Introduction If your radiant tube heater has a flame-sensing issue, the flame sensor itself is not the only thing to check. Reverse polarity or an improper ground can also contribute to the problem. Checking the electrical supply helps determine whether either condition needs to be addressed before continuing with flame-sensor troubleshooting. For the Detroit […]
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Introduction Detroit Radiant Products newest burner box design is referred to as the V3 Burner. This includes a service access door which can be opened while the unit is running for easier serviceability. This blog and video go over how to test a Transformer on these units. Testing the transformer on a Detroit Radiant Products […]
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Introduction If a Detroit Radiant Products low intensity radiant tube heater has a call for heat but its fan blower does not turn on, the blower may need attention. A grinding noise or a blower wheel that does not spin freely for multiple revolutions is another sign of a failed blower. Confirm that replacement is […]
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Introduction If a low-intensity radiant tube heater lights and then drops out, or locks out on flame sense, the flame rod is one of the first components worth investigating. A dirty flame rod, a loose connection, damaged wiring, or insufficient gas pressure can all prevent the control from confirming a proper flame. Before replacing parts, […]
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Introduction – What is a ‘V3’ Burner? Detroit Radiant Products newest burner box design is referred to as the V3 Burner. This includes a service access door which can be opened while the unit is running for easier serviceability. This blog and video go over how to test a Gas Valve on these units. If […]
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Introduction A forced air unit heater that shuts down unexpectedly may be reacting to a high limit or flame rollout switch issue. One of the clearest signs is the fan sequence: when there is a call for heat, the inducer fan and the room circulating fan start at the same time. Under normal operation, the […]
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Introduction If a radiant tube heater will not start, the first troubleshooting step is to confirm that the unit is receiving a call for heat. This simple multimeter test helps separate an issue with the thermostat or external field wiring from a problem inside the heater itself on systems that utilize 24V low-voltage supply. On […]
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Introduction If a radiant tube heater fails to ignite or shuts down within the first eight seconds of operation, an airflow-related fault may be preventing normal combustion. These problems can be frustrating because the heater may begin its ignition sequence, appear close to lighting, and then shut itself down. The key is to recognize the […]
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Introduction A radiant heater that will not ignite can sometimes come down to one small part: the hot surface igniter, commonly called a glow bar. Fortunately, diagnosing it is straightforward. All you need is a multimeter set to resistance, or ohms. An OL reading is often the first big clue. It usually means the igniter […]
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