Evaporator Expansion Valve (Evxv) Malfunction; Compressor Suction Modulation Valve (Csmv) Malfunction - Carrier VECTOR 6500 Operation & Service Manual

Indication/Trouble

9.4.11 Evaporator Expansion Valve (EVXV) Malfunction

EVXV not controlling correctly

9.4.12 Compressor Suction Modulation Valve (CSMV) Malfunction

CSMV not controlling correctly
Possible Causes
Low refrigerant charge
EVOT defective
EVOP defective
Coil not seated properly on valve
EVXV inlet screen plugged
Loose connector
Coil not seated properly
Coil defective
Loose connector
CST defective
CSP defective
CDT defective
CDP defective
9−7
Action/Refer-
ence Section
8.6.2
8.9.10
8.8.8
Check
Check and Re-
place
Check and
Tighten
Check
8.8.5
Check and
Tighten
8.9.10
8.8.8
8.9.10
8.8.8
62-11389