What is the primary control on an oil burner?

Primary controls detect both the pres- ence and absence of flame. A safety feature of primary controls is that they will not activate the oilburner for startup if the control senses a flame during the off cycle. This prevents additional fuel being pumped into a unit that has a fire before startup.

How do you reset the primary control on a Honeywell oil?

To reset from restricted mode: Press and hold the reset button for 30 seconds. When the LED flashes once for one second, the device has reset. The R7184 will enter the lockout mode when: Flame is detected during valve-on delay.

What does hard lockout mean on a Honeywell oil primary control?

Hard Lockout: Caused by a failure internal to the control or by a system fault such as flame out of sequence. A Hard Lockout will result in a no heat condition. To reset from Hard Lockout press and hold the “i” button for 2 seconds.

How do I reset my Honeywell r7284 oil primary control?

Hold “i” for at least 2 seconds to reset. Hold the “i” button longer than 10 seconds to return to Standby. If QUIT is selected, an “i” button press displays the Re-baseline option.

What is a primary control on a boiler?

The Purpose of Primary Controls in Heating Systems In particular, a primary control has three specific functions: Responding to the thermostat. Responding to the limit control. Controlling the startup, run cycle, and shutdown of the burner.

What is a primary control?

By. A conscious effort by an individual to gain a sense of control around their surroundings. It is their attempt to directly alter their environment with actions they initiate. PRIMARY CONTROL: “Frightening away birds from planted seed by early agrarians is an example of primary control.”

How do you fix a hard lock on a furnace?

Regardless of the culprit, you will have to perform a reset procedure to get your furnace out of lockout. Most modern gas furnaces can be reset by turning off the power, waiting around 20 seconds, then switching the power back on. Other furnace models may exit lockout after 1-2 hours and attempt to power on again.

How do you reset a hard lock?

Though lockout mode errors and resets do vary from manufacturer to manufacturer, most use a simple reset procedure that involves turning power off to the furnace for thirty seconds or longer and turning it back. The interrupted power supply clears the lockout and will allow the unit to attempt normal operation again.

What causes oil burner lockout?

A boiler can lock out for several reasons, such as you’ve run out of heating oil, there’s been a power cut, low pressure or a more serious safety issue. Another cause could be an extreme change in boiler pressure, this may occur with a sludge blockage.

What does the CAD cell primary control actually control?

The cadmium sulfide cell, or cad cell, is part of the primary control system and is used to sense the presence of the oil burner flame.