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S9V2-SF-2A-EN

Troubleshooting

The following pages include troubleshoong flowcharts in reference for the 2 Stage S9V2* family of furnaces only. 

The informaon 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 cauons and /or warnings could result in personal or property damage, including death.  

Error Codes

Alarm Error Code

Alarm Explanation

e0!

Loss of the IRQ or other internal failures (Internal IFC error)

e2.!

Retry Exceeded (Failed to Establish Flame)

e2.2

Recycles exceeded (Loss of Established Flame) or 10X PS1 Open

e2.3

1st Stage Gas Valve Not Energized When It Should Be exceeded after 10 times

e2.4

Redundant Relay (HLO output) Not Energized when it should be exceeded after 10 times

e3.!

Shorted Pressure Switch, 1st Stage

e3.2

Open Pressure Switch, 1st Stage

e3.3

Shorted Pressure Switch, 2nd Stage

e3.4

Open Pressure Switch, 2nd Stage

e04

Open Limit (Main Thermal, Rollout Switch, or Reverse Airflow Switch)

e0s

Flame detected, should not be present

e06

Voltage reversed polarity or Bad Grounding

e6.3

(1) Igniter relay fails

(2) Igniter open

e7.!

1st stage gas valve (MVL) is energized when it should be off

e7.2

Redundant Relay (HLO output) Energized when it should Not be

e08

Flame current is low, but still strong enough to allow operation

e0g

Open Inducer Limit Switch or Condensate Pressure Switch

e10

Communication error between variable speed inducer and blower motor microprocessor

e!!

(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

e!2

Open fuse

e!3

Blower HP/OEM ID

e!4

No PM and local copy bad

e!s

Both of unit Data File in PM and local Unit Data File are corrupt

e!7

Blower motor no communication response

e!8

Blower communication failure on the control

Summary of Contents for S9V2B040D3PSBC

Page 1: ...a al l R Ri ig gh ht t o or r H Ho or ri iz zo on nt ta al l L Le ef ft t S9V2B040U3PSBC S9V2B060U4PSBC S9V2B080U4PSBC S9V2C080U5PSBC S9V2C100U5PSBC S9V2D120U5PSBC D Do ow wn nf fl lo ow w O On nl ly...

Page 2: ...R E EX XP PL LO OS SI IO ON N H HA AZ ZA AR RD D F Fa ai il lu ur re e t to o f fo ol ll lo ow w t th hi is s W Wa ar rn ni in ng g c co ou ul ld d r re es su ul lt t i in n d da an ng ge er ro ou us...

Page 3: ...r d de ea at th h D Do o N NO OT T a at tt te em mp pt t t to o m ma an nu ua al ll ly y l li ig gh ht t t th he e f fu ur rn na ac ce e W WA AR RN NI IN NG G C CA AR RB BO ON N M MO ON NO OX XI ID DE...

Page 4: ...ef fo or re e s se er rv vi ic ci in ng g f fi il lt te er rs s t to o a av vo oi id d c co on nt ta ac ct t w wi it th h m mo ov vi in ng g p pa ar rt ts s W WA AR RN NI IN NG G C CA AR RB BO ON N M...

Page 5: ...il lu ur re e t to o f fo ol ll lo ow w t th hi is s C Ca au ut ti io on n c co ou ul ld d r re es su ul lt t i in n p pr ro op pe er rt ty y d da am ma ag ge e o or r p pe er rs so on na al l i in nj...

Page 6: ...e e p po oi is so on ni in ng g o or r d de ea at th h The following steps shall be followed for each appliance connected to the venting system being placed into operation while all other appliances c...

Page 7: ...ed d T Th he e 9 90 0 e el lb bo ow w c co on nn ne ec ct ti io on n t to o v ve er rt ti ic ca al l p pi ip pe e m mu us st t b be e s se ea al le ed d t to o p pr re ev ve en nt t c co on nd de en...

Page 8: ...Fan Performance Table See Fan Performance Table See Fan Performance Table Motor HP 1 2 3 4 3 4 R P M Variable Variable Variable Volts Ph Hz 120 1 60 120 1 60 120 1 60 FLA 5 7 8 8 COMBUSTION FAN Type P...

Page 9: ...are in accordance with National Electrical Code however installations must comply with local codes Model S9V2C080U5PSBC a b S9V2C100U5PSBC a b S9V2D120U5PSBC a b Type Upflow Horizontal Upflow Horizon...

Page 10: ...certified to ANSI Z21 47 CSA 2 3 latest edition c For U S Applications above input ratings BTUH are up to 2 000 feet derate 4 per 1 000 feet for elevations above 2 000 feet above sea level For Canadi...

