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Gerald PorterJul 25, 2025
How to troubleshoot Maxon GPTLR-44 Lifting Systems motor that will not run?
- CChristina HunterJul 25, 2025
To troubleshoot a Maxon Lifting Systems motor that won't run, start by connecting a voltmeter between the starter solenoid terminal B and the ground connection on pump TERMINAL D to verify that full battery voltage is present at B. If the voltmeter indicates low voltage for your system (e.g., less than volts DC for a 24 volt system), recharge the batteries. If the voltage is correct, touch a jumper wire to terminals B & D. If the motor runs, inspect the control switch, its connections, and the white wire, correcting any wiring issues or replacing the switch if necessary. If the motor still doesn't run, touch heavy jumper cables to terminals A & B. If it runs now, replace the starter solenoid. If it still doesn't run, the pump motor may need repair or replacement.
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