Elmo Rietschle G-BH1e Series

Questions and Answers

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Christina RileyAug 20, 2025
What to do if my Elmo Rietschle G-BH1e Blower does not start?
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  Wendy HendersonAug 20, 2025
  If your Elmo Rietschle Blower isn't starting, here are a few things to check: * First, ensure that the power supply lead isn't interrupted by checking fuses, terminals, and power supply cables. * If the DC-bus voltage is too low (indicated by a rapidly blinking red LED and 'Lu' on the keypad), verify the mains voltage. * If the controller is inhibited (indicated by a blinking green LED and '?' on the keypad), remove the controller inhibit. Note that controller inhibit can be set through several sources. * If the setpoint is 0, enter the appropriate setpoint. * Finally, check for and eliminate any active faults.
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Diane White DDSAug 22, 2025
Why does my Elmo Rietschle G-BH1e's frequency inverter assume fault mode after controller enable?
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  Charles HarrisAug 22, 2025
  There are several reasons why the frequency inverter on your Elmo Rietschle Blower might enter fault mode after the controller is enabled: * The impeller could be jammed. If so, open the blower cover, remove any foreign objects, and clean the area. * The impeller might be defective, requiring replacement. * A rolling bearing on either the drive motor side or the vacuum pump/compressor side could be defective, necessitating replacement of the respective bearing. * The throttling might not match the specification on the rating plate; reduce the throttling in this case. * The filters, mufflers, and connection pipes may need cleaning.
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kwilliamsAug 25, 2025
What does OH ?? (50) OH ?? mean on my Elmo Rietschle G-BH1e Blower?
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  Amber LandryAug 25, 2025
  The error code OH ?? (50) OH ?? on your Elmo Rietschle blower indicates an overheating issue. This could be due to several reasons: * The ambient temperature is too high, ensure better ventilation and allow the frequency inverter to cool down. * The heatsink is heavily polluted, clean the heatsink. * There are impermissibly high currents or frequent and overly long accelerations, check the dimensioning of the side channel blower. * Check the load, if necessary, replace defective bearings.
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Courtney YoungAug 26, 2025
What does OC3 ?? (13) mean on my Elmo Rietschle G-BH1e Blower?
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  Lisa AlvaradoAug 27, 2025
  The OC3 ?? (13) error on your Elmo Rietschle blower indicates an overload condition. This may be due to: * Frequency inverter overload during acceleration, increase acceleration time. * Incorrect U - boost (C0016) setting, correct the setting. * Incorrect U/f-rated frequency (C0015) setting (only for operation with control cabinet inverter 2FCxxxx-2NE00), correct the setting. * Excessive differential pressure, check the system's differential pressure. * Side channel blower starts at half throttle, increase acceleration time and open valves. * Impeller jammed, repair the side channel blower.
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Cynthia DanielsAug 28, 2025
What does error code OU mean on Elmo Rietschle G-BH1e Blower?
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  Michael StricklandAug 28, 2025
  The error code OU on your Elmo Rietschle blower indicates an overvoltage issue. This can be caused by: * Mains voltage being too high, check the voltage supply. * Braking operation, increase deceleration times. * Earth leakage at the motor side, check the motor cable and motor for earth faults, separating the motor and frequency inverter if necessary.
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Samuel WrightAug 30, 2025
What does LU error mean on Elmo Rietschle Blower?
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  Louis ThompsonAug 30, 2025
  The 'LU' error code on your Elmo Rietschle blower indicates a low voltage issue. This can happen because: * The mains voltage is too low, check the mains voltage. * The DC-bus voltage is too low, check the supply module. * A 400 V frequency inverter is connected to a 230 V mains, connect the frequency inverter to the correct mains voltage.
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Jennifer CookSep 1, 2025
What does OH3 ?? (53) error mean on my Elmo Rietschle G-BH1e?
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  Kathleen VasquezSep 1, 2025
  The error code OH3 ?? (53) on your Elmo Rietschle Blower indicates that the motor is too hot. This could be due to: * Excessive currents or frequent and overly long accelerations, check the dimensioning of the side channel blower. * A jammed impeller, repair the side channel blower. * A disconnected or defective PTC or thermostat, connect or repair the PTC or thermostat.
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stephanie60Sep 3, 2025
How to fix abnormal flow noises in my Elmo Rietschle Blower?
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  Debra MartinSep 3, 2025
  Abnormal flow noises in your Elmo Rietschle Blower can often be resolved by: * Cleaning the pipes or using pipes with a larger cross-section if the flow speed is too high. * Cleaning or replacing the muffler inserts if the muffler is soiled.
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Lisa DoughertySep 5, 2025
Why my Elmo Rietschle Blower operates when setpoints are 0?
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  williamsevelynSep 5, 2025
  Your Elmo Rietschle Blower might be operating even with setpoints at 0 due to: * A minimum output frequency set to > 0 Hz (default is 10 Hz). Change drive characteristics only under special circumstances! (Set C0010 = 0 Hz). * A setpoint has been set in C0140 (setting of C0140 stored in non-volatile memory). Set C0140 = 0 Hz if necessary.
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Rebecca HarveySep 7, 2025
Why is the current consumption of my Elmo Rietschle Blower motor too high?
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  Douglas DanielsSep 7, 2025
  If the current consumption of your Elmo Rietschle Blower motor is too high, it might be because the C0016 setting is either too large or too small. Correct the setting to resolve this issue.