---
title: "Range oven not heating"
description: "DCS range oven not heating: the oven under a commercial-style range, which is heavier, deeper and better insulated than the average, and therefore hides a…"
url: "https://dcsmiami.support/services/range-oven-not-heating-repair/"
date_modified: "2026-09-14"
Appliance type: "range"
---


# DCS range oven not heating

### The ignitor that glows convincingly and opens nothing

On a gas oven the commonest failure is also the least visible. An ignitor does not usually die — it weakens, glowing a perfectly convincing orange while drawing too little current to open the safety valve, and no amount of looking at it reveals that. It takes a meter. So the chain is tested rather than inspected: ignitor draws current, current opens the valve, valve admits gas, gas meets the glow. Break it anywhere and the symptom is identical. On the electric half of a dual fuel range the list is different — element, sensor, thermal fuse, board — and which of the two is in the kitchen decides everything.

What this involves

Dual fuel and all gas fail in different places — we establish which first

Nothing at all and not quite right are two different diagnoses

A code with its sub-error narrows this before we arrive

Establish the fuel and read any code in full

The letter alone is not enough; the digits separate a board error from a software one from a communication error. On an all-gas oven the ignitor's behaviour on the way up tells us most of what we need.

Test the heat source under load

Element resistance or ignitor current, then the safety valve's response to it. A gas oven ignitor that is weak will glow convincingly and never open the valve — the commonest failure on this type and invisible without a meter.

Confirm the cavity holds what it makes

Door seal, hinge tension and the sensor's accuracy. A heavy door that no longer pulls square loses heat from one corner and reads exactly like a failing element.

### How do I know whether ours is dual fuel or all gas?

The top is gas on both, so the difference is underneath. A dual fuel oven has elements and a convection fan; an all-gas one has a burner and an ignitor you can usually see glow through the floor of the cavity. If you are unsure, we will work it out — it simply means the right part travels out the second time rather than the first.

### It heats, just slowly and never quite to temperature.

That is a different page and usually a different part. Slow and short points at the door, the seal or a drifted sensor rather than at the heat source, and it is worth checking the seal before anybody buys an element.

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