Are you sure that it has a variable speed fan? My 5372A has a pretty quiet fan and I have never tried to change it. I am assuming that it uses the same 117V fan as the 5371A. That thermal switch may be a power supply shutdown.
I have a couple of 5371A's that are a different matter. Utterly obnoxious fans. I put in much quieter 12V fans. I powered them with a separate wall wart module mounted inside the box with velcro. I used Nidec Beta V TA450DC fans rated at 250 mA. Again, I checked the before/after thermal environment and found no changes. I have some even quieter NMB "Smartfans" with a thermal sensor. They draw around 150 mA until the temp reaches 35C, then they kick in at 750 mA and scream bloody murder. _________________________________________________________________ Hotmail: Trusted email with powerful SPAM protection. http://clk.atdmt.com/GBL/go/201469227/direct/01/ _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
