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Error code reference
Trane HVAC Error Code E1
Heat failure diagnostic indicating an error in the heating system.
SourceTrane HVAC - Service Manual: ReliaTel™ Microprocessor Controls (RT-SVD03L)p. 35, 103
Diagnostic procedure
The full E1 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.
MyPros+ · DiagnosticsStep 1 preview
1
First diagnostic step
Check ignition module LED for specific flash code; check gas heat components (TCO, PS, FR) or electric heat limit switches.
SourceTrane HVAC - Service Manual: ReliaTel™ Microprocessor Controls (RT-SVD03L)p. 35, 103
More steps, wiring diagram references, and verified part numbers
Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.
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Where this code is documented
1 manual in the MyPros+ library documents this code for Trane hvac.
Models covered by the manuals that document this code
75,000+ service documents · 20,000+ error codes · 100+ brands
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