Zelos™ 48-Inch Gas Catamaran
Troubleshooting Guide
Problem
Possible Cause
Solution
Boat will not respond to
throttle but responds to
other controls
Throttle channel is reversed
Reverse throttle channel on transmitter
Extra noise or extra
vibration
Damaged propeller, shaft or engine
Replace damaged parts
Propeller is out of balance
Balance or replace propeller
Reduced run time or
boat underpowered
Receiver battery charge is low
Completely recharge battery
Receiver battery is damaged
Replace battery and follow battery instructions
Blocking or friction on shaft or propeller
Disassemble, lubricate and correctly align parts
Boat conditions may be too cold
Make sure battery is warm before use
Drive dog is too close to the prop strut
Loosen drive dog and move out away from the
prop strut a small amount
Too little lubrication on flex shaft
Fully lubricate flex shaft
Vegetation or other obstacles block
the rudder or propeller
Remove vegetation or obstacles from rudder or
propeller
Boat will not Bind
(during binding) to
transmitter
Transmitter is too close to the boat
during binding process
Move powered transmitter a few feet from boat,
disconnect and reconnect battery to boat
Boat or transmitter is too close to
large metal object, wireless source
or another transmitter
Move boat and transmitter to another location and
attempt binding again
Receiver battery/transmitter battery
charge is too low
Replace/recharge batteries
Receiver switch is off
Power on Receiver switch
Boat will not connect
(after binding) to
transmitter
Transmitter is too close to the boat
during connecting process
Move powered transmitter a few feet from boat,
disconnect and reconnect battery to boat
Boat or transmitter is too close to
large metal object, wireless source
or another transmitter
Move boat and transmitter to another location and
attempt connecting again
Receiver battery/transmitter battery
charge is too low
Replace/recharge batteries
Receiver switch is off
Power on Receiver switch
Boat tends to dive in the
water or takes on water
Prop angle is incorrect
Adjust prop angle
The boat hull is not completely closed
Dry out the boat and ensure the hatch is fully
closed on the hull before returning the boat
to the water
Boat tends to turn one
direction
Rudder or rudder trim is not centered
Repair rudder or adjust rudder and rudder trim
for straight running when control is at neutral
Rudder does not move
Rudder, linkage or servo damage
Replace or repair damaged parts and adjust con-
trols
Servo wire is damaged or connections
are loose
Do a check of wires and connections, connect
or replace as needed
Transmitter is not bound correctly
Re-bind receiver to the transmitter
Receiver switch is off
Power on receiver switch
Controls reversed
Transmitter settings are reversed
Do the Control Direction Test and adjust controls
on transmitter appropriately
Engine overheats
Blocked water cooling system
Clean or replace parts in the water cooling system
Erratic control
Transmitter is too close to the boat
during binding process
Move powered transmitter a few feet from boat,
disconnect and reconnect battery to boat
Boat does not drive
straight
Transmitter steering trim not centered
Adjust steering trim so boat drives straight
No steering or lack of
steering
Steering dual-rate (D/R) not adjusted
correctly
Adjust steering steering dual-rate (D/R) knob on
transmitter to desired steering throw
Servo failed
Contact Horizon Product Support
No throttle or lack of
throttle
Throttle dual-rate (D/R) not adjusted
correctly
Adjust the throttle dual-rate (D/R) knob on
transmitter to desired steering throw
Engine failed
Contact Horizon Product Support
18
EN
