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TROUBLESHOOTING CIRCUITS WITH MULTI-METER
Caution: Power must be disconnected and fan circuit open.
To check the power source, use the voltage section of the Multi-Meter. Acceptable range is 103-127VAC for 115V (60Hz), or 195-255VAC
230V (50Hz).
Check compressor starting relay.
Embraco 1/3 HP – Remove relay from compressor. (Figure 21a and Figure 21c).
Use ohmmeter to check for continuity between switch terminals.
Check temperature sensor harness to control board for continuity using ohmmeter of Multi-Meter. Replace if there is no
continuity.
Check compressor windings using ohmmeter. Refer to
Check motor protector (overload). Use the ohmmeter section of the Multi-Meter.
Embraco 1/3 HP – Remove overload (Danfoss) Check between terminals 1 and 3 for continuity. If no continuity (infinity),
overload may be tripped. Wait 10 min. and try again. If still no continuity, overload is defective.
PREVENTIVE MAINTENANCE
CAUTION:
Always disconnect power source BEFORE cleaning or servicing.
ONCE A MONTH
CLEAN CABINET INTERIOR
Wash with a mild detergent and water, rinse and dry thoroughly. Odors may be eliminated by including baking soda or ammonia
in the cleaning solution. Plastic parts may be cleaned with a quality plastic cleaner.
The vend mechanisms must be kept clean. Any build-up can cause the mechanisms to malfunction.
DO NOT GET THE CLEANING SOLUTION ON ELECTRICAL COMPONENTS.
To insure proper vending keep delivery box area free of dirt and sticky substances.
CLEAN CABINET EXTERIOR
Wash with a mild detergent and water, rinse and dry thoroughly. Clean occasionally with a quality car wax. Plastic exterior parts
may be cleaned with a quality plastic cleaner.
EVERY 3 MONTHS
REPLACE AIR FILTER
The refrigeration air filter is to prevent dust from building up on the condenser coils and allows
the refrigeration system to operate efficiently.
Pull the filter holder and check the air filter.
If filter is dirty, replace it with the same size and type of filter.
Airflow arrow on the filter must point to the left (towards the inside of vendor).
On those vendors with air filter handle hook filter holder around filter edge and
reinstall clip on opposite end.
WARNING: Do not replace with a HEPA type filter. This may not allow the correct amount of air to flow through.
CLEAN BOTTOM INLET SCREEN
The inlet screen is a long narrow screen located on the
bottom right side. It can only be accessed from
underneath the cabinet. Remove dust and debris from the
inlet screen to allow air to flow to the condenser coils.
S T / V T V E N D O R • 3 5 6 8 3 5 6 7 3 5 6 6 3 5 6 5 •
TABLE
25
, Figure 21a and Figure
.
1
21c
4 2 2 0 5 5 7 R e v A
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