Lennox furnace error code u5

Lennox furnaces use a random code to indicate that something has gone wrong. The most common issue is a water pump motor breaking down.

Lennox furnace error code u5 indicates that either the water pump motor or your furnace’s combustion chamber might be broken. This can be caused by several problems, including clogged gas lines, defective igniters, worn ignition wires, and incorrect voltage.

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When the furnace shuts down, it sends an error code that contains a lot of information about the problem.

Lennox furnaces have three codes: u1, u2 and u3. The first code usually means that there is a problem with the gas supply and it is possible for you to solve it by the following instruction on the Lennox furnace control panel. The second code is used when there are problems with the motor operation or thermostat unrelated to the gas supply. The third code is used when there are problems with equipment.

If your furnace has an error code u5, there might be an issue with the air handler or heat exchanger, which can be solved by following Lennox’s control panel instructions.

Lennox furnace code u5 is a code caused when the furnace has gone into an unsafe extreme temperature zone.

Lennox furnace error code u5 is a code that indicates that the unit has reached an unsafe extreme temperature zone. You should shut down and contact an authorized Lennox technician as soon as possible.

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