Lennox Furnace Error Code DS1 Fast Flash / DS2 Slow Flash
During ignitor warm-up period only: improper main ground, broken ignitor or open ignitor circuit, or line voltage below 75 volts.
SourceLennox G60UHV(X) Series Furnace - Full Service Manualp. 12
The full DS1 Fast Flash / DS2 Slow 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 G60UHV(X) Series Furnace - Full Service Manualp. 12
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Where this code is documented
5 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
- 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
- G60UH(X)
- G60UHV-36A-070
- G60UHV-36A-070X
- G60UHV-36B-090
- G60UHV-60C-090
- G60UHV-60C-090X
- G61MP-36B-045
- G61MP-36B-070
- G61MP-48C-090
More models are covered than are listed here.
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