Cornelius QUEST 4000 Service Manual download pdf (Page 24)

Quest Elite 4000 Service Manual

TROUBLESHOOTING GUIDE

The following tables contain trouble-shooting information intended to aid an

experienced service person in diagnosing operational problems that may occur. For

further assistance, contact the Cornelius Customer Services department at 800-

283-3600 between the hours of 7:30A.M. and 5:00P.M. Central Standard Time. You

must have the model and serial number (Located on the right side of the dispenser)

when calling.

Table 2

Symptom Probable Cause Remedy

Unit totally inopera-

tive

A. No power to dispenser due to tripped

circuit breaker.



B. Loose or broken power supply connec-

tion inside dispenser.

A. Reset circuit breaker. Confirm that

breaker is correct size & no other

equipment is operating on the same

circuit. Also confirm that supply voltage

is +/-10% of nameplate specification.

B. Repair connection.

No Cooling A. Line voltage not within nameplate

specification causing compressor

overload to trip.

B. No water in water ice bath or water

level extremely low, exposing ice bank

sensing probe.

C. Defective Ice Bank Control or sensing

probe.

D. Cabinet fan inoperative resulting in

warm concentrate (water continues to

cool).

E. Compressor short cycles on overload.



F. Compressor starts but hums & trips

overload.

G. Defective compressor overload or start

capacitor.

H. Compressor starts but does not switch

off of start winding.

I. Refrigerant leak.

A. Contact an electrician.



B. Fill ice bath to proper water level.



C. Replace.

D. Replace.

E. Excessively high discharge pressure

due to restricted condenser or inopera-

tive condenser fan motor.

F. Seized or shorted compressor,

replace.

G. Test & replace.

H. Relay or compressor is defective. Test

& replace faulty item.

I. Repair leak, evacuate & recharge sys-

tem.

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Cornelius QUEST 4000 Service Manual Page 24

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