Other Faults - Daikin Rotex RHOB12AAV1 Installation Instructions Manual

8.3

Other faults

8.3.1 Boiler controller is noisy when igniting
Possible causes:
Gas supply pressure too high.
No
Incorrect ignition distance.
No
Gas/air regulation not correctly configured.
No
Weak spark.
Checking mold ignition pin position
8.3.2 Boiler controller resonates
Possible causes:
Gas supply pressure too low.
No
Recirculation combustion gases.
No
Gas/air regulation not configured correctly.
No
Boiler controller gasket faulty.
No
Boiler controller faulty.
8.3.3 No heating (CH)
Possible causes:
The service display shows a hyphen (
boiler is off.
No
Room thermostat/weather dependent regulation
not closed or faulty.
No
Pump is not running. Display shows 80 and 1.
No
No electrical supply (24 V).
ROTEX Heating Systems GmbH
Solution:
Yes The home pressure controller may be faulty. Contact the energy company.
Check the ignition pin distance.
Yes Replace the ignition pin.
Yes Check the setting, see gas/air regulation.
Check the ignition distance.
Yes Check and/or replace ignition cable.
Replace the ignition unit on the gas block. Replace the ignition pin.
Pin must touch mold
Solution:
Yes The home pressure controller may be faulty. Contact the gas company.
Yes Check the combustion gas outlet and air supply.
Yes Check the setting, see gas/air regulation.
Yes Replace the boiler controller gasket.
Yes Replace the boiler controller.
Solution:
Switch on the boiler with the
-
). The
Yes
Check the wiring.
Check OpenTherm and On/off connection of the unit.
Yes
Replace the thermostat.
Replace the weather-dependent regulation.
Check the electricity supply.
Check connector X2.
Yes
Insert a screwdriver into the slot of the pump shaft and turn the shaft.
Replace faulty pump.
Replace the faulty controller. Check the wiring in accordance with the diagram.
Yes Check the connector X4.
Replace the faulty controller.
Pin must not touch mold
button.
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