Lennox 51M34. Operation Manual. If less than 70 ohms, check for shorted wires. Shop LennoxPROs.com huge selection of HVAC equipment, parts, and supplies. Lennox Thermostat Troubleshooting. That’s why we offer a collection of resources that make it as easy as possible for you to get the answers and support you need. Thermostat Lennox Merit 51M37 Operation Manual. Common Instruction. Make sure to download the correct Lennox thermostat manual for your model. Lennox … Home-Tech is SW Florida's leading appliance and ac repair company. Lennox 51M37 Merit thermostats are designed for use in systems with gas or oil boilers, floor heating systems, electric heating or zone control. Lennox X4146 thermostat troubleshooting I - Answered by a verified HVAC Technician. www.home-tech.com or call 800-800-8356. Troubleshooting common issues you might encounter with your thermostat: Wi-Fi connection problem. If a Lennox heat pump is not working properly, reset the system before contacting technical support. How to troubleshoot your thermostat. How do I enable my wireless connection to work with the iComfort Wi-Fi thermostat? Steps vary per model, sometimes even models of the same series. Touchscreen thermostat (4 pages) Merit series 5/2 day programmable thermostat (54 pages) Thermostat Lennox 51M34 5/2 Operation Manual. Go online for easy ordering and product availability for your convenience. If the pump is off, it … ©2015 Lennox Industries Inc. Dallas, Texas, USA iComfort Wi-Fi® Web and Mobile Apps iComfort Wi-Fi® Thermostat THIS MANUAL MUST BE LEFT WITH THE HOMEOWNER We use cookies to give you the best possible experience on our website. To find the dealer nearest you, call 1-800-9Lennox or visit the Lennox Dealer Locator. My unit has completely shut off and the screen that displays the temperature is blank. Wireless Connection. Step 1 Check the control panel of the Lennox heat pump. If above 90 ohms, check and repair wiring, splices or other wiring defects that may be causing the excessive resistance. Frequently Asked Questions. Installation should only be performed by an authorized Lennox dealer. Check engineering data to set the appropriate programmable digital thermostat settings. 51M37 Manuals. Perfect comfort is something we want you to experience long after you’ve purchased your Lennox ® product. 5/2 day programmable thermostat (8 pages) Thermostat Lennox ComfortSense 5000 Series Brochure. To save money on repair services, restart your heat pump before contacting technical support. ComfortSense® 3000 (CS3000) 5-2 Day Programmable Thermostats - (51M34, 51M35 and 51M37) ComfortSense® 3000 (CS3000) Commercial 5-2 Day Programmable Thermostats (C0STAT05FF1L) (11Y05) ComfortSense® 3000 (CS3000) Electronic Non-Programmable Thermostats - … I have a Lennox Model 51M33. This is a common issue with your Wi-Fi or smart thermostats.