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DeWalt DW621's electronic unit failure

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Forum topic by mikfed posted 493 days ago 882 views 0 times favorited 5 replies Add to Favorites Watch
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mikfed

2 posts in 494 days


493 days ago

Hi everybody!

First of all, I would like to point out that English isn’t my native language so please excuse my possible mistakes.

Yesterday my DW621 wouldn’t turn on. I removed some covers to check for loose contacts, dust, etc. Nothing helped. Then I took two pieces of wire and connected th on/off switch directly to motor terminals. The router started working but as you understand without speed regulator, soft start function and the function of maintaining constant speed under load.

The question is: do I do any harm to my router by using it with this quick repair solution?

Thanks in advance for any answers.\


5 replies so far

View ajosephg's profile

ajosephg

1850 posts in 2187 days


#1 posted 493 days ago

I can’t think of anything that would harm your router under those conditions.

In reality you most likely would always run the router at its maximum speed anyway, because the slower speeds are only for very large bits. In my opinion the soft start and speed regulator are not essential in any case.

-- Joe

View NiteWalker's profile

NiteWalker

2709 posts in 1202 days


#2 posted 493 days ago

After the magnetic rings in my dewalt 618’s bit the dust I was left with single (full) speed routers and have been using one of them this way since. No issues.

-- He who dies with the most tools... dies with the emptiest wallet.

View Marty5965's profile

Marty5965

158 posts in 571 days


#3 posted 493 days ago

I believe the soft start and variable speed is controlled by an electronic module that is user replacable. That may be your problem. You can order a new one from Dewalt but it may not be cost effective if your router is old. I wouldn’t think you would harm your router specifically but you would lose the safeguards that the variable speed module provides. You could ask over on the dewalt router forum.

-- Marty, Columbus, OH, learning every day....

View Loren's profile

Loren

7390 posts in 2273 days


#4 posted 493 days ago

That router is an old Elu design. It’s one of the better mid-sized
plunge routers out there. The speed control is known to
give out on it.

-- http://lawoodworking.com

View mikfed's profile

mikfed

2 posts in 494 days


#5 posted 491 days ago

Thanks for the comments!

I have called to my local service outlet and ordered this module.
They promised to deliver it for a quarter of the price I payed for the router.
Meanwhile I continue working with it.

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