11TROUBLESHOOTINGTable 2: 7-Segment Display CodesCondition LED 1 LED 2 LED 3 Comment/Troubleshoot StepLine Frequency Error / Internal Fault EE 00 00 Verify 60 Hz line frequency, Replace controlPressure Switch Open EE 00 11 Check pressure switch, inducer, and flueFlame Detected When no FlameShould be Present EE 00 44 Check gas valve for proper operation, check gasvalve and safety limit wiringOpen Fuse EE 00 66 Locate & repair 24V fault, replace fuseRollout Switch Open EE 00 77 Check for rollout condition or failed switchPressure Switch Stuck Closed EE 00 99 Replace failed pressure switchGas Valve On Error E 1 1 Check gas valve operation and wiringGas Valve Off Error E 1 2 Check gas valve operation and wiringIgnitor Relay Fault E 1 3 Internal ignitor relay failure, replace controlIgnitor Open Failure E 1 4 Replace failed ignitorGrounding Error E 1 5 Check control & furnace ground connectionsReversed Line Polarity E 1 6 Hot and neutral wires are reversedTwinning Error E 1 7 Validate twin configuration for both unitsHigh Limit Switch Open E 1 8 Check for open/failed HL & any aux switchesLockout - Retries Exceeded E 2 1 Lockout after unsuccessful trial for ignitionLockout - Gas Valve Off E 2 2 Gas valve relay internal error, replace controlLockout - Recycles Exceeded E 2 3 Lockout after failed relight due to flame lossLockout - Pressure Switch Open E 2 4 Lockout due to open pressure switchLockout - HPS Open E 2 5 Lockout for Housing P.S. on condensing unitsHPS Stuck Closed E 3 1 Housing P.S. stuck closed - condensing unitsHPS Open E 3 2 Housing P.S. not closing - condensing unitsAuto Configuration Error E 4 1 See Automatic Configuration Process NotesNFC Connectivity Error E C 1 NFC comm error, power cycle control & retryContinuous Fan (G) F A N Active call for constant fanStandby O n Ready to access menus or respond to callsControl Power Up 8 8 8 Displayed at initial power upBlower on After Power up b O n Cool down after power loss with active callGas Heat (W) Present before pre-purgeor during error conditions h t P Gas heat call active before inducer pre purge or witherror conditions that prevent ignitionGas Heat (W) with Pre-Purge Active h p r Gas heat call active during pre-purge periodGas Heat (W) with Inter-Purge Active h I p Gas heat call active during inter-purge periodGas Heat (W) with Post-Purge Active h P o Gas heat call active during post-purge periodGas Heat (W) Ignitor Warm-up PeriodActive I g n Gas heat call active during ignitor warm-up periodGas Heat (W) Trial for Ignition PeriodActive t F I Gas heat call active during trial for ignition periodGas Heat (W) after flame is active h t Gas heat call with flame presentSingle Stage Gas Heat Active (W) h t 1 1st stage gas heating – Goodman Hybrid onlyGoodman Hybrid Only - 2nd Stage GasHeat (Autostage) h t 2 2nd stage gas heating – Goodman Hybrid only,2nd stage timing based on AHS menu settingSingle / High Stage Cooling (Y/Y2) C L Call for high cooling with 1 or 2 stage AC/HPLow Stage Cooling (Y1) C L 1 Call for low cooling – For 2 stage AC/HP onlyLow Flame Current Sense F L o Check Flame Quality, Clean/Replace Flame SensorAuto Configuration in Progress d C f Allow 30 seconds for the control to configure