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Science Forum Index » Electronics - Repair Forum » Toaster oven thermostat
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Message |
| badgerboy |
 Posted: Tue Feb 20, 2007 11:03 am |
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Guest
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Just for fun, I'd like to fix my old toaster oven. It was not very
old and in very fine condition except for a burned out thermostat.
Its a Magic Chef model ctb650m, and the thermostat is a mechanical
type, with the following written on it:
Keensound 125V 12A KS198 1300
I have written to the MagicChef address on the user manual but so far
received no reply. I think they may be out of the business. I wonder
if there are any suggestions on how to obtain a replacement or
equivalent thermostat. Even a similar one that I could rig in, even
if temperatures were off a bit, would be fine.
Thanks, Guy |
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| Homer J Simpson |
| Posted: Tue Feb 20, 2007 4:18 pm |
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"badgerboy" <badgerboy@wilkes.net> wrote in message
news:1171983836.374197.191090@j27g2000cwj.googlegroups.com...
Quote: Just for fun, I'd like to fix my old toaster oven. It was not very
old and in very fine condition except for a burned out thermostat.
Its a Magic Chef model ctb650m, and the thermostat is a mechanical
type, with the following written on it:
Keensound 125V 12A KS198 1300
Keensound Industries Limited
Established in 1987, Keensound is a manufacturer and supplier of
thermostats. Our main products are thermostats and metal parts for household
electrical appliances such as steam irons, waffle makers, water heaters,
cooking boilers and air-conditioners.
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| Sam Goldwasser |
| Posted: Tue Feb 20, 2007 8:22 pm |
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"badgerboy" <badgerboy@wilkes.net> writes:
Quote: Just for fun, I'd like to fix my old toaster oven. It was not very
old and in very fine condition except for a burned out thermostat.
Its a Magic Chef model ctb650m, and the thermostat is a mechanical
type, with the following written on it:
Keensound 125V 12A KS198 1300
I have written to the MagicChef address on the user manual but so far
received no reply. I think they may be out of the business. I wonder
if there are any suggestions on how to obtain a replacement or
equivalent thermostat. Even a similar one that I could rig in, even
if temperatures were off a bit, would be fine.
What happened to the thermostat?
--- sam | Sci.Electronics.Repair FAQ: http://www.repairfaq.org/
Repair | Main Table of Contents: http://www.repairfaq.org/REPAIR/
+Lasers | Sam's Laser FAQ: http://www.repairfaq.org/sam/lasersam.htm
| Mirror Sites: http://www.repairfaq.org/REPAIR/F_mirror.html
Important: Anything sent to the email address in the message header above is
ignored unless my full name AND either lasers or electronics is included in the
subject line. Or, you can contact me via the Feedback Form in the FAQs. |
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| badgerboy |
| Posted: Wed Feb 21, 2007 10:21 am |
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On Feb 20, 7:22 pm, Sam Goldwasser <s...@plus.seas.upenn.edu> wrote:
Quote: "badgerboy" <badger...@wilkes.net> writes:
Just for fun, I'd like to fix my old toaster oven. It was not very
old and in very fine condition except for a burned out thermostat.
Its a Magic Chef model ctb650m, and the thermostat is a mechanical
type, with the following written on it:
Keensound 125V 12A KS198 1300
I have written to the MagicChef address on the user manual but so far
received no reply. I think they may be out of the business. I wonder
if there are any suggestions on how to obtain a replacement or
equivalent thermostat. Even a similar one that I could rig in, even
if temperatures were off a bit, would be fine.
What happened to the thermostat?
The contact on the bimetallic strip was completely burned thru, and
the strip itself seems to have been deformed from heating so that it
no longer makes contact with the other side of the switch, at any
temperature setting. Do you think this can be bent back into shape
and fixed?
Thanks, Guy |
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| Homer J Simpson |
| Posted: Wed Feb 21, 2007 4:26 pm |
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"badgerboy" <badgerboy@wilkes.net> wrote in message
news:1172067659.391342.136800@v33g2000cwv.googlegroups.com...
