Question about Broan-NuTone N-9427P Bulb Heater Heater

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Nutone heat lamp only stays on for 30 sec. then turns off

Nutone model 9422P-R01bulb heater. I have this bulb heater connected to a thermostat type switch. When I turn the switch to lets say 10 minutes it only turns on for 20/30 seconds then turns off. It will come back on again but only for a brief time IE 20/30 seconds.I'm thinking the switch is the problem? If so what type Model should I have installed?? Thanks

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5 Suggested Answers

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SOURCE: master 160,000 btu will not stay lit

pull out flame sensor and sand. Re install and call for heat

Posted on Jan 21, 2009

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SOURCE: Noisy, smelly fan in nutone heater

You should probably replace the heater motor. All the parts should still be available for you fan and it should only take a few minutes to change out.

Posted on Feb 13, 2009

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SOURCE: NuTone 9093 Heat-A-Ventlite: Ventilation not working

My guess it will be the motor.That would be the first thing I would do is replace it.

Posted on Mar 14, 2009

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SOURCE: Unit turns on with thermostat and heats but then

Sounds like the relay that controls the heating element is sticking.

Posted on Feb 02, 2011

  • 3 Answers

SOURCE: Nutone, Model QTXN 100HL-A 1500 Watt

The "diode" that your electrician mentioned is actually a one shot thermal fuse.
You can either go to the Nutone website for parts, or remove the thermal fuse, extract the info written on it and buy a replacement. Mine was a 100C 10A thermal fuse. I got mine from DigiKey.

Posted on Feb 15, 2012

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I'm trying to get my heater going this season. The pilot lights fine and heater will kick in but will only run 30 seconds max before it quits and I have to restart it. I've done this at least 20 times in a...


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All Procom heaters are either automatic (thermostat-controlled) or Manual. None are both.

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