8.0 Troubleshooting
Should a problem arise with the use of the Hoist, this section offers guidance to all known faults revolving the product. The list of faults below offers the correct actions in sequence to resolve the issue.
For each step per scenario, if the step does not determine the issue, continue to the following step in sequence until the fault is found. Once the fault is found, refer to the action guide with the corresponding number to resolve the issue. After following the correct action, check that the Hoist is now functioning correctly, and perform a simple test. See Section 4.0 for correct test procedure.
For guidance on how to dismantle the Hoist to perform troubleshooting actions, see section 9.0 – Servicing.
If the fault is not found and/or the solutions do not correct the problem, contact your local Mackworth authorized dealer immediately.
Troubleshooting Guide: |
Action Guide: |
Hoist doesn’t turn on: Operate the handset to determine if the Hoist powers up. If it does not – Follow the Troubleshooting guide below. 1. Check the Handset is correctly connected to the Air Grommet. 2. Check the Handset air tube is not damaged, e.g. cuts and holes. 3. Check the E-Lower Cord has not been used, this will leave the toggle switch in OFF mode. 4. Doc the Hoist into the Charger to see if the Hoist begins to Charge, it is possible the Hoist is out of battery. 5. Check the Battery Lead connection points are connected properly, from battery to PCB. 6. Check for any damage to the battery leads, e.g. cuts and breaks. 7. Check to see if the Fuse on the Battery Lead has blown. 8. Check the Limit Switch Wires for any damage, cuts and breaks. For thorough inspection, removal is recommended. See section 9.8 for guidance. 9. Perform a visual check on the PCB for any damage, e.g. blown components. 10. Using a Battery Tester, check that both Batteries are providing around 12V to the PCB. 11. Replace current PCB. 12. Replace current Limit Switch Block. Replace current Toggle Switch. |
Hoist doesn’t turn on: Operate the handset to determine if the Hoist powers up. If it does not – Follow the Troubleshooting guide below. 1. Re-attach the Handset to the Air Grommet – See User Manual on Handset attachment. 2. Remove the Handset from the Hoist and Replace – See User Manual on Handset attachment. 3. Press the red tab vertically to switch the toggle switch from OFF to ON. 4. If Hoist LED flashes orange, use Handset to attempt to turn on Hoist. If unsuccessful, continue Troubleshooting Guide and refer to the section on “Hoist not Charging” as this is likely the guide to resolve the issue. If Hoist turns on, allow the Hoist to charge before testing. If Hoist does show signs of charging but does not turn on, continue this Troubleshooting Guide. 5. Re-attach the Battery Leads as shown in section 9.3. 6. Remove the Battery Leads and Replace as shown in section 9.3 7. Replace the Fuse as shown in section 9.13 8. Replace the Limit Switch Block – See section 9.8 9. Replace the PCB – See section 9.2 10. If voltage is below 12V. Replace the Batteries – See Section 9.3 11. See section 9.2 on PCB replacement. 12. See section 9.8 on Limit Switch Block replacement. 13. See section 9.16 on Toggle Switch replacement. |
Hoist doesn’t charge: There are two various troubleshooting guides for this issue. Refer to the most relevant guide. Standard Charging: Dock the Hoist correctly (ensure the beak is making contact with the Dock) to determine if the Hoist will charge, if the display does not show “charging” or the LED does not flash orange, follow the Troubleshooting Guide below.
1. Check the Charger is turned on at the power supply – the charging unit LED should show a steady green light when turned on, and flashing orange when the Hoist is charging. 2. Check Charger wiring for damage, e.g. cuts and breaks. 3. Check Voltage and Current through the Charging Dock. 4. Check the Charging Beak is not damaged, e.g. Cracks, breaks, Contact Strips are intact. 5. Check Charging Beak wiring from the beak to the PCB for damage or disconnection. 6. Check PCB for damage near the Charging Beak connection point, e.g. blown components. 7. Check the Batteries output using a Battery Tester. 8. Replace Charging Beak 9. Replace Charger 10. Replace PCB
Constant Charge: Do not operate the Hoist and allow the Hoist to charge at its current location. If the display does not show “charging” or the LED does not flash orange, follow the Troubleshooting Guide below. 1. Check the Constant Charge Charger is turned on at the power supply – the charging unit LED should show a steady green light when turned on, and flashing orange when the Hoist is charging. 2. Check that the Constant Charge Beak is in contact with the Ceiling Track charge strips. 3. Check Charger wiring for damage, e.g. cuts and breaks. 4. Check Voltage and Current through the Charging Dock. 5. Check the Constant Charge Beak is not damaged, e.g. Cracks, breaks. 6. Check the Constant Charge Strips within the Track are not damaged, e.g. poor connections, broken strips. 7. Check Charging Beak wiring from the beak to the PCB for damage or disconnection. 8. Check PCB for damage near the Charging Beak connection point, e.g. blown components. 9. Check the Batteries output using a Battery Tester. 10. Replace Charging Beak 11. Replace Charger 12. Replace PCB |
Hoist doesn’t charge: There are two various troubleshooting guides for this issue. Refer to the most relevant guide. Standard Charging: Dock the Hoist correctly (ensure the beak is making contact with the Dock) to determine if the Hoist will charge, if the display does not show “charging” or the LED does not flash orange, follow the Troubleshooting Guide below.
