Viking VUAR140 Troubleshooting Guide download pdf (Page 21)

TROUBLE SHOOTING GUIDE ---UNDERCOUNTER ICE MACHINE ---

PROBLEM PROBABLE CAUSE CORRECTION

7. Too thick of an ice slab 7a. The hot gas valve is not operat- 7a. See component testing section

forming. ing properly. (Page 26)

7b. The evaporator thermostat is not 7b. The thermostat should open and

operating properly. close at the temperatures

indicated on the unit’s tech sheet.

7c. The evaporator plate is nicked or 7c. Inspect evaporator plate, replace

scratched, or covered with a if necessary. Test water supply

mineral build-up. for high mineral content.

8. Ice Slab with hollow area in 8a. The water valve is stuck open. 8a. Listen for water running out the

the center. drain during the ICE MAKING

cycle.

8b. The hot gas valve is leaking. 8b. See component testing section

(Page 26)

8c. The refrigeration sealed system 8c. Check sealed system for leaks

is under charged, or partially and for restrictions.

restricted.

9. Ice slab with a lip over the 9a. The capillary tube has broken 9a. Check underneath the front edge

front of the evaporator loose. for a separation of the capillary

freezer plate. from the edge of the

evaporator plate.

10. Ice slab with side flanges 10a The hot gas valve has a small 10a. See component testing section

leaks. (Page 26)

11. Ice ball forming on the 11a. The bin door is cracked open, or 11a. Check door seal and replace

capillary tube at the the door seal is leaking. if damaged.

evaporator inlet. 11b. The insulation bag is not in place 11b. Reposition the insulation bag.

blocking the passage of warm air

from the unit compartment into

the evaporator area.

12. Frost between outlet of the 12a. The ice thickness control is set 12a.Reset the thickness control.

evaporator and the accumulator too high, and too thick of an ice

slab is forming.

12b. There is an over charge in the 12b. Check sealed system for over

refrigeration sealed system. charge or restriction.

13. Sweating or frost on suction 13a. The accumulator is not level, 13a. Level accumulator (Ice machine).

line. (Horizontal).

13b. There is an over charge in the 13b. Check sealed system for over

refrigeration sealed system. charge or restrictions.

14. Unit still making ice after bin 14a. The bin thermostat is not 14 a. Check position of thermostat.

is full. operating properly. (The Change bin thermostat.

thermostat should open and close

at the temperatures indicated on

unit’s tech sheet ).

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Viking VUAR140 Troubleshooting Guide Page 21

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Viking VUAR140 Troubleshooting Guide Page 21

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