What It Means
- High Pressure Lockout
Lennox Packaged Unit
Lennox Error Code DS2 Green ON, DS1 Red OFF
Packaged Unit: Packaged HVAC (outdoor)
Causes & actions from Lennox
How it shows
- cmc1 ds2 ds1 led: DS2 Green ON, DS1 Red OFF (ds1: off, ds2: on)
This manual entry does not list further causes or actions.
Applicable models & manual sources
- ZCD036
High Pressure Lockout
ZCD036, ZCD048, ZCD060, ZCD074, ZGD036, ZGD048, ZGD060, ZGD074
Disclaimer: This information is for general reference. Code wording and instructions vary by model. Always follow the service manual for your exact unit.
What should you check next?
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