Trane MUA-SVP01A-EN manual Diagnostics Non-Critical Fault Codes, Fault Code Flame Failure

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Diagnostics

2.Are the main automatic gas shutoff valves energized?

–No. The main automatic gas shutoff valves are leaking. Turn off unit and close manual gas valves. Determine cause of valve failure and rectify.

–Yes. Continue.

3.Is the flame relay energized?

–No. There is a short in the wiring of the gas valves. Close manual gas valves. Determine cause of short and rectify.

–Yes. Continue.

4.Is the burner enable relay energized?

–Yes. There is a short in the wiring of the flame relay. Close manual gas valves. Determine cause of short and rectify.

–No. Continue.

5.Is the burner enable relay's normally open contact closed?

–Yes. Close manual gas valves. Replace the relay.

–No. Continue.

6.Unplug the input terminals from the input jack. Is there continuity at the controller between the burner status terminals?

–No. Close manual gas valves. There is a short in the wiring between the burner status relay and the burner status terminals. Determine cause and rectify.

–Yes. Close manual gas valves. Replace the controller.

FAULT CODE: Flame Failure

Note: This fault code is not applicable to all unit types.

PROBLEM:The controller has received a signal from the flame relay indicating a flame failure.

SOLUTION:Investigate flame relay

1.Is there a prior alarm such as Unit On/Fan Off, Airflow Sw., or Safety Circuit?

–Yes. See the Diagnostic section for the previous alarm.

–No. Continue.

2.See flame relay troubleshooting information in unit Installation, Operation, and Maintenance Manual.

Diagnostics - Non-Critical Fault Codes

This section should assist the user in troubleshooting non-critical fault code messages that have been displayed on the local user interface. Most of these faults are automatically reset once the fault is corrected or condition changes.

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Direct-Fired Indoor and Outdoor Units • MUA-SVP01A-EN

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Contents Controls Programming Guide JanuaryOverview Networking Direct-Fired Indoor and Outdoor Units MUA-SVP01A-EN Contents Contents Unit Operating Modes MDT ControlsMRT Controls MRT-Pro ControlsUnit Operating Modes MRT-Expert Controls Unit Operating Modes General Burner Control Heating ModeHeating/Ventilating/Cooling Operating Modes Unit Operating Modes Ventilation Mode Cooling Mode M P E R a T U R E S EManual Mode Damper Control ModesMixed Air Temperature Mode Building Pressure Mode Functions 100% Outside AirMinimum Ventilation FreezestatUser Configured PID Control Direct Acting85ºF Reverse Acting Direct actingReverse acting Unit Resets Multiplexed InputsClock Set Fault Code Low Discharge Temperature DiagnosticsCritical Fault Codes Diagnostics Direct-Fired Indoor and Outdoor Units MUA-SVP01A-EN Fault Code Safety Circuit Open Fault CODEBurner Status SOLUTIONIf fan is running check prior alarm logFault Code Burner Hand Diagnostics Non-Critical Fault Codes Fault Code Flame FailureSolution If fan is not running Fault Code Unit off/Fan onSolution If fan is running Solution If fan/motor is not running Fault CODEUnit on/Fan offSOLUTIONIf fan/motor is running Fault Code Check Airflow Switches Fault Code Clogged Filter Switch SOLUTIONIf clogged filter switch is closingFault CODEEnergy Save Mode SOLUTIONIf setpoints are misadjustedSOLUTIONIf setpoints are not misadjusted Solution If OAT, RoomT or DAT are such that heat is requiredDiagnostics SOLUTIONIf heat is desired Fault CODEInsufficient OASolution If setpoints are misadjusted SOLUTIONIf less outside air is desired Diagnostics Unit Modes Hotkey Menu SelectionMenu Selection Tree for BACview Menu Selection SET Points HotkeyAlarm Hotkey Resets HotkeyAlarm History 64 Most Recent Status Menu HotkeyUser Configurable Output Hotkey Schedules HotkeyClockset Hotkey Help HotkeyFuel Select Hotkey Thermostat Output Curve Ohms Thermistor Output CurveAirflow Station Layout Airflow station layoutZone 583 Controller Specifications Network CommunicationZone 583 Controller Specifications Rnet MRT-Pro or Room Air sensorTypical Wiring Schematic Non-recirculating with evap Dfoa and Dfia model diagramTypical Wiring Schematic Recirculating Dfoa and Dfia model diagrams Recirculating Dfoa and Dfia model diagram Typical Wiring Schematic Trane
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