How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Phil Your Own Question
Phil, Mechanical Engineer
Category: HVAC
Satisfied Customers: 5648
Experience:  Retired HVAC/ Electrical & Boiler contractor. Industrial
Type Your HVAC Question Here...
Phil is online now
A new question is answered every 9 seconds

I have two error codes on my Rheem Thermostat. A026_F and

Customer Question

I have two error codes on my Rheem Thermostat. A026_F and A058_F. I'm not sure what either means. I have Rheem AC, hot water heater and HVAC. I also have my humidifier hooked up to the thermostat.
Submitted: 2 months ago.
Category: HVAC
Expert:  Phil replied 2 months ago.

Hello, welcome to Just Answer.

I need the full model number of the Rheem furnace/ air handler... it is inside the furnace near the gas valve if you have a gas fired furnace.. on a tag that shows the BTU rating, serial number and model number.

Meantime tell me if the system works or not. We can go from there.