22
12. TROUBLESHOOTING
Always start by checking any error messages.
If a fault occurs in the system, the cause will be shown on the display. This is only displayed when the control panel is in standby mode.
The boiler does not start on gas (Gas Failure)
• No LPG?
• Is the main tap fully open?
• Check that the type of LPG used is suitable for the prevailing outdoor temperature. Use of butane is unsuitable at
temperatures lower than +10°C. Use propane instead!
• Check that the fuse for the boiler has not tripped.
• Check that power at 12 V is being supplied to the boiler (> 11 V); the current voltage can be read off from the
service menu.
• Check that the exhaust hose is secured properly between the boiler and ue and that it is not damaged or blocked
with dirt, condensation or water. The exhaust hose consists of two hoses, an inner one and an outer one.
• Check there is nothing obstructing/blocking the path of the exhaust gases at the ue.
• Check for correct gas pressure. This can be done by starting all hobs on the gas cooker and then starting the
boiler on gas operation. If there is a reduction in ame on the cooker, the gas pressure is incorrect.
• If the boiler has not been operated for some time, or if the LPG cylinder is new, it may take longer than normal to
light the boiler. Try to restart the boiler.
• If this does not help, contact Alde.
The electrical heater is not working satisfactorily
SHOCK HAZARD
The 230V electrical service presents a risk of electrical shock. Do not attempt to service the electric heating element
yourself.
• Check that the fuse for the boiler has not tripped.
• Check that there is a 12 V supply to the boiler (> 11 V); the current voltage can be read off from the service menu.
• Check that 230 V really is being supplied to the boiler. Long and/or imsy connection cables result in greater volt-
age drop and the voltage is sometimes lower under certain conditions.
• Check that the power level selected on the panel is high enough, see section ”2:6 Heating with electricity”
in the oper-
ating instructions for the Alde Compact 3020 HE
.
• Check that the load monitor* (where present) has been correctly installed.
• If this does not help, contact Alde.
Poor heat or none at all (circulation in the heating system)
• Check that the symbol for the circulation pump is visible in the standby menu when heating is required, see sec-
tion 4.
• Check that the circulation pump is working.
• Check that the correct circulation pump is activated, see section “11. Activation of installed functions”.
• Check that the heating system has been bled.
*ACC not working satisfactorily
• Ensure that the temperature sensor that is used reacts effectively to the room temperature for both heating and
cooling. To increase sensitivity of the sensor, a more open temperature sensor can be used (
Part No.
3010 638). If the
AC does not provide cooling due to low outdoor temperature, the outdoor sensor can be temporarily disconnected
to test the AC.
With an outside temperature sensor (
Part No.
3010 299) tted, the ACC function is improved: if the outdoor temperature is
too low, the AC should not run at all.
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