Mailing List flyrotary@lancaironline.net Message #67998
From: Finn Lassen finn.lassen@verizon.net <flyrotary@lancaironline.net>
Subject: Re: [FlyRotary] Relay looking bad…
Date: Mon, 19 Jan 2026 12:01:21 -0500
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Strange looking. Can't see if the damage extends to innards of the relay. Could be just a soldering iron having brushed over the relay enclosure. I'd be more interested in copper traces on the PCB to the relay. Corrosion? Typically the copper traces are covered by a protective film except where components are soldered to them. You could try to clean the area with alcohol and inspect closely.

But, yes, could be the problem. I think those relays are for the injectors.

Finn

On 1/19/2026 10:54 AM, DOUGLAS LOMHEIM dlomheim@aol.com wrote:
I swapped the A to B on my Renesis EC-2, and still no luck on starting, and now it wouldn’t start on either side.  Pulled the board out to swap back and got a light to check solder joints for possible cracks and found this relay with a chunk of plastic missing which doesn’t look normal to my untrained eyes.  Could this possibly cause my issue?  I assume a relay of done type is used to switch from A to B and back…?  Thx

Doug


Sent from my iPhone

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