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<blockquote data-quote="Rob Timmerman" data-source="post: 124808" data-attributes="member: 172">Re: stuck at the check the fuse stageSo there&#039;s a reason that the unit says right on it &quot;refer servicing to qualified service personnel&quot;...On the other hand, you have learned a couple valuable lessons from this exercise:&nbsp;&nbsp; * Don&#039;t replace or reset protection devices (e.g. fuses) without knowing WHY they failed.&nbsp; Sure, fuses can fail from vibration, but they can also fail because of actual problems downstream.&nbsp; It&#039;s good practice to examine glass fuses for indications of why they failed prior to replacement.&nbsp;&nbsp; * If you are replacing protection circuitry, make sure you replace it with an identical unit.&nbsp; I find it hard to believe that a 1A slow blow fuse let enough amp-seconds through to trip an upstream circuit breaker likely rated at &gt;13A.&nbsp;&nbsp; * Blindly bypassing or resetting protection circuitry can lead to further damage to the unit, and can also lead to injury.&nbsp; And can also be expensive.If I were in your position, I&#039;d be taking that unit to a local bench tech for diagnosis and repair.&nbsp; I&#039;d also ask the tech to replace at least the insert on the fuse holder, because it&#039;s pretty beat up from failed attempts to open it.</blockquote>

[QUOTE="Rob Timmerman, post: 124808, member: 172"] Re: stuck at the check the fuse stage So there's a reason that the unit says right on it "refer servicing to qualified service personnel"... On the other hand, you have learned a couple valuable lessons from this exercise: * Don't replace or reset protection devices (e.g. fuses) without knowing WHY they failed. Sure, fuses can fail from vibration, but they can also fail because of actual problems downstream. It's good practice to examine glass fuses for indications of why they failed prior to replacement. * If you are replacing protection circuitry, make sure you replace it with an identical unit. I find it hard to believe that a 1A slow blow fuse let enough amp-seconds through to trip an upstream circuit breaker likely rated at >13A. * Blindly bypassing or resetting protection circuitry can lead to further damage to the unit, and can also lead to injury. And can also be expensive. If I were in your position, I'd be taking that unit to a local bench tech for diagnosis and repair. I'd also ask the tech to replace at least the insert on the fuse holder, because it's pretty beat up from failed attempts to open it. [/QUOTE]

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