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Pete, Electronic Engineer
Category: Exercise Equipment
Satisfied Customers: 15469
Experience:  Over 16 years of experience installing and repairing electronics.
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My precor 955i has a stop key message and sometimes an error

Customer Question

Hello, my precor 955i has a stop key message and sometimes an error 4 message. Can you help?
JA: Just to clarify, what's the exact make and model of your machine?
Customer: Sry 954i
JA: What troubleshooting have you tried?
Customer: Only plugging it out and plugging it back in
JA: The equipment expert can solve this for you. Anything else you want him to know before I connect you two?
Customer: No that it thanks
JA: OK. Got it. I'm sending you to a secure page on JustAnswer so you can place the $5 fully-refundable deposit now. While you're filling out that form, I'll tell the Fitness Equipment Technician about your situation and then connect you two.
Submitted: 4 months ago.
Category: Exercise Equipment
Expert:  Pete replied 4 months ago.


Please confirm - is this error 4 or error 40?

Customer: replied 4 months ago.
I haven't personally seen this error I was told its 4. The one I have seen is the stop key error
Customer: replied 4 months ago.
Expert:  Pete replied 4 months ago.

Ok, the error 4 doesn't seem to exist as an error code on the 954i.

However the Stop Key message indicates a problem with the emergency stop safety key - have you checked that it is fitted correctly and securely, and isn't loose?

Customer: replied 4 months ago.
The stop key was changed about 6 months ago. When I get home I'll check again to see if I can get the other error to come up. Do you have a direct email address?
Expert:  Pete replied 4 months ago.

We are only allowed to communicate through the JustAnswer question page.

Customer: replied 4 months ago.
That's fine. I'll send a message when I get home and let you know what pops up
Expert:  Pete replied 4 months ago.

You can reply back here any time that is convenient for you.

Customer: replied 4 months ago.
I'm not getting the other error message only the stop key error. Would you suggest that I change the stop key once more?
Customer: replied 4 months ago.
if so could you please send me a link for an online store that I can purchase the part?
Expert:  Pete replied 4 months ago.

First, you could try bypassing the stop key - if the machine works ok then this confirms that it has a fault and needs to be replaced.

Expert:  Pete replied 4 months ago.

You can purchase the part from

Customer: replied 4 months ago.
How do I bypass the stop key?
Expert:  Pete replied 4 months ago.

The stop key can be bypassed by shorting out the switch wires.