[ETO_Alpha] Dead Blower on Alpha 87a

[Joe]

The list has been quiet for awhile - I'm hoping someone is out there who 
can make recommendations on a problem I've recently encountered.

My trusty 87a has suddenly developed a fault #21.  Fault code " +o+o+o 
"  is indicated on the front panel.  When I took the case off, nothing 
looked out of the ordinary.  I removed the bottom cover that provides 
access to the tube deck/blower assembly.

When I turned it on, I quickly discovered that the blower does not 
work.  No wonder it faulted.  I have the secondary muffin fan installed 
on the back of the 87a, so the noise masked the fact that the primary 
blower was not working.

I checked the fuses and they are fine.  I replaced the blower (original 
owner) under warranty because the original blower was noisy, and out of 
balance.  When I installed the new blower I also took photos and helped 
rewrite the Replacement Blower Instructions now found on the Alpha Tech 
Tips web page.  That was a few years ago.  It's been absolutely fine 
since then.

My question now is whether the blower is 120VAC or is it fed through a 
lower voltage?  I haven't taken the blower out of the case at this time, 
pending a determination as to whether I should look at a 12 VDC path, 
or, if it's 120VAC, simply remove the blower and order another one.
All thoughts are welcome.......

73

-- 
Joe Hannigan - WDØM
Pagosa Springs, CO

http://www.WD0M.com
http://www.pagosarocks.com
http://www.quiltqueen.net