Hobart KA7E Convection Oven User Manual


 
– 36 –
F35521 (May, 2008) PRINTED IN U.S.A.
TROUBLESHOOTING
PROBLEM POSSIBLE RESOLUTION
Control does not light up. 1. Press On-Off switch ON.
2. Electric supply is interrupted; check circuit breaker.
Cooking too slow. Fan blade(s) and ventilation area require routine cleaning.
Water isn't spraying during wash
cycle.
Wash cycle is in soak mode. Display says 'Soaking'.
Wash arm isn't turning. Drip strainers are not in their proper place and are interfering with wash arm
motion; check drip strainers.
Nothing seems to be happening
after CLEAN is pressed.
Oven is cooling down or preheating to the optimum temp. for cleaning.
Oven is not clean enough after
cleaning cycle is complete.
1. Chemical bottle may be empty; replace with full bottle.
2. Ensure tubing is cut at an angle and that standpipe is in place to prevent
tube from curling inside chemical bottle.
3. Contact Hobart service to make any needed parameter changes to cleaning
cycle programming (amount of chemical or second pre-rinse cycle, etc.).
Nothing seems to be happening
in Clean Mode.
Time delays are programmed between steps during clean cycle.
Oven uses too much chemical. 1.  Typical usage is approximately 1/2 gallon per day.  
2. Contact Hobart service to make any needed parameter changes to clean
cycle programming (amount of chemical or second pre-rinse cycle, etc.).
Grease or liquids are running
outside the unit.
Pump tubing needs to be replaced. Contact Hobart service.
ERROR MESSAGE POSSIBLE RESOLUTION
DOOR IS OPEN
CLOSE THE DOOR
displays.
Close the door.
CANNOT CONTINUE
CLEANING CYCLE
and
WATER FAIL
CHECK SUPPLY
display alternately; a double beep sounds.
1. Open the water supply valve.
2. Remove any kinks in the hose.
3. There may be low water pressure / volume. Call Hobart
service.
CHECK DETERGENT
CHECK DETER PUMP
displays.
1. Chemical bottle may be empty; replace with full bottle.
2. Ensure tubing is cut at an angle and that standpipe is in
place to prevent tube from curling inside chemical bottle.
3. Pump tubing may need routine maintenance; contact
Hobart service.
ATTEMPTING TO
DRAIN SUMP
and
DRAIN FAIL
CHECK DRAIN, PUMP
display alternately.
The sump may be clogged. Call Hobart service.
CLEANING
CANCELLED
displays.
Occurs if "St o p " key is pressed during Cl e a n i n g . Please
wait while oven cycles through two rinse cycles and the
drying cycle.
INTERRUPTED CLEAN
CYCLE
displays.
Occurs if "on-of f " switch is cycled during Cl e a n i n g . Please
wait while oven cycles through two rinse cycles and the
drying cycle.
SERVICE
Contact your local Hobart ofce.