At Fixya.com, our trusted experts are meticulously vetted and possess extensive experience in their respective fields. Backed by a community of knowledgeable professionals, our platform ensures that the solutions provided are thoroughly researched and validated.
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
The t-stat needs a common and a hot. I know that is simple but it doesn't hurt to ask. Do you have the 24 volts needed to operate the t-stat? If you have 18 volts that may affect the lights.
homeappliance.manualsonline.com > ... > Carrier Thermostat Appliance manuals and free pdf instructions. Find the user ... Carrier 33CS450-01 Thermostat User Manual. Page 1 ... Carrier Corporation 04/06. Use with most ...
Does it have a battery backup in the unit? If so replace them. If its an older model used frequently oil from your hands gets behind the buttons which causes intermittent connections and can cause display error. Remove the unit, carefully open it up and clean all contact surfaces with q-tip and a bit of rubbing alcohol. May solve your problem. While your at it make sure all wire connections are tight. Mark all wire locations during disassembly to make sure they go back in the right place.
I know it sounds simple but the batteries are probably in the wrong direction. If they are correctly installed and fresh you will usually get a display.
Blank screen sounds like a fried thermosat. Abrupt outages can affect certain types of thermostats. Make a jumper wire and jump across R and G. See if you get any action from anywhere. If a fan or compressor kicks in you know you have a burned out thermosat...
×