

Henny Penny E-4: the pressure fryer's control board is running hot
On the PFE and PFG pressure fryers, E-4 is raised by the control electronics when the board behind the panel gets too hot.
Mon–Sat, 8am–8pm
- Controls and power
- Commercial controls and board repair
- Source: Henny Penny
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What E-4
actually means.
On the PFE and PFG pressure fryers, E-4 is raised by the control electronics when the board behind the panel gets too hot. Henny Penny links it to blocked side louvers and, on units that have one, a cooling fan that has stopped moving air.
Henny Penny commercial appliance display · also shown as CPU too hot
What to do when E-4 shows on the commercial applianceKind of codeControls and power
The controller itself is reporting trouble, or the supply behind it is: a display with dead segments, a keypad that stopped responding after steam or degreaser got behind it, relays that stick, stored recipes or cycles that vanished overnight, a blown control fuse, or one leg of a three-phase feed missing so half the heat or the pump is gone. A full power cycle at the breaker, done as the manual describes, clears a passing glitch; a code that returns, a scorched smell or any sign of moisture behind the panel means the breaker stays off, and that is a visit.
Usually leads toCommercial controls and board repair
Controllers, touch panels, relays, contactors and interlocks tested, and replaced only when the evidence says so.
Shows up asCommercial Appliance Error Code on a Combi, Fryer, Dish Machine or Laundry Display
A commercial appliance error code appears as letters or numbers on a combi, fryer, reach-in controller, dish machine or laundry machine display, or as a flashing light or an alarm tone.
MakeHenny Penny
Henny Penny equipment gets its visit once the unit is cool, any oil is down and the crew has logged the last load.
SourceHenny Penny FM05-011R operator manual, PFE 500 / PFE 561 / PFG 600 pressure fryers (C1000 and C8000 controls)
Henny Penny PFE 500 and PFE 561 electric and PFG 600 gas pressure fryers with the C1000 or C8000 control (operator manual FM05-011R).
Before you book,
in this order.
Each step comes from Henny Penny's own guidance for E-4 on its commercial appliances. Follow it to the end: the last card says whether this is a visit.
Press any button to silence the alarm, then switch the fryer off and back on as the manual directs.
Clear boxes, towels and grease buildup away from the louvers on both sides of the cabinet.
Note whether the kitchen is unusually hot around the fryer, such as a charbroiler next to it with its heat shield missing.
If E-4 returns once the louvers are clear, book a visit so the board cooling fan and the control can be checked.
Still there?
It usually turns into commercial controls and board repair. Book with the code and the model number.
What not to do
E-4 is not an oil temperature reading; hot shortening shows as E-5 instead. It also does not mean the high limit has opened, which is E-10.
What you may
notice with it.
The commercial appliance problems E-4 tends to arrive with. Answer these at the commercial appliance before anyone is booked.
All problemsWhere E-4 usually leads
Commercial controls and board repair.
Henny Penny
commercial appliances.
Henny Penny equipment gets its visit once the unit is cool, any oil is down and the crew has logged the last load.
Henny Penny commercial appliance repairMore Henny Penny codes
All 16 Henny Penny codesControls and power on other makes
In Henny Penny's own words
Control board overheating
Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. Henny Penny PFE 500 and PFE 561 electric and PFG 600 gas pressure fryers with the C1000 or C8000 control (operator manual FM05-011R).
Henny Penny E-4 commercial appliance repair,
where we come out.
The same visit in every metro below: the code, the model number, and a diagnosis before any part is ordered.
All service areasTampa BayFL · 31 areas
Miami / South FloridaFL · 47 areas
New York MetroNY · 75 areas
HoustonTX · 36 areas
ChicagoIL · 50 areas
Los AngelesCA · 95 areas
San DiegoCA · 31 areas
Questions
about E-4.
Can I clear E-4 myself?
Why does my Henny Penny pressure fryer show E-4 in the middle of a lunch rush?
Can I keep frying while a Henny Penny shows E-4?
Does E-4 on a Henny Penny mean the board needs replacing?
Back to your everyday
Still showing E-4?
A booking with a code goes further when it has the code as shown, the model and serial from the data plate, and a word on whether the unit still holds temperature, heats, rinses or spins. With those three, the office can match the likely part to your unit the same day.