Troubleshooting By Error Code; Ts01-Idu; Ts01-Odu - Lennox MCB Series Service Manual

4. Troubleshooting by Error Code

4.1. TS01-IDU

Description: Indoor PCB main chip is not receiving feedback from the EEPROM chip.
Possible Affected Components: Outdoor PCB
Troubleshooting and Repair:
Remarks: A read-only memory that can be erased and reprogrammed using a pulsed voltage.
NOTE:
On various models the indoor PCB can not be removed separately. In this situation the entire indoor electric
control box should be replaced.

4.2. TS01-ODU

Description: Outdoor PCB main chip is not receiving feedback from the EEPROM chip or compressor driven chip.
Possible Affected Components: Outdoor PCB
Troubleshooting and Repair:
Remarks: A read-only memory that can be erased and reprogrammed using a pulsed voltage.
NOTE: On various models the outdoor PCB can not be removed separately. In this situation the entire outdoor electric
control box should be replaced.
Shu o the power supply for
two minutes.
Shut o the power supply
for two minutes.
Replace the outdoor main PCB
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