Trotec TTR 2000 Mode D'emploi page 53

Troubleshooting
Fault
"Fault" indicator light illuminated
Insufficient dehumidification
performance
EN
Cause of error
• rotation control (STB RAL) responds
• rotor at a standstill
• process air flow interrupted
• regeneration air temperature increased
inadmissibly
• maximum thermostat (STB RHZ) responds
• regeneration air flow interrupted
• regeneration air temperature increased
inadmissibly
• differential pressure switch for
regeneration air does not switch
• fan does not rotate/fans do not rotate
• air volumes incorrect
• regeneration heating failed
• filter dirty
• process air flow interrupted
• rotor is not turning
• incorrect rotor rotation direction
desiccant dehumidifier TTR 2000 / TTR 2800 / TTR 3700
Measure
• Check thermostat setting.
• Check rotor drive and toothed belt for
proper functioning, repair if necessary.
• Check process air fan for proper
functioning.
• Check throttle valves, if any.
• Press reset button.
• Check thermostat setting.
• Check regeneration air fan for proper
functioning.
• Check throttle valves, if any.
• Check filters.
• Press reset button.
• Check hose connection.
• Check setting, correct if necessary.
• Check pressure switch for proper
functioning.
• See below.
• Calibrate air volumes.
• Check filters.
• Check housing (panels/doors) for air leaks.
• Check radial and circumferential seal at
the rotor.
• Check throttle valves, if any.
• Check rotational direction of fans.
• Check heater for proper functioning,
measure temperatures, have it replaced if
necessary.
• Check fuses, replace them if necessary.
• Check relays, contactors, have them
replaced if necessary.
• Check control thermostat setting.
• Change filter.
• Check process air fan for proper
functioning, have it replaced if necessary.
• Check air passages, flaps.
• Check belt/chain tension.
• Check drive motor for proper functioning,
have it replaced if necessary.
• Check toothed belt pulley for tight fit,
fasten it if necessary.
• Correct rotational direction.
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