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SYMPTOM POSSIBLE CAUSE
Inadequate rinse or rinse 1. Dirty line strainer causing reduced water flow. Turn off water supply, remove
water temperature too low. strainer cap, withdraw and clean screen. Reassemble.
Possible EE display. 2. Low supply line pressure.
3. Excessive mineral deposits throughout wash and rinse system. Deliming may
be necessary, refer to page 20.
4. Incoming water temperature to booster (if applicable) below 110°F. Machine
will automatically extend wash time until booster heats up (this applies to
booster equipped machines only).
5. If EE displays: Booster did not reach temperature within 8 minutes after initial
fill. Press OFF, wait 5 seconds and press ON. May be booster heater failure.
Leaking valve. 1. Foreign material preventing proper valve operation. NOTE: A critical period
is soon after installation when pipe compound or metal shavings may lodge
at the valve seat. Shut off supply line. Unscrew and lift bonnet from valve
body. Clean valve and reassemble.
2. If a solenoid valve is malfunctioning (not opening or not closing), it is
recommended that you contact Hobart Service.
No wash tank heat. 1. The machine is equipped with a low water safety device which shuts off heat
if the water level drops. Check for proper water level. If the water level is
too low, the overflow tube might be out of position. Or, something may be
inhibiting free movement of the low water float; remove any foreign object from
around the low water float or its magnet.
2. Gas line closed.
3. Blown fuse or tripped circuit breaker at power supply.
If a failure occurs due to the gas heat control board or gas pressure,
contact Hobart Service.
No or slow fill. 1. Debris may be obstructing standpipe movement allowing fill water to drain.
Possible E2 display. 2. Water supply may be off; make sure water supply valve is open.
3. Dirty line strainer causing reduced water flow. Turn off water supply, remove
strainer cap, withdraw and clean screen. Reassemble.
4. Worn or torn drain O-ring allowing wash water to drain.
5. If E2 displays: Water did not reach the float during a fill within 2.5 minutes.
Press OFF, wait 5 seconds and press ON.
Possible Ed display. 1. Slow leak. Make sure the drain lever is closed, the standpipe is seated and
the O-ring is clear of all food soil or other debris.
Dribbling water from lower 1. If equipped with electric booster, normal dripping from the lower rinse arm
rinse arm. will occur during water heating due to expansion of the water. This will occur
once between machine cycles.
2. If water dribbles or leaks continuously from rinse arms on any machine, refer
to Leaking Valve, above.
Possible E6 display. 1. Contact your local Hobart Service Office.
Wrench lights up and P1, 1. Contact your local Hobart Service Office.
P2 or P3 displays.