Quote: What happened to the thermostat?
The contact on the bimetallic strip was completely burned thru, and
the strip itself seems to have been deformed from heating so that it
no longer makes contact with the other side of the switch, at any
temperature setting. Do you think this can be bent back into shape
and fixed?
Not a good idea. I'd try to find a replacement or another thermostat that
could be made to fit.
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| Sam Goldwasser |
| Posted: Wed Feb 21, 2007 8:18 pm |
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"badgerboy" <badgerboy@wilkes.net> writes:
Quote: On Feb 20, 7:22 pm, Sam Goldwasser <s...@plus.seas.upenn.edu> wrote:
"badgerboy" <badger...@wilkes.net> writes:
Just for fun, I'd like to fix my old toaster oven. It was not very
old and in very fine condition except for a burned out thermostat.
Its a Magic Chef model ctb650m, and the thermostat is a mechanical
type, with the following written on it:
Keensound 125V 12A KS198 1300
I have written to the MagicChef address on the user manual but so far
received no reply. I think they may be out of the business. I wonder
if there are any suggestions on how to obtain a replacement or
equivalent thermostat. Even a similar one that I could rig in, even
if temperatures were off a bit, would be fine.
What happened to the thermostat?
The contact on the bimetallic strip was completely burned thru, and
the strip itself seems to have been deformed from heating so that it
no longer makes contact with the other side of the switch, at any
temperature setting. Do you think this can be bent back into shape
and fixed?
The strip could be bent back into shape but it would be difficult to
replace the contact(s) reliably.
But my concern would then be that something caused it, like a
failed heating element shorting out as it died. The contacts on toaster
oven thermostats normally last the life of the oven.
--- sam | Sci.Electronics.Repair FAQ: http://www.repairfaq.org/
Repair | Main Table of Contents: http://www.repairfaq.org/REPAIR/
+Lasers | Sam's Laser FAQ: http://www.repairfaq.org/sam/lasersam.htm
| Mirror Sites: http://www.repairfaq.org/REPAIR/F_mirror.html
Important: Anything sent to the email address in the message header above is
ignored unless my full name AND either lasers or electronics is included in the
subject line. Or, you can contact me via the Feedback Form in the FAQs. |
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| badgerboy |
| Posted: Thu Feb 22, 2007 9:15 am |
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On Feb 21, 7:18 pm, Sam Goldwasser <s...@plus.seas.upenn.edu> wrote:
Quote: "badgerboy" <badger...@wilkes.net> writes:
On Feb 20, 7:22 pm, Sam Goldwasser <s...@plus.seas.upenn.edu> wrote:
"badgerboy" <badger...@wilkes.net> writes:
Just for fun, I'd like to fix my old toaster oven. It was not very
old and in very fine condition except for a burned out thermostat.
Its a Magic Chef model ctb650m, and the thermostat is a mechanical
type, with the following written on it:
Keensound 125V 12A KS198 1300
I have written to the MagicChef address on the user manual but so far
received no reply. I think they may be out of the business. I wonder
if there are any suggestions on how to obtain a replacement or
equivalent thermostat. Even a similar one that I could rig in, even
if temperatures were off a bit, would be fine.
What happened to the thermostat?
The contact on the bimetallic strip was completely burned thru, and
the strip itself seems to have been deformed from heating so that it
no longer makes contact with the other side of the switch, at any
temperature setting. Do you think this can be bent back into shape
and fixed?
The strip could be bent back into shape but it would be difficult to
replace the contact(s) reliably.
But my concern would then be that something caused it, like a
failed heating element shorting out as it died. The contacts on toaster
oven thermostats normally last the life of the oven.
Thanks for the input,
Well, an ohmmeter test and operational test of the elements seem to
show they are good. Each pair comes out to about 15 ohms if I
remember, and applying power to the elements causes them to heat up
and glow red.
I looked at the website suggested by Homer, and Keensound doesn't show
this model thermostat among their current products. I sent them an
email asking about it and possible distributors, but haven't received
a reply yet. I will let you know what I find out.
Thanks, Guy |
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