Trane THT2774 Thermostat

How to make sure the heater is on and working. We need instructions on this thermostat. This is a restaurant and we arenu2019t sure how to turn on the heater

Unfortunately, we do not have the user manual for this part. For further assistance, kindly reach out to Trane tech support. Thank you for your understanding.

My thermostat displays 0P instead of the temperature and will not operate the unit

You should consider hiring a licensed contractor for troubleshooting.

How do I turn on the heat

Sorry that we do not have the user manual for that. Please contact Trane tech support for further assistance.