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Lennox Error Code E132: Device control software fault (Air Handler)

Updated · by Aurora Star Tech Inc.

Lennox error code E132 on a air handler means: Device control software fault. It is also called Lennox diagnostic code E132.

High severityAir Handler

Homeowner? What Lennox code E132 means for you

Call a technician Your air handler is reporting: Device control software fault. The air handler has locked out or cannot run properly. One reset is fine; if the code comes back, it needs a licensed technician to find the cause.

Safe things you can check yourself

  • Check the thermostat: right mode (Heat or Cool), set a few degrees past room temperature, and fresh batteries if it uses them.
  • Make sure the unit has power: its on/off switch (often looks like a light switch near the unit) is ON and the breaker in the electrical panel is not tripped.
  • Look at the air filter. If it is grey and clogged, replace it; a blocked filter causes many shutdowns.
  • Try one reset: turn the power off for 30 seconds, then back on. If the code comes back, stop resetting and call a technician.

Call (647) 657-2977Book a service call

Licensed technicians serving Vaughan, Toronto and the GTA.

What does Lennox error code E132 mean?

The component control software is corrupted. S30/S40 thermostat alert code 132 (shown as E132 on the unit control display).

Applies to: Lennox communicating air handlers and EIM-equipped indoor units in S30/S40 smart thermostat systems

Common causes of Lennox code E132

  • Corrupted firmware on the control
Safety: Gas, electrical and refrigerant work must be done by a licensed technician. Turn off power and gas before servicing, never bypass a safety control, and always follow the manufacturer's manual for your exact model.

Other Lennox Air Handler codes

CodeMeaning
E117Poor ground
E120Unresponsive device
E124Thermostat lost communication to smart hub
E125Control hardware problem
E126Control internal communication problem
E130Configuration jumper missing
E180Outdoor temperature sensor problem
E201Blower motor communication fault
E202Blower motor and unit size mismatch
E203Invalid unit size code
E292Blower motor start fault
E295Blower motor over temperature

All Lennox Air Handler error codes →

Lennox code E132: homeowner questions

What does Lennox code E132 mean?

Device control software fault. The component control software is corrupted. S30/S40 thermostat alert code 132 (shown as E132 on the unit control display).

Is it safe to keep using my air handler with code E132?

It depends on the cause. The air handler has locked out or cannot run properly. One reset is fine; if the code comes back, it needs a licensed technician to find the cause.

Can I reset Lennox code E132 myself?

You can try one reset (power off for 30 seconds, then on). If Lennox code E132 comes back, the cause is still there and a licensed technician should check it.

Who can fix Lennox code E132 near me?

Aurora Star Tech Inc. repairs Lennox air handlers in Vaughan, Toronto and across the GTA. Call (647) 657-2977 or book a service call online.

Troubleshooting guides

Source: Lennox Residential Communicating Systems Alert Code Guide (V2) 100017 (3/2023), Table 2 Alert Codes and Troubleshooting, p.18. Written in our own words as a summary; always check the original manual.

General guidance for qualified technicians. The manufacturer's installation and service manual and local codes always take priority. Aurora Star Tech is not affiliated with, endorsed by or sponsored by any equipment manufacturer; brand and model names are used only to identify equipment and belong to their owners.

Air Handler Emergency

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