Page23
15” & 24” Series
Technical Services Manual
SMR-0014
General Troubleshooting
Dianostic Guide
All Gaskets are a dart and slot design. The new gasket should be positioned onto the door or drawer.
Starting at the corners, insert the gasket dart into the slot and press firmly. After all corners have been
engaged, continue down each side until the entire gasket is in position. A rubber or plastic hammer can
also be used to aid in the dart insertion.
This diagnostic guide can be used for any of Viking’s Refrigeration Products. All refrigeration systems
are similar in design.
(1) Call for Cooling
LED Controller Display Snowflake is
Illuminated, cabinet temperature will not achieve cut-out tempera-
ture (door has not been left open or excessive load - ambient
temperature or internal product is not the cause). Blinking LED
indicates the unit is in the anti-cycle time (5 minutes for all models).
(2) Evaporator Airflow?
Check evaporator airflow? The evaporator fan is controlled by
the digital controller and the door switch. Ensure both the fan LED
is illuminated and the door switch is depressed for the fan to be
receiving power. Air should enter through bottom louvers and exit
out of fan guard openings. (Evaporator fan cycles with compres-
sor).
(3) Clear Obstruction
Clear any obstruction which may be hindering proper airflow
through the evaporator, including product placed against the
louvers or ice build-up on the coil, etc.
(4) Condenser Airflow
Check condenser airflow? The condenser fan motor will be in
operation at the same time as the compressor. Ensure the LED
Snowflake is illuminated. Air should be felt being pulled through
louvers on the left half of the grille and pushed out of the louvers
on the right when facing the unit.
(5) Clear Obstruction
Clear any obstruction which may be hindering proper airflow
through the condenser, including anything blocking the louvers, dirt
and debris on the coil, etc.
