Lennox Heating & Cooling - Recent Questions, Troubleshooting & Support
Rewire a Lennox 1.5 ton heat pump to straight cool with heat strip.
To rewire a Lennox 1.5 ton heat pump to straight cool with heat strip, you will need to reconfigure the thermostat wiring. Here are the steps:
Turn off the power to the heat pump unit.
Remove the thermostat cover to access the wiring terminals.
Take a picture of the current wiring configuration for future reference.
Remove the wires from the current terminals.
Connect the yellow wire to the Y terminal.
Connect the green wire to the G terminal.
Connect the white wire to the W2 terminal.
Connect the red wire to the R terminal.
Cap off the blue wire as it is not needed for this configuration.
Connect the orange wire to the W1 terminal.
Turn the power back on to the unit.
Test the system to ensure it is functioning correctly.
Please note that these steps are provided as a general guideline and may vary depending on the specific model of your thermostat and heat pump unit. Always refer to the manufacturer's instructions and consult a certified HVAC technician if you are unsure about any steps in the process.
Furnace won't ignite sometimes
I have experienced that exact same problem on a different brand heater. I had to replace the control board to solve the problem. Can you access the control board on the furnace unit. If so then there should be a blinking red LED bulb flashing a number pattern to tell you where the problem is.
Furnace computer won't let furnace light
What is the model number? I have an SLP98 (installed on 11/29/2011).... and if I take the cover off the front of the furnace the panel that has the fancy "Lennox" badge on it) you will see two clear round windows about the size of a half dollar (one high on the furnace box and one lower on the blower box.) If you look downward into the window on the blower box you can see a red LED display that will sometimes flash error codes like E228 (one character at a time). If your model has something like this, let me know. I've done some DIY fixes recently out of necessity....and their easy.....and several technicians confessed they didn't know much, if anything, about the newer high effieciency Lennox gas furnaces.
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