[Elecraft] KPA1500 fans not working in auto mode

[Dick Dievendorff]

43 degrees C is below the first turn-on speed for 160 thru 10 meters.

Fan turn-on and turn-off speeds are in the KPA1500 firmware release notes for version 1.87:

⦁	Changed temperatures for fan speeds:
⦁	On 160 thru 10 meters, fans increase speed at 50, 70, 80, 87, and 95 degrees, and slow at 40, 55, 75, 81, and 88 degrees.
⦁	On 6 meters the fans increase speed at 40, 50, 65, 80, and 90 degrees and slow at 35, 41, 51, 66, and 81 degrees.

73 de Dick, K6KR

-----Original Message-----
From: elecraft-bounces at mailman.qth.net <elecraft-bounces at mailman.qth.net> On Behalf Of NK6A-Don Minkoff
Sent: Monday, March 30, 2020 09:14
To: Elecraft <Elecraft at mailman.qth.net>
Subject: [Elecraft] KPA1500 fans not working in auto mode

Has anyone had a problem with the fans not turning on automatically in the KPA1500?

I realized that operating today in WPX that the  temp was reading over
43 c and no fans.  Manually turned them on.  Reloaded firmware and still no fans when getting over 40 deg c.  Ser no. 316. Ver. 2.38.

I'll have to wait for Elecraft support but if anyone else has had this problem I would be interested in the fix.  Temp sensor?

--
Don Minkoff
NK6A

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