Henny Penny LVE-202, Technical Manual

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Troubleshooting E-10 high limit not resetting
1. If the high limit trips and can’t be reset, make sure that they vat has had at least 20 minutes to cool. If 20
minutes have passed, verify that the correct reset switch is being pressed and is being held in for 10 seconds.
If the high limit still doesn’t reset, power down the controls so all LEDs on the main control panel are off. For
some fryers you can do this by turning off the main rocker switch. Other models will require the fryer to be
unplugged or the breaker turned off. Once power is disconnected from the fryer for about 15 seconds, re-
connect power or turn the rocker switch back to the ON position. If the E-10 error disappears (resetting the
high limit), then the rocker switch is faulty and needs to be replaced. However, this gets the customer frying
again while they wait for the reset switch to be replaced. If the high still doesn’t reset, then a service call is
needed. Make sure to take the correct high limit control, thermocouple and reset switch with you to the
location.
2. Open the cover for the high limit modules or lower the control and locate the module giving the E-10 Error.
Check the LEDs on the module and use table 6 to identify the fault. If the limit LED (B) is flashing and the In-
Range LED is on and the high limit won’t reset, then first ensure that both high thermocouples are firmly
connected. Each thermocouple has two pair of red and white wires. Ensure one pair is firmly connected at
terminal (D) and the other pair firmly connected at terminal (E). For each pair of wires, the
white wire
connects to the positive terminal and red to the negative terminal . If the thermocouples are properly wired
and firmly connected test each of the two thermocouple using the J-type thermocouple chart and
thermocouple test procedure located here .
WARNING! Disconnect power to the fryer and use a needle nose pliers when removing wires otherwise
Electric shock or damage to wires may result. Replace the faulty thermocouple if one or both thermocouples
are open, shorted or consistently out of normal range. In the more unusual circumstance that no issues are
found with either thermocouple, or the reset switch, replace the high limit control.
Troubleshooting intermittent E-10 errors
1. Many times, intermittent E-10 errors are caused by neglect of the vat. If the Deep Clean / Clean Out procedure
is not performed regularly, carbon and other debris accumulate on the high limit thermocouple. If a Deep
Clean / Clean Out procedure hasn’t been performed recently, ensure that the customer perform this first
before a service visit is scheduled. Many times, this eliminates the intermittent E-10 errors. It also greatly
improves product quality. Also, if the vat is clean at the store and they experience intermittent high limit
tripping, then ensure that filtration is being performed when prompted. If filtration is skipped / bypassed,
breading and crumbs will accumulate in the bottom of the vat. If allowed to pile up and touch or cover the
high limit thermocouple or the heating element, the high limit will trip. After the vat cools it can be reset but
will trip again if crumbs are still present. If intermittent E-10 errors still occur, then a service call will be
necessary.
2. When at the location, ensure that the thermocouple is free from carbon build up and / or other debris. If so,
then start by checking the thermocouple connections at the high limit control that is causing the E-10 error.
Any loose connection at this module will cause an E-10 error so ensure all connections are firmly attached to
the correct terminals at the SSHL control. Ensure that both high thermocouples are firmly connected. Each
thermocouple has two pair of red and white wires. Ensure one pair is firmly connected at terminal (D) and the
other pair firmly connected at terminal (E). For each pair of wires, the
white wire connects to the positive
terminal and red to the negative terminal . Also check connections at the reset switch.
Troubleshooting control detect loop
1. Troubleshoot the control detect loop to quickly see if there are issues with wiring or connections at the main
control panel or if the control is detecting the high limit circuit properly. To do this, lower main fryer control
panel. Leaving the heat control harness connected, find the two high limit circuit wires. Measure voltage from
each high limit wire to neutral and across the wires. The control is working properly if 24 VAC is present at the
left high limit wire. If the SSHL control relay (A) is closed, voltage returns on the right high limit wire.
•
0 VAC across high limit wires – High limit circuit closed (normal)
• 24 VAC across high limit wires – High limit circuit open (tripped)
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