Auto-Sleeper Harmony User Instructional Handbook page 30

Fault Possible Cause Proposed Fix
•
Control Panel has
no display •
•
•
•
Control Panel
12V Power turns
Problems off
•
Observe control panel handling instructions.
Control panel software may have crashed. Reboot
Control Panel
control panel by turning off the PSU isolate switch.
locked / erratic
Wait 30 seconds then turn the switch back on. Check
function
with your dealer that your system has the latest
software installed, as an update may be available.
No 230V supply Check all above.
Charger not
Turn charger switch on, switch will illuminate.
Switched on
Battery not
connected and / Install charged battery as per page 19
or charged
Power button on
control panel not Turn power on at control panel.
No 12 volt
switched to on
output
Battery flat /
from PSU
Recharge battery, check fuses, check charging
Battery fuse
voltage is present at battery.
blown
Check all fuses are intact and the correct value
Fuse blown
fuse is installed as per fuse table.
Equipment
Check equipment is switched on and connected
switched off /
to the 12V supply.
unplugged
Other fault Contact your Dealer.
58 Harmony - Troubleshooting Guide
Check batteries and fuses, turn PSU isolate switch
and charger switch on and ensure mains supply is
connected.
Check control panel connecting lead at PSU and
behind Control Panel.
Contact your Dealer.
Battery protect feature has operated to protect
the Vehicle battery and or the Leisure battery.
See page 20
Over voltage protection has been activated, the
control panel will display a warning. A number
of things can cause this but the most common is
the solar panel, it is worth checking the regulator
is connected correctly and operating within the
correct parameters.
Engine has been started, all equipment has been
disconnected to meet EMC requirements. See
page 15
Fault Possible Cause Proposed Fix
Fuse blown Replace fuse with correct value as per fuse table.
Pump not
working
Turn pump on by pressing the pump button at the
Pump turned off
control panel.
Fuse/s blown Replace fuse with correct value as per fuse table.
Lights not
working
Turn Lights on by pressing the lights button, use
Lights turned off
dimmer at the control panel.
Truma Air Conditioning System
Fault Code Possible Cause
Failure (short circuit or
# 1 broken cable), room
temperature sensor
Ice sensor failure –
# 2
internal
Ice sensor failure –
# 4
external (if present)
IR receiver unplugged
# 24
or cable broken
www.auto-sleepers.co.uk/harmony
Remedy
Contact Truma Service
Inspect the filter and replace it if necessary
Keep the air inlets / outlets on the roof free of
obstructions such as leaves
Contact Truma Service
Harmony - Troubleshooting Guide Harmony User Guide oduction 059 59