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Troubleshooting
Any error messages will be displayed on the
Standby Screen. Error messages can be
cleared by removing 12 V supply to the boiler
for 10 secs.
The system is completely dead, the
control panel is blank
• Check the 20 mm T3.15 Amp glass fuse in
the boiler. This is located under the lid of the
black plastic service hatch, in a green plastic
fuse holder.
• Check the 12 V supply to the boiler, it should
be above 12 V.
• Check the 12 V cable is plugged into the
boiler. Check the cable is plugged into the
Alde control panel.
The boiler will not ignite on gas, but no
error message
• The system may not need to use gas heating
if also using electric heating.
• The fluids in the boiler may already be at
operating temperature.
The boiler will not heat on 230 V electric
• Check the circuit breaker and any 230 V
fuses.
• Check that any 230 V isolator switches are
on (they will often have an LED indicator and
230V fuse).
• Check the 230 V supply to the vehicle.
• The fluids in the boiler may already be at
operating temperature.
No hot water
• Check that Hot Water Ignore is not activated
on the Alde control panel.
• Check that Continuous pumping is not
activated on the Alde control panel.
• Check for other conflicting settings on the
Alde control panel.
• Check the fresh water supply and water
pump.
No central heating
• Bleed the system of air.
• Check the fluid level in the expansion tank.
• Check that the circulation pump is
responding.
• Check that hot water boost is not activated
on the Alde control panel.
• If electric heating is not being used, set it to
“Off” on the Alde control panel.
• Use gas and electric heating for best
performance.
• Check that vents in the furniture are not
obstructed.
• Check the condition of the heat transfer fluid.
• Most vehicles will reach a comfortable
temperature within 40 mins, in non-extreme
conditions.
Circulation pump active even though
system is off
• 12 V supply to the boiler dropped to 7 V
momentarily. Check 12 V supply for stability.
“Panel failure 1” & “Panel failure 2”
• Moisture is trapped in the control panel.
• Remove the Alde control panel from
the vehicle and air in a warm, dry place
overnight.
“Gas failure”
• Out of gas or gas is not igniting.
• Check the gas cylinder is full. Try a different
gas cylinder, ensuring it is propane gas.
• Check the gas regulator and any isolation
valves are open and not frozen.
“Overheat red fail” or “Overheat blue fail”
• Bleed the system of air.
• Check the fluid level in the expansion tank. It
should be 1 cm above Min mark when cool.
• Check the correct circulation pump is
installed, selected and responding.
• 12 V supply to the boiler dropped to 7 V
momentarily. Check 12 V supply for stability.
• Wait 15 mins for the fluid to cool down.
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