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airheatman, HVAC Technician
Category: HVAC
Satisfied Customers: 9923
Experience:  Furnace, A/C and heat pump specialist.
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I have a Linstat Setback programmable thermostat,serial #

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I have a Linstat Setback programmable thermostat,serial # 038731, model # TH101 A-40. It runs electric heaters on 240 vac. Somehow, it switched over to Celcius display and I can't figure out how to get it back into Farenheit display. Cannot find the manual as the thermostat is many years old. Can you help me?
JA: How old is the system in question? And have you consulted an electrician yet?
Customer: About 15 years old, and no I have not.
JA: Do you plan on doing the work yourself?
Customer: Yes, if it's just programming involved. I can also remove the thermostat from the wall if that is necessary.
JA: Anything else we should know to help you best?
Customer: I have all information and any numbers you need from the back of the thermostat. I thought there might be a switch in back but couldn't find one.

Let me see if I have access to this manual

Found the manual

Temperature displayed in °C or °F. You can choose to display the temperature in Celsius (°C) or in Fahrenheit (°F). Your thermostat has been preset in Celsius. To change the display setting in °F, press and release the RESET button while the MODE button is pushed in.

Let me know if this works

Here is a link to manual also.PLease verify this is correct manual


airheatman and other HVAC Specialists are ready to help you
Customer: replied 1 year ago.
Your instruction worked. Thank you. I cannot seem to access your link to the manual.
Customer: replied 1 year ago.
I know that our business has concluded, but is there any way I can access the manual?
The link you sent did not work.

Let me see if I can upload it for you