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Service Facts

X343070P08

Is the IFC LED flashing?

Is high voltage

power supplied

to the unit?

Replace IFC

YES

Is 24VAC low voltage

present from transformer

and fuse good

YES

Repair low voltage

wiring, replace

transformer, or

fuse as needed

Repair high voltage

connection to unit.

What is the fault

light flash code?

See FAULT LED

Flash Codes page

YES

Are connections and

wiring in working

condition?

Repair

connections

Close and hold

door switch

YES

GETTING

STARTED

Trane *UH2B080A9V3VA Service Facts

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