Lennox Furnace Error Code DS1 OFF / DS2 Fast Flash
High pressure switch open; OR blocked inlet/exhaust vent; OR high pressure switch closed prior to activation of combustion air inducer. (G32V-5 units)
SourceLennox G32V Series Furnace - Service ManualTable 21, Page 25
The full DS1 OFF / DS2 Fast Flash procedure
Step 1 is visible so you can confirm you are on the right page. The remaining steps, the ones that tell you whether to actually replace a part, unlock with any pass.
SourceLennox G32V Series Furnace - Service ManualTable 21, Page 25
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Where this code is documented
6 manuals in the MyPros+ library document this code for Lennox furnace.
Models covered by the manuals that document this code
- C33-18A-2F
- C33-24A-2F
- C33-30A-2F
- C33-36A-2F
- G32-1
- G32-2
- G32-3
- G32-4
- G32-5
- G32Q3-75
- G32Q3/4-100
- G32Q4/5-100
- G32Q4/5-125
- G32V
- G32V-1
- G32V-3
- G32V-4
- G32V-5
- G60UH-1
- G60UH-24A-045
- G60UH-24A-045X
- G60UH-24A-070
- G60UH-36A-070
- G60UH-36A-070X
More models are covered than are listed here.
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