#DIAGNOSISCondition 1Condition 2Condition 3Condition 4Condition 5
1NOT POSSIBLE, THIS IS A FAULT FLAGLL-Temp < OA-Temp    
2PANEL OFF DURING MEASUREMENTSCond ΔT < 20*FLLT > OAT + 5*F   
3CONDENSOR IS DIRTYCond ΔT > 25*FLLT > OAT + 5*F   
4SENSORS ARE NOT CONNECTED LONG ENOUGH DURRING TESTCond ΔT < 20*F(OA, LL )ΔT BETWEEN 2*F and 8*FSAT < 58*FOAT > (RAT +10*F) 
5TOO MUCH OACond ΔT > 20*F(OA, LL )ΔT > 2*FSAT > 60*FOAT > (RAT +10*F) 
6FAULT- CHECK LIQUID LINE READINGS(OA, LL )ΔT >25*FSAT < 58*F   
7MISSING DATAMISSING DATAMISSING DATAMISSING DATAMISSING DATA 
8LOW AIRFLOWCond ΔT > 20*F(OA, LL )ΔT > 2*FSAT < 50*F  
9RA PANEL OFF DURING MEASUREMENTOAT > (RAT +10*F)Cond ΔT > 20*F(OA, LL )ΔT > 2*FSAT > 65*F 
10ONE CIRCUIT OVERCHARGEDCOMP_QTY=2Cond ΔT > 25*F(LLT1&2)- (OA, LL )ΔT > 2*FABS(LLT1-LLT2)ΔT > 5*FSAT <= 55*F