Frymaster Heated Landing Zone HLZ 22 - Manual (Page 10)

Frymaster L.L.C., 8700 Line Avenue 71106, P.O. Box 51000, Shreveport, Louisiana 71135-1000
318-865-1711 FAX 318-862-2394
Printed in the United States Service Hotline Page 8
1-800-24-FRYER
8. Operator Troubleshooting Guide
Symptom Possible Cause
No computer display; no flow from
air tower
No power
Circuit breaker out
Low voltage
Bad fuse
Bad transformer
Hi-limit out
No flow from air tower
Bad latching relay
After 20 minutes of operation
computer display shows PROB
RTD probe has failed. Isolate failed
component by checking temperature of
air and heater plate with the temperature
display keys on the computer. The plate
temperature should be within ± 15°F of
setpoint. The air heat should be within ±
25°F of setpoint. If both temperatures are
good, the computer is likely bad.
After 20 minutes of operation
computer display shows HI
Plate heater, plate heater relay or RTD
are faulty.
After 20 minutes of operation
computer display shows LO
Air heater, air heater relay or RTD are
faulty