Troubleshooting - Trane S9V2B040U3VSAE Installation, Operation And Maintenance Manual

Troubleshooting

The following pages include troubleshoo ng flowcharts in reference for the 2 Stage S9V2* family of furnaces only.
The informa on contained is for reference only and does not cover all scenarios or problems that may be encountered.
ONLY qualified technicians should a empt to install, troubleshoot, or repair this appliance.
Failure to follow all cau ons and /or warnings could result in personal or property damage, including death.
Alarm Error Code
e0!
e2.!
e2.2
e2.3
e2.4
e3.!
e3.2
e3.3
e3.4
e04
e0s
e06
e6.3
e7.!
e7.2
e08
e0g
e10
e!!
e!2
e!3
e!4
e!s
e!7
e!8
S9V2-VS-SVX001-1B-EN
Error Codes
Alarm Explanation
Loss of the IRQ or other internal failures (Internal IFC error)
Retry Exceeded (Failed to Establish Flame)
Recycles exceeded (Loss of Established Flame) or 10X PS1 Open
1st Stage Gas Valve Not Energized When It Should Be exceeded after 10 times
Redundant Relay (HLO output) Not Energized when it should be exceeded after 10 times
Shorted Pressure Switch, 1st Stage
Open Pressure Switch, 1st Stage
Shorted Pressure Switch, 2nd Stage
Open Pressure Switch, 2nd Stage
Open Limit (Main Thermal, Rollout Switch, or Reverse Airflow Switch)
Flame detected, should not be present
Voltage reversed polarity or Bad Grounding
(1) Igniter relay fails
(2) Igniter open
1st stage gas valve (MVL) is energized when it should be off
Redundant Relay (HLO output) Energized when it should Not be
Flame current is low, but still strong enough to allow operation
Open Inducer Limit Switch or Condensate Pressure Switch
Communication error between variable speed inducer and blower motor microprocessor
(1) 2nd stage gas valve energized when it should NOT be
(2) 2nd stage gas valve not energized when it should be
(3) 1st stage gas valve not energized when it should be
(4) Redundant relay (HLO output) not energized when it should be
Open fuse
Blower HP/OEM ID
No PM and local copy bad
Both of unit Data File in PM and local Unit Data File are corrupt
Blower motor no communication response
Blower communication failure on the control
93