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Major Appliances/Thermostat for old Westinghouse OLA-24-4



We recently moved into a 1959 house with a Westinghouse OLA-24-4 wall oven.  The oven generally works ok but the thermostat is always 50 degrees off (it gets 50 degree hotter than what the dial reads).  We've been using a cheap oven thermometer to monitor the temp when we use the oven, but we'd like to see if replacing the original thermostat would fix the problem.

1) Does replacing the thermostat sound like it would do the trick, or might there be something else wrong, in your opinion?
2) If the thermostat is indeed the culprit, any idea if there is a compatible replacement part out there?

Thanks for your time!


Replacing the thermostat might take care of the problem if there is one.  50 degreees is not that bad.  Older units 50 degrees was within range.  Not like the units today which are more accurate.....within 30 degrees.  How are you measuring the temperature and with what type of thermometer.  When are you actually recording the temperature?  You should be checking the second the indicator light goes off. LEt me know.

Part number for your thermostat is Q25491 which crosses to a 5300162222.....for the thermostat.


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Eric Campion


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