Henny Penny Fryer Error Code E-70D: Fryer Type Set Wrong
E-70D mostly shows up on older Henny Penny controls such as the Computron 1000 and 2000 when the fryer type is set wrong, so nothing may be broken. Find out whether your gas fryer is standing pilot or spark ignition (SSI). If you are unsure which you have, or how to reach the setting, call us rather than guessing.
Low: this is often a setting mismatch and not a failed part, though a gas fryer should still be adjusted carefully.
- Code
- E-70D
- Maker
- Henny Penny
- Equipment
- Fryers
- Applies to
- Pressure fryers 500/600/561 (iControl-era online help)
What does Henny Penny error code E-70D mean?
Older Henny Penny controls need to be told what kind of gas ignition the fryer has. That choice is made in Special Programming, where the fryer type is set. If the control thinks the fryer is one type and the wiring says another, it believes the wires are crossed and displays E-70D. Nothing has to be broken for this to happen: a control that was replaced, reset or reloaded can come back with the wrong type selected, and the fryer is then rejected even though every part is sound. The owner's manual lists the setting as gas for standing pilot, or ssi for spark ignition. A real wiring mistake can give the same code, so the setting is checked first and the wiring only if the setting is already right. The manual's list covers the fryer type set in Special Programming, whether the fryer is standing pilot or spark, the wiring to the control, and the control itself. The display text is E-70D.
Affected models and control systems
Older Henny Penny controls such as the Computron 1000 and 2000 on gas fryers. Newer controls use E-70D less often.
Code numbers and their meaning can change between control generations. We match the full model and control before acting on a code.
What you may notice
- E-70D on the display
- Fryer will not light or run after a control change
- Code appears right after programming or a control swap
Possible causes
Listed in Henny Penny's documentation
- Fryer type set in Special Programming
- Whether the fryer is standing pilot or spark ignition
- Wiring to the control
- The control itself
Other likely causes — what usually sits behind error code E-70D on this control. A technician confirms which one it is before any part is replaced.
- A replacement control that shipped set to the other ignition type
- A reset after a power loss that returned the fryer type to a stock setting
Safe checks before calling for service
- Find out whether your gas fryer is standing pilot or spark ignition (SSI).
- The owner's manual lists setting the fryer type in Special Programming to gas for standing pilot or ssi for spark.
- If you are unsure which you have or how to get into the setting, call us rather than guessing.
- Write down the model and whether the control was recently replaced.
- Do not open panels or alter wiring.
How a technician diagnoses error code E-70D
- Read the model label and confirm the ignition type by inspection.
- Enter Special Programming and compare the fryer type setting with the equipment.
- Correct the setting and see whether E-70D clears.
- If the setting was already right, inspect the wiring to the control for crossed or swapped leads.
- Test the control inputs with a meter.
- Replace the control only after the setting and wiring are proven correct.
- Special Programming changes how the control treats the gas ignition circuit, so a wrong entry affects burner operation.
- A wrong type setting is easy to make, but so is a real wiring mistake, and only testing tells them apart.
- We test the wiring only if the setting is already right, which keeps the fix inexpensive.
Technical reference
- Document
- Henny Penny 4 Head Pressure Fryer online help, Error Codes
- Maker documentation
- Henny Penny owner support
- Models / control
- Pressure fryers 500/600/561 (iControl-era online help)
- Section
- Online help page 'Error Codes' - one Display / Cause / Solution table (HTML page, no page numbers); footer 2026 Henny Penny Corporation
- Checked
- October 2026
We use the maker's document to read the code and do not reproduce it. Always confirm the complete model and control before applying these steps.
Related Henny Penny fryer error codes
Does E-70D mean the control is bad?
Usually not. It most often means the fryer type setting does not match the fryer.
How do I know if mine is standing pilot or SSI?
The model label or the burner assembly tells us. If you are unsure, call us.
Is it dangerous?
The code itself is not, but gas fryers should not be adjusted by guesswork.
Need help with Henny Penny error code E-70D?
A technician confirms the cause on site and gives you the price in writing before any work starts.