Page 11: ...ORIFICES Main Nat Gas Qty Drill Size 2 45 3 45 4 45 Propane Gas Qty Drill Size 2 56 3 56 4 56 GAS VALVE Redundant Two Stage Redundant Two Stage Redundant Two Stage PILOT SAFETY DEVICE Type 120 V SiNi...

Page 12: ...lts Ph Hz 120 1 60 120 1 60 FLA 10 5 10 5 COMBUSTION FAN Type PSC PSC Drive No Speeds Direct 2 Direct 2 Motor RPM 3300 2600 3300 2600 Volts Ph Hz 120 1 60 120 1 60 FLA 0 66 0 66 Inducer Orifice 1 05 1...

Page 13: ...above input ratings BTUH are up to 2 000 feet derate 4 per 1 000 feet for elevations above 2 000 feet above sea level For Canadian applications above input ratings BTUH are up to 4 500 feet derate 4 p...

Page 14: ...me sensor Flame sensing must take place within 4 seconds N No ot te e There are two flame sense pads located on the IFC marked FP To measure the flame current use a VOM set to DC volts 1VDC 1 micro am...

Page 15: ...r motor will ramp down to 1st stage and the unit will continue to run until R W1 contacts open 12 When the temperature raises enough to satisfy the thermostat setting contacts R W1 will open 13 The ga...

Page 16: ...o satisfy the thermostat setting contacts R Y1 Y2 G will open 8 The OD unit shuts off and the indoor blower shuts off unless a blower off delay has been enabled in the IFC setup menu options The seven...

Page 17: ...tric power supply To clean burners remove burner bottom plate 2 screws and bottom burner bracket 2 screws Twist burner towards slot lift and push forward away from orifice Remove burners Alternate met...

Page 18: ...RAL GND GROUND HLO HIGH LIMIT OUTPUT HLI HIGH LIMIT INPUT PS1 1ST STAGE PRESSURE INPUT PS2 2ND STAGE PRESSURE INPUT IND INDUCER IFC INTEGRATED FURNACE CONTROL RAF REVERSE AIR FLOW Tx TRANSMIT SIGNAL R...

Page 19: ...94 142 189 237 284 High 1400 CFM 1337 1269 1200 1132 1063 Temp Rise 27 29 31 32 34 Watts 335 376 417 458 499 a Factory Setting Table 2 S9V2B040D3PSBC Heating Airflow S9V2B040D3PSBC Furnace Heating Air...

Page 20: ...162 211 Cooling 310 CFM Ton CFM 620 620 620 620 620 Watts 38 71 109 152 199 Cooling 290 CFM Ton CFM 580 580 580 580 580 Watts 33 64 101 142 188 Cooling 2 5 Ton Cooling 450 CFM Ton CFM 1125 1125 1125 1...

Page 21: ...er Watts vs External Static Pressure with Filter Cooling Unit Outdoor Airflow Setting CFM ton External Static Pressure 0 1 0 3 0 5 0 7 0 9 Cooling 1 5 Ton Cooling 450 CFM Ton CFM 672 674 672 666 656 W...

Page 22: ...0 1018 Watts 135 189 242 296 351 Cooling 330 CFM Ton CFM 987 986 981 973 961 Watts 117 167 218 270 322 Cooling 310 CFM Ton CFM 928 927 923 915 903 Watts 100 148 196 245 295 Cooling 290 CFM Ton CFM 868...

Page 23: ...115 151 188 Cooling 310 CFM Ton CFM 611 620 611 584 538 WATTS 39 73 107 142 177 Cooling 290 CFM Ton CFM 573 581 571 543 496 WATTS 34 67 99 133 168 Cooling 2 5 Ton Cooling 450 CFM Ton CFM 1097 1114 11...

Page 24: ...1 1394 1380 1348 Watts 287 350 413 474 535 Cooling 330 CFM Ton CFM 1289 1310 1312 1297 1264 Watts 244 305 364 423 481 Cooling 310 CFM Ton CFM 1210 1229 1231 1214 1180 Watts 206 264 320 376 431 Cooling...

Page 25: ...M and Power Watts vs External Static Pressure with Filter Cooling Unit Outdoor Airflow Setting CFM ton External Static Pressure 0 1 0 3 0 5 0 7 0 9 Cooling 2 0 Ton Cooling 450 CFM Ton CFM 892 899 893...

Page 26: ...448 1420 Watts 324 391 456 519 581 Cooling 400 CFM Ton CFM 1375 1391 1391 1376 1347 Watts 284 348 410 471 530 Cooling 370 CFM Ton CFM 1273 1287 1286 1269 1239 Watts 230 290 349 405 461 Cooling 350 CFM...

