Re: hair dryer fuse

From: Kevin R (dontemailme_at_ntlworld.com)
Date: 01/21/05 

Date: Fri, 21 Jan 2005 18:31:59 GMT

"Sam Goldwasser" <sam@saul.cis.upenn.edu> wrote in message
news:6wpszyiv5e.fsf@saul.cis.upenn.edu...
> electricitym@yahoo.com writes:
>
>> Martik wrote:
>> > Fuse is rated 172C, all I can find is 167C or 187C. Which one should
>> I
>> > choose?
>>
>> Martik:
>> As the James Sweet reply post correctly suggested, install the l67C
>> lower temperature rated thermal fuse.
>> As with any fuse, NEVER substitute a higher value than the OEM value or
>> bypass it, it is there for a very good safety reason... it is not
>> worth the risk; if you do you are literally playing with fire.
>> electricitym
>
> And, if it blows again, toss the dryer. A second failrue would almost
> certainly NOT be because the fuse is a few degrees too low. Something
> else is intermittent or has failed completely like the thermostat.
>
what hair dryer has a thermostat? none of the ones I have worked on, the
different temperature settings are usually done by putting the heaters in
different combination series /parallel and shorting out sections, speed of
the motor is also done by putting a low voltage motor across different
amounts of the heater element, usually you have a thermal bi metal cut out
backed up by a thermal fuse, if the thermal fuse goes I would look for a
stuck cut out and a blocked intake grill