, causing the
motor to draw more amps than the breaker is rated to handle.
There can be other possible causes, such as mechanical binds or motor issues, but these are far less
common. Replacing the breaker may save you a trip to the repair shop.
Differences From These Pictures
It’s possible that the hydraulics breaker could be on the top and the Power Converter/Fuse Box breaker
could be the 2
nd
from the top. The main thing is to look for the size of the wires to find these two
circuits. The breaker with the reset button is to the Power Converter/Fuse Box.