Page 27: ...th Filter Cooling Unit Outdoor Airflow Setting CFM ton External Static Pressure 0 1 0 3 0 5 0 7 0 9 Cooling 3 0 Ton Cooling 450 CFM Ton CFM 1335 1347 1356 1362 1366 WATTS 182 241 303 366 431 Cooling 4...

Page 28: ...Watts 448 530 614 700 786 Cooling 400 CFM Ton CFM 1782 1789 1794 1797 1798 Watts 392 471 551 632 715 Cooling 370 CFM Ton CFM 1647 1656 1663 1668 1670 Watts 318 390 465 541 618 Cooling 350 CFM Ton CFM...

Page 29: ...e 43 43 43 44 44 Watts 745 801 857 913 969 a Factory Setting Table 14 S9V2C100D5PSBC Heating Airflow S9V2C100D5PSBC Furnace Heating Airflow CFM and Power Watts vs External Static Pressure with Filter...

Page 30: ...002 WATTS 81 123 168 216 266 Cooling 310 CFM Ton CFM 955 950 947 944 940 WATTS 70 110 153 199 248 Cooling 290 CFM Ton CFM 894 888 885 882 877 WATTS 59 97 138 183 231 Cooling 3 5 Ton Cooling 450 CFM To...

Page 31: ...1770 1768 1764 1759 Watts 359 431 505 580 656 Cooling 330 CFM Ton CFM 1675 1673 1671 1667 1663 Watts 305 374 443 514 587 Cooling 310 CFM Ton CFM 1576 1575 1573 1570 1565 Watts 258 322 388 455 523 Coo...

Page 32: ...Static Pressure with Filter Cooling Unit Outdoor Airflow Setting CFM ton External Static Pressure 0 1 0 3 0 5 0 7 0 9 Cooling 3 0 Ton Cooling 450 CFM Ton CFM 1336 1346 1354 1360 1363 WATTS 163 221 28...

Page 33: ...1881 1882 1883 Watts 399 480 562 645 727 Cooling 400 CFM Ton CFM 1783 1789 1793 1796 1798 Watts 350 427 505 584 663 Cooling 370 CFM Ton CFM 1648 1656 1662 1666 1669 Watts 283 355 427 500 574 Cooling...

Page 34: ...entage CpC Cooling CFM Ton CpH Heat Pump Heating CFM Ton Xod Heat Off Delay Seconds sd Inter Stage Delay Seconds gXC Gas Heating CFM 2nd Stage 1st Stage is not adjustable run Run Test Mode Error Codes...

Page 35: ...appears 2 Enter the menu by pressing the Option key 3 The last 6 faults can be viewed Clearing the Last 6 Faults 1 To clear the last 6 faults press the Menu key until the Last 6 Faults L6F menu appear...

Page 36: ...B040D3PS 088 088 095 125 065 S9V2B060D3PS 103 103 113 135 090 S9V2B080D4PS 133 133 148 120 126 S9V2C100D5PS 187 187 210 152 180 S9V2D120D5PS 225 225 175 185 195 Model ODT Op ons Default Upflow S9V2B04...

Page 37: ...flow display is rounded down to the nearest 10 cfm NOTES 1 The menu status displayed is solely dependent on the input of 24VAC that is applied to the low voltage terminal strip 2 The status will alter...

Page 38: ...wer on 2nd stage compressor speed for 10 seconds Turns the circula ng blower on 1st stage gas heat speed for 10 seconds Turns on the circula ng blower on 2nd stage gas heat speed for 10 seconds The ab...

Page 39: ...Belly Band Location Distance from belly band to the front face of motor for minimum vibration A Blower housings and wheel removed from view for clarity Furnace Cabinet Size Dimension A inches B 2 705...

Page 40: ...n Pressure Switch 1st Stage e3 3 Shorted Pressure Switch 2nd Stage e3 4 Open Pressure Switch 2nd Stage e04 Open Limit Main Thermal Rollout Switch or Reverse Airflow Switch e0s Flame detected should no...

Page 41: ...EAC HUM Dry Contacts Neutral Connections Inducer Igniter Connector 7 Segment LED MENU and OPTION Select Buttons 5 Amp Fuse BK Jumper Flame Current FP HLI IGN N BK W2 W1 R G B C Y2 Y1 O IND N IND LO I...

Page 42: ...een Line and Neutral at the IFC NO Is 120 VAC measured between Line and Neutral at J box NO Verify Panel Loop is connected YES Repair hi voltage NO Is 24 VAC measured at transformer YES Replace Xfmr N...

