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I have a pyrox vulcan wall furnace, model 4720006. when I turn it on, nothing happens. The F1 isn't showing on the screen as malfunctioning but it seems the pilot light doesn't start up when I press on. Have tried turning on and off but still nothing works. (it's getting a bit chilly.....)

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Hello Chilly - First I'd like to know if this is a new unit or one that has been working until now.

If it had previously working are these the steps you're going through to start it?

START-UP SEQUENCE 1. Press the ON / OFF button. 2. Raise the temperature to HIGH so that the heater calls for heat 3. Within 10 seconds the gas valve will open and the sparker will function. Ignition will commence on a low gas rate and move to high fire after 3- 5 seconds (if high is selected on the control) 4. Within 5 seconds the flame sensor will prove the flame. 5. The fan will not operate until the fan thermostat switch has sensed temperature rise. This may take 2 or 3 minutes. 6. The fan will then start on a low fan speed and after 3 - 5 seconds move to high speed (if High is selected on the control)

If that is or is not what you have been doing let me know and we'll go from there.

Regards,

Mikeywaf

Posted on Mar 26, 2011

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Posted on Jan 02, 2017

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