Altrax SPM-500 - Pre-charge resistor error code

chandlerm63 · 09-12-2019, 10:51 AM

Having the exact same issue. What ultimately was the solution? I also bought mine from scottyb. Did you try a new resistor? My controller is the SR-500.

Fairtax4me · 09-12-2019, 11:44 AM

Quote:

Originally Posted by chandlerm63

Having the exact same issue. What ultimately was the solution? I also bought mine from scottyb. Did you try a new resistor? My controller is the SR-500.

Email Scotty and ask him directly. He'll make it right I'm sure.

chandlerm63 · 09-12-2019, 02:09 PM

Thanks!! I am sure he will!!

scottyb · 09-12-2019, 06:12 PM

The problem with bypassing the solenoid as a diagnostic step is you bypass the whole low amperage control side of the system. There could be a problem in the solenoid activation circuit or a problem with the solenoid itself.
Determine if the solenoid is being activated. There should be 48v between the 2 small terminals each time the go pedal is depressed. If no, determine if the + side or the - side is absent.
Additionally you can use a test wire (usually 3-6 ft of 16g with alligator clips) to supply the missing current to see the solenoid activate

09-12-2019, 10:51 AM	#11
chandlerm63 Not Yet Wild Join Date: Jul 2019 Location: KANSAS CITY Posts: 2	Re: Altrax SPM-500 - Pre-charge resistor error code Having the exact same issue. What ultimately was the solution? I also bought mine from scottyb. Did you try a new resistor? My controller is the SR-500.

09-12-2019, 02:09 PM	#13
chandlerm63 Not Yet Wild Join Date: Jul 2019 Location: KANSAS CITY Posts: 2	Re: Altrax SPM-500 - Pre-charge resistor error code Thanks!! I am sure he will!!

09-12-2019, 06:12 PM	#14
scottyb Happy Carting Join Date: Dec 2007 Location: Southern California Posts: 73,402	Re: Altrax SPM-500 - Pre-charge resistor error code The problem with bypassing the solenoid as a diagnostic step is you bypass the whole low amperage control side of the system. There could be a problem in the solenoid activation circuit or a problem with the solenoid itself. Determine if the solenoid is being activated. There should be 48v between the 2 small terminals each time the go pedal is depressed. If no, determine if the + side or the - side is absent. Additionally you can use a test wire (usually 3-6 ft of 16g with alligator clips) to supply the missing current to see the solenoid activate

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