Dacor Range E4 Error: Gas pressure sensor fault
This dacor range e4 error code guide explains what this fault means for your Dacor appliance and how to respond safely. What E4 Means on a Dacor Range E4 indicates the oven control detected an anomaly in the gas pressure monitoring circuit. The control board cannot confirm adequate gas pressure for safe oven burner ignition, […]
~10%
DIY Fixable
From $250
Typical Repair Cost
60-120 min
Pro Repair Time
Quick Assessment
Answer to continue safely
Is it safe to keep using?
No. Gas pressure faults mean improper combustion. Do not use gas burners until pressure is verified.
Can I reset the code?
Yes. A power cycle may clear a transient E4. Persistent faults require gas line and regulator inspection.
When to stop immediately?
Stop if you notice: Do not attempt repeated ignition cycles if E4 is present — each failed attempt releases unburned gas into the kitchen., Stop immediately if you smell gas at any point — close the supply valve and ventilate before any further troubleshooting..
Symptoms You May Notice
Oven burner will not light and E4 appears
The oven does not heat on bake or broil — the igniter may click but the burner never lights, and E4 is displayed indicating a gas supply or pressure monitoring fault.
Surface burners light normally but oven does not
The sealed surface burners continue to ignite and burn at normal flame height, confirming that house gas supply is present — the fault is specific to the oven burner circuit or its pressure sensing.
E4 appears after gas supply interruption
The code surfaces after a gas shutoff — planned maintenance, a supply interruption, or a new gas line connection — when the oven control cannot re-establish a valid pressure reading on restart.
Oven flame is uneven or lifts off the burner before E4
Before settling into a persistent E4 lockout, the oven may produce an irregular or lifting flame during ignition attempts — a sign of low or fluctuating gas pressure at the oven valve.
Possible Causes
Gas supply pressure below specification
House gas pressure has dropped below the minimum required for the Dacor oven burner — typically 4-7 inches water column for natural gas models. This can be caused by a partially closed supply valve, a regulator failure, or high simultaneous demand on the gas system.
Requires ProfessionalFailed gas pressure sensor or flow switch
The pressure sensing component in the oven burner circuit has failed and is reporting an out-of-range condition to the control board, even when actual gas pressure is adequate.
Requires ProfessionalOven gas safety valve not fully opening
The oven's dual safety valve is partially stuck, restricting gas flow below the level needed for consistent ignition and causing the pressure sensor to report a fault.
Requires ProfessionalSafe Checks You Can Do
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1
Confirm the gas supply valve is fully open
Locate the gas shutoff valve behind or beneath the range — it should be parallel to the gas pipe (fully open) not perpendicular (closed). Also check the main house gas shutoff if there was a recent outage. Reset the range at the breaker after confirming the valve is fully open.
A valve that is only three-quarters open may allow enough pressure for surface burners but insufficient pressure for the oven burner, which requires a higher sustained flow.
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2
Check for E4 after other gas appliances run
If the home has multiple gas appliances (water heater, furnace, dryer), check whether E4 appears specifically when other appliances are also drawing gas simultaneously. This points to a whole-house gas pressure issue rather than a range fault.
If E4 clears when no other appliances are running, contact your gas utility to test supply pressure — this is a free service from most providers.
When to Call a Professional
Contact a qualified technician if:
- Gas supply pressure tests below 4 inches water column at the range — gas utility or plumber adjustment required.
- Gas pressure is adequate but E4 persists — pressure sensor or safety valve replacement required by a licensed technician.
- E4 persists after valve replacement — control board gas valve output circuit requires diagnosis.
Need Professional Help?
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