1. Turn the Plug Switch at the wall on. 2. Replace Charger Assembly. See Installation Manual for Charger installation. 3. Use a Voltmeter and Ammeter to determine the Voltage and Amps of the Charging Dock, the voltage should show 24VDC. Amperes should show 1A. If there is no Voltage or Current running through the Charger, check the Fuse in the Plug. Replace if necessary. If there is no fault to be found, replace the Charging Doc Unit. See the Installation Manual to install Charger Replace the Charging Beak. See Section 9.12 4. If the wire is damaged, replace the beak (see section 9.12), if wiring is disconnected from board, re-connect correctly (see section 9.12) 5. Replace the PCB – See section 9.2 6. If Batteries or non-responsive, replace the batteries. 7. See section 9.12 for Charging Beak replacement. 8. See Charger Installation within the Installation Manual. 9. See section 9.2 on PCB replacement. Constant Charge: Do not operate the Hoist and allow the Hoist to charge at its current location. If the display does not show “charging” or the LED does not flash orange, follow the Troubleshooting Guide below. 1. Turn the Plug Switch at the wall on. 2. Inspect the Beak for damage that may cause the lowered height. Replace if necessary. 3. Replace Charger Assembly. See Installation Manual for Charger installation. 4. Use a Voltmeter and Ammeter to determine the Voltage and Amps of the Charging Dock, the voltage should show 24VDC. Amperes should show 1A. If there is no Voltage or Current running through the Charger, check the Fuse in the Plug. Replace if necessary. If there is no fault to be found, replace the Charging Doc Unit. See the Installation Manual to install Charger 5. Replace the Charging Beak. See Section 9.12 6. See the Installation Manual for the specific ceiling track for service and repairs to the constant charge strip. 7. If the wire is damaged, replace the beak (see section 9.12), if wiring is disconnected from board, re-connect correctly (see section 9.12) 8. Replace the PCB – See section 9.2 9. If Batteries or non-responsive, replace the batteries. 10. See section 9.12 for Charging Beak replacement. 11. See Charger Installation within the Installation Manual. 12. See section 9.2 on PCB replacement. |
Hoist doesn’t lift: There are three various troubleshooting guides for this issue. Refer to the most relevant guide. No Error Indication: Attempt to raise/lower Hoist with handset, but Hoist is not responding. Hoist does not give any indication of what the fault could be. Follow the Troubleshooting Guide below. 1. Check the Lift Motor Wires are connected properly between the Toggle Switch and Motor. 2. Check for damage along the Motor Wires, e.g. Cuts and breaks. 3. Check for damage along the two Toggle Switch Wires which provide power to the Lift Motor. 4. Check Lift Motor gearing inside the Hoist for damage. The teeth could be worn down and no contact is being made with the Hub. 5. Check Hub teeth for damage. The teeth could be worn down and no contact is being made with the Lift Motor. 6. Check PCB for damage near the Toggle Switch, e.g. blown components. 7. Replace Lift Motor. 8. Replace PCB 9. Replace Toggle Switch |
Hoist doesn’t lift: There are three various troubleshooting guides for this issue. Refer to the most relevant guide. No Error Indication: Attempt to raise/lower Hoist with handset, but Hoist is not responding. Hoist does not give any indication of what the fault could be. Follow the Troubleshooting Guide below. 1. Connect the Motor Wires and Toggle Switch Wires correctly. See 9.5 for guidance. 2. Replace the Lift Motor. See section 9.5 for guidance. 3. Replace the Toggle Switch. See section 9.16 for guidance. 4. Replace the Lift Motor. See section 9.5 for guidance. 5. Replace the Hub. See section 9.9 for guidance. 6. Replace the PCB. See section 9.2 for guidance. 7. See section 9.5 on guidance to replace the Lift Motor. 8. See section 9.2 on guidance to replace the PCB. 9. See section 9.16 on guidance to replace the Toggle Switch. |
High Current: Attempt to raise/lower Hoist with handset, the LCD Displays the message “High Current” and the alarm beeps for 3 seconds. Follow the Troubleshooting Guide below. 1. Check Program Mode to determine if the Load is set to 24 Amps. 2. Inspect the internal gearing between the Hub and Lift Motor for wear, swarf and damage. 3. Check for lift tape fraying/wear that may be jamming the gears within the Hoist. 4. Check Battery Voltage using Battery Tester as high current could be due to low battery. 5. Check PCB for any damage, e.g. Blown components. 6. Replace the Lift Motor. 7. Replace the PCB. No Limit Switch: Attempt to raise/lower Hoist with handset, the LCD Displays message “No Lim_Sw!” and the Hoist alarms a continuous beep. Follow the Troubleshooting Guide below. 1. Fully inspect the condition of the Limit Switch Block wires for cuts and breaks. For thorough inspection, removal of the Limit Switch Block is recommended. See section 9.8 for guidance. 2. Remove the Limit Switch Block and inspect the rollers for damage, e.g. a roller is jammed and isn’t functioning as intended. Use your finger to press the rollers individually and listen for the limit switch clicks. 3. Check PCB for any damage, e.g. Blown components. 4. Replace the Limit Switch Block. 5. Replace the PCB. |
