Carrier VECTOR 6500 - Compressor Suction Modulation Valve (CSMV) Malfunction; Evaporator Expansion Valve (EVXV) Malfunction

9−7
62-11389
Indication/Trouble
Possible Causes Action/Refer-
ence Section
9.4.11 Evaporator Expansion Valve (EVXV) Malfunction
EVXV not controlling correctly
Low refrigerant charge 8.6.2
EVOT defective 8.9.10
EVOP defective 8.8.8
Coil not seated properly on valve Check
EVXV inlet screen plugged Check and Re-
place
Loose connector Check and
Tighten
9.4.12 Compressor Suction Modulation Valve (CSMV) Malfunction
CSMV not controlling correctly
Coil not seated properly Check
Coil defective 8.8.5
Loose connector Check and
Tighten
CST defective 8.9.10
CSP defective 8.8.8
CDT defective 8.9.10
CDP defective 8.8.8