22
| EN
RIRS 350 P EKO 3.0 v2021.1
9. POSSIBLE FAULTS AND TROUBLESHOOTING
FAILURE
CAUSE
EXPLANATION / CORRECTIVE ACTIONS
Unit is not operating
No supply voltage
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relay is active (if installed by the installer)
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Air supply heater or pre-heater is not operat-
ing or malfunctioning (if installed)
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protection
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Check if fans are rotating
Manual protection is activated
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MUST be contacted to identify and eliminate
the failure .
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Filter replacement needed
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on the remote control panel
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broken, or its pressure is set improperly.
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Rotor is not rotating
Rotor belt is broken
Inspect the rotor belt. If it is broken then it
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Rotor belt failure
Rotor belt is slipping
If belt is not broken, check its tightness and
adjust, if necessary.