High Current: Attempt to raise/lower Hoist with handset, the LCD Displays the message “High Current” and the alarm beeps for 3 seconds. Follow the Troubleshooting Guide below. 1. Follow section 3.1 on how to enter program mode to adjust load and ensure the PCB is set to 24 Amps. 2. Remove swarf from gearing if any. Replace Hub (section 9.9) and/or Lift Motor (section 9.5) if necessary due to damage and wear. 3. Replace the Lift Tape (section 9.10) and remove any frayed material jamming the gears. 4. Charge Hoist if Battery Voltage is 24.5V or lower. Test Hoist once sufficiently charged. 5. Replace the PCB, see section 9.2 for guidance. 6. See section 9.5 to replace Lift Motor. 7. See section 9.2 to replace the PCB. No Limit Switch: Attempt to raise/lower Hoist with handset, the LCD Displays message “No Lim_Sw!” and the Hoist alarms a continuous beep. Follow the Troubleshooting Guide below. 1. Replace the Limit Switch Block. See section 9.8 for guidance. 2. Replace the Limit Switch Block if Block is damaged. See section 9.8 for guidance. 3. Replace the PCB. See section 9.2 for guidance. 4. See section 9.8 on guidance for Limit Switch Block replacement. 5. See section 9.2 on guidance for PCB replacement. |
LED and/or LCD inactive: Attempt to raise/lower Hoist with handset, the Hoist does perform commands but the LCD Display does not respond or LED light has no colour. Follow the Troubleshooting Guide below. 1. Check LCD Display or LED externally for any impact damage, e.g. cracks or breaks. 2. Check the LCD Display or LED wiring for damage such as cuts or breaks. Ensure they are plugged in. 3. Inspect the PCB for any damage such as blown components. 4. Replace the Bottom Cover Assembly. 5. Replace the PCB. |
LED and/or LCD inactive: Attempt to raise/lower Hoist with handset, the Hoist does perform commands but the LCD Display does not respond or LED light has no colour. Follow the Troubleshooting Guide below. 1. Replace the Bottom Cover of the Hoist. See section 9.7 for guidance. 2. Plug the wires in correctly or replace the Bottom Cover if the wires are damaged. See section 9.7 for guidance. 3. Replace the PCB. See section 9.2 for guidance. 4. See section 9.7 for guidance on Bottom Cover replacement. 5. See section 9.2 for guidance on PCB replacement. |
E-Stop Cord not functioning: Attempt to halt power to the Hoist using the E-Stop Cord. The E-Stop Cord does not carry out the motions of: ON, OFF, E-Lower 1. Inspect the E-Lower Cord red tab within the Chassis for displacement or jamming around the Toggle Switch. 2. Check for any damage around the E-Lower Cord such as cracks or breaks that have caused the failure. 3. Inspect the functionality of the Toggle Switch alone to determine if the Motions of: ON, OFF, E-Lower are working correctly |
E-Stop Cord not functioning: Attempt to halt power to the Hoist using the E-Stop Cord. The E-Stop Cord does not carry out the motions of: ON, OFF, E-Lower 1. Reposition the red tab correctly around the Toggle Switch, for guidance see section 9.17 on E-Lower Cord Fitting. 2. Replace the E-Lower Cord. See section 9.17 for guidance. 3. Replace the Toggle Switch if not functioning correctly. See section 9.16 for guidance. |
Hoist has power but does not respond to handset commands: Attempt to raise/lower with the handset but the Hoist does not respond. (E-Lower Cord is functioning, indicating there is power). 1. Check the Handset is correctly connected to the Air Grommet. 2. Check the Handset air tube is not damaged, e.g. cuts and holes. 3. Check the Air Grommet tubes are connected correctly at both ends, Air Grommet and PCB connection points. 4. Check the Air Grommet tubes from the Air Grommet to PCB are not damaged, e.g. cuts and breaks. 5. Replace the Handset and test functions. 6. Replace the PCB as the Air Switch could be damaged. |
Hoist has power but does not respond to handset commands: Attempt to raise/lower with the handset but the Hoist does not respond. (E-Lower Cord is functioning, indicating there is power). 1. Re-attach the Handset to the Air Grommet – See User Manual on Handset attachment. 2. Remove the Handset from the Hoist and Replace – See User Manual on Handset attachment. 3. Re-attach the Air Grommet tubes correctly. For guidance to connect to the PCB, see section 9.2. To re-attach at the Air Grommet end, there is a label on the inside of the Chassis colour coding the tubes to the correct connection point. 4. Replace the Air Grommet assembly. See section 9.15 for guidance. 5. See User Manual for guidance on fitting new handset. 6. See section 9.2 on PCB replacement. |