Unit info: Command Aire m/n:SWPR611EA, s/n: J8965733, thermostat: Honeywell T874C1117. Thermostat terminals: W1 W2 G R O Y1 E X1. Terminals on the unit: R Y1 Y2 G W O B. My question is what wires from the thermostat go to which terminal on the unit? The customer has ripped apart the electrical on the unit and I get to rewire it now. Looks like we have everything in order now other than low voltage. On a call for heat the compressor contactor arche's and "chatters" fyi I changed out the contactor. Boss suspects its the low voltage wiring. Any help is greatly appreciated.