Page 43: ...for heat Lockout period is for one hour Flame has never been sensed All gas appliances in the home should be turned on to verify gas pressure Disconnect electrical power to furnace Connect manometer...

Page 44: ...furnace Connect manometer to inlet gas pressure connector Cycle power to furnace and call for 1st stage heat Is minimum outlet gas manifold pressure maintained Correct incoming gas supply pressure NO...

Page 45: ...ct 3 1 Fault Code Cycle power to the furnace and call for 1st stage heat NO Replace pressure switch Verify wiring If correct replace IFC YES Is PS1 oriented correctly for the applica on Correct orient...

Page 46: ...asionally occur when wind gusts occur The IFC will a empt to close both PS1 by increasing the voltage to the inducer motor Note 2 Measured pressure is nega ve greater than refers to magnitude only 3 2...

Page 47: ...ted correctly for the applica on NO YES Correct orienta on See Installers Guide NO Replace pressure switch Verify wiring YES DEFINITION An error has occurred with the PS2 indica ng that the pressure s...

Page 48: ...sure switch is not the problem NOTE Verify pressure switch wiring and tube rou ng are correct Note 2 Measured pressure is nega ve greater than refers to magnitude only 3 4 Fault Code NO Cycle power to...

Page 49: ...ION Limit switches are safety devices that will open when an abnormal high temperature has been sensed REMOVE ALL JUMPER WIRING TO SWITCHES Under no circumstances shall these switches be le jumpered w...

Page 50: ...hen fan comes on do flames stay consistent Replace heat exchanger Check opera on NO Replace Roll out switch Check opera on YES DEFINITION Limit switches are safety devices that will open when an abnor...

Page 51: ...de and Installa on Instruc ons YES NO Disconnect power to unit Turn off gas supply Remove gas valve 05 Fault Code Is flame current measured across FS pads YES Is flame seen with no call for heat YES R...

Page 52: ...sconnect incoming electrical power to furnace Wiring Error Reverse 120 vac power leads to furnace wiring Reconnect power Check opera on Correct neutral and ground problem Furnace must be on a dedicate...

Page 53: ...120 vac Disconnect incoming electrical power to furnace NO Correct earth ground Check opera on Furnace must be on a dedicated circuit Check correct all ground connec ons within furnace for con nuity F...

Page 54: ...t damaged and connectors are ght Disconnect igniter and check resistance Is resistance reading between 37 70 ohms at 75F NO Replace ignitor Check opera on YES 6 3 Fault Code Igniter is good Does ignit...

Page 55: ...al voltage present between Red lead at gas valve connec on to chassis ground Remove any hea ng call Correct wiring Check opera on YES Replace IFC NO 7 1 Fault Code 7 2 Fault Code DEFINITION Internal c...

Page 56: ...me sensor loca on NO Flame sensor is good Check wiring and or connec ons NO 08 Fault Code Flame Sensor Make a call for 1st stage hea ng There are two flame sense pads located on the IFC marked FP To m...

Page 57: ...n of the furnace ven ng system Is 24 VAC measured across inducer limit switch Inducer limit switch is open Make a call for 1st stage hea ng Is 24 VAC measured across condensate pressure switch Correct...

Page 58: ...open or missing Apply power to the unit Is 24 VAC measured across the fuse terminals Replace fuse YES Is fuse fully seated into connector NO Properly seat the fuse NO Replace IFC YES Start unit and m...

Page 59: ...PM with the correct model serial NO Remove blower ves bule panel to gain access to blower motor YES Does the blower motor HP match the nameplate Replace motor with correct HP NO Replace motor YES DEFI...

Page 60: ...IFC Install and or fully seat NO DEFINITION This fault is generated when IFC does not see a return signal from the blower motor 17 Fault Code Is 9 pin connector at the blower ves bule panel installed...

Page 61: ...message itelf 18 Fault Code Does the error code change to E17 With power on remove the 4 pin motor connector from the IFC Verify harness and wiring connec ons YES See addi onal motor troubleshoo ng Re...

Page 62: ...and 5 Correct replace wiring Check opera on NO YES Remove the serial motor wiring harness at the IFC Apply 24 VAC to wires 3 4 Does motor run Replace motor Check opera on NO Replace IFC Check opera o...

Page 63: ...63 Part List Igniter Flame Sensor In shot Burner s Gas Valve Inducer Assembly Blower Motor Blower Wheel IFC Integrated Furnace Control Pressure Switch es Main Thermal Limit Roll Out Switch es Reverse...

Page 64: ...sidential applications For more information please visit www trane com or www americanstandardair com The manufacturer has a policy of continuous data improvement and it reserves the right to change d...

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