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McElroy Fusion Discussion
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 Post subject: error message A977
PostPosted: June 20th, 2012, 10:49 am 
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Joined: June 20th, 2012, 10:44 am
Posts: 1
what should we check when error message A977 is displayed during joint cycle on a TS 500 auto


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 Post subject: Re: error message A977
PostPosted: June 26th, 2012, 6:50 am 
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Joined: December 29th, 2009, 10:12 pm
Posts: 103
Location: Tulsa, Oklahoma
This message is displayed during the fuse cycle if the TracStar could not hold the fusion pressure. It could be due to pressure fluctuation in the hydraulic system beyond the control of the electronics, or the fema valve or control circuit could not drive the valve to maintain the correct fusion pressure.

I have some pretty specific instructions on how to go about troubleshooting this issue, I will attempt to email them to you directly.

John


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