Hoval TopVent GV, Руководство по эксплуатации, Страница: 35 / 44

Case 9: Too many reset actions in a short time span
■ This error will disappear after some time or if the main power is disconnected
for a while.
Case 11: Insufficient air passage through the heat exchanger, pressure switch does not close
■ Check if the gas blower is running.
■ Check if the flue system is blocked or restricted.
■ Check the pressure switch and the connections.
■ Check the heat exchanger for flue leakage.
Case 12: E-error for more than 24 hours
■ Switch the air heater off and on and check the error code.
Case 13: Internal error
■ Isolate the electrical supply and reenergise. If this does not help:
– Replace the burner control unit.
Case 14: Pressure switch is closed in standby mode
■ Check if the contact is stuck. If so:
– Replace the pressure switch.
■ Check if there is water in the hose. If so:
– Dry the hose.
Case 15: Flame detected after closing the gas valve
■ Check if the gas valve closes too slow. If so:
– Replace the gas valve.
■ Check if the ionisation electrode is wet. If so:
– Dry, clean or replace the electrode.
Case 16: Flame detected before opening the gas valve
■ Check if there really is a flame before ignition. If so:
– Replace the gas valve.
■ Check if the ionisation electrode is wet. If so:
– Dry, clean or replace the electrode.
Case 19: Heating configuration error
■ Contact Hoval Customer Service.
11.5 Further troubleshooting
Other possible malfunctions are:
Explosive ignition and/or frequent flame failures
■ Check if the gas control settings are correct (see section 9.5).
– A correct CO
2
value is important for a proper ignition.
■ Check the ignition cable.
– It should have a resistance of 1 kΩ.
■ Check the position of the ignition electrode.
– The spark has to be formed between the two electrodes, not between the
electrode and the burner.
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TopVent ® TG | GV | MG
Operating instructions
Troubleshooting Troubleshooting
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