Trane A952V040BU3SB Installation, Operation And Maintenance Manual page 121

Upflow/horizontal and dedicated downflow gas-fired, direct/non-direct vent, 2-stage condensing variable speed furnaces

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DEFINITION:

This fault is generated when the IFC

does not see a send message itelf.

A952V-SVX001-1B-EN

18 Fault Code

With power on,

remove the 4 pin

motor connector from

the IFC

Does the error code

YES

change to E17?

Replace IFC

Serial Motor

Troublesho ng

T T r r o o u u b b l l e e s s h h o o o o t t i i n n g g

Verify harness and

See addi onal motor

wiring connec ons.

troubleshoo ng

121

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