Service manual

condenser fan motor running -
unit hot (power to compressor)
inoperative replace
Compressor inoperative Disconnect power to vendor,
remove all leads from
compressor, check continuity
from “common”, “start” and
“run” to compressor case. If
continuity shows, replace
compressor. Also Check from
“common to start”. (using
continuity or IHMS.) If meter
fails to show reading replace
compressor.
Compressor starts but does
not run
Will not cycle Check overload and contact,
replace overload if necessary
Starting relay stays closed Replace relay
Thermostat inoperative Check thermostat clean
contacts with approved
electrical cleaner. Replace
thermostat it necessary
Compressor motor problem Check, replace
Compressor runs but cabinet
temperature warm
Loss of refrigerant Replace refrigeration unit
(Note: any work of this nature
done without express
permission from The Vendo
Company can void
refrigeration unit warranty)
Condenser fan not working Check circuit to run motor.
Replace motor. Check for
obstruction of fan blade.
Blocked or dirty condenser
(refer to initial installation in
the service manual)
Check condenser vanes for
obstruction, lint or dirt. Clean,
also check for proper air flow
through refrigeration area.
Evaporator fan not working Check circuit to fan motor.
Replace motor also check for
obstruction of fan blade
Bad inner door seal Check for moisture on seal.
Adjust inner door as
necessary (see initial setup of
service manual). Replace
door seal.
S-22