I watched the Tech do his thing. Tech closed the spark gap on igniter a
little. He used some sort of go no/go gauge to bend electrodes. Also he
bent up the electrodes so that they would be more likely to make contact
with igniter springs and therefore eliminate one set of arcing contacts.
Tightened AC wire connections. It reduced the problem, but did not
From: David Robbins
Sent: Sunday, December 01, 2013 10:45 AM
To: Bob@N2SCJ.net ; email@example.com
Subject: RE: [RFI] Interference from Oil Burner Ignitor
Tell them it is interfering with your AM radio reception... you can suspect
that maybe a ground wasn't reconnected, or maybe a bolt isn't holding it
tight to the case, or maybe a dirty connection, or even possibly a cut wire
or a hv wire too close to some metal that is arcing. In any case it
shouldn't interfere, especially to AM radio or an audio system.
David Robbins K1TTT
AR-Cluster node: 145.69MHz or telnet://k1ttt.net
From: RFI [mailto:firstname.lastname@example.org] On Behalf Of Bob@N2SCJ.net
Sent: Sunday, December 01, 2013 14:27
Subject: [RFI] Interference from Oil Burner Ignitor
I recently had the igniter fail on my oil burner. The replacement was an
Allanson 2275-U as per the bill. The interference comes through over top of
a station on the AM Broadcast band (KYW-1060). Its also getting into one of
my FM rigs and/or my audio distribution system. I can figure out which one
it is as soon as I can walk again (burst Baker's cyst). I can tell it’s the
heater as I hear it start and at same time the tick, tick, tick, tick, sound
comes over the AM radio. The noise lasts for about a minute and burner
continues to fire. There is a logic circuit built into the heater that
deactivates the igniter once circuit is sure the fire is burning. I believe
that is why the noise stops before burner shuts down.
The old igniter was RF quiet when it was working. Probably even quieter
once it failed.
This is a new install done on 11/27. I have not paid the bill yet, so I
have some leverage with the service company. I think the igniter would be
classified as an un-intentional radiator. Any thoughts on how to proceed?
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