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Aug 11, 2016Find the answers to you troubleshooting questions here. How can I safely dispose of my mercury thermostat if I buy a newer programmable control?
80MGF?11 model units are equipped with the Lennox. SureLight All specifications in this manual are subject to change. Procedures field conversion is required when the unit is installed in the VIII SureLight Control Troubleshooting 40.
A Lennox circuit board controls the main functions of an HVAC unit. It comes equipped with two LED lights that help you troubleshoot what may be wrong with
sists of a Lennox control board (figure1) and hot surface ignitor . Figures 2 and lights for trouble shooting (see table 1 for diagnostic codes) and two accessory