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Where is my pilot light. The motor runs but no warm air

Customer Question
Where is my pilot...

Where is my pilot light. The motor runs but no warm air coming out the vents

Contractor's Assistant: Did you double-check the thermostat's settings? And what about the filters?

Just changed the filter and changed the batteries in the thermostat. Temperature set at 74. reading is 71

Contractor's Assistant: Do you plan on doing the work yourself?

Hopefully

Contractor's Assistant: Anything else we should know to help you best?

Not that I can think of.

Submitted: 1 month ago.Category: HVAC
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Answered in 2 minutes by:
1/1/2018
HVAC Technician: Rick, HVAC Supervisor replied 1 month ago
Rick
Rick, HVAC Supervisor
Category: HVAC
Satisfied Customers: 23,386
Experience: 40+ yrs. experience as a licensed oil & gas technician.
Verified

Welcome to Just Answer, my name is ***** ***** I will do my best to help you with your issue. First I’ll need some more info so I have a more complete picture of your situation.

What's the brand and model of your unit?

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Customer reply replied 1 month ago
Luxaire PBKM
HVAC Technician: Rick, HVAC Supervisor replied 1 month ago

What is the LED flash sequence on the control board in the blower compartment?

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Customer reply replied 1 month ago
OK what do I do
HVAC Technician: Rick, HVAC Supervisor replied 1 month ago

Answer my last question

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Customer reply replied 1 month ago
4 red blinks
HVAC Technician: Rick, HVAC Supervisor replied 1 month ago

This is an open limit circuit error. The easiest thing is to try resetting the roll out switch(es) (see attached pic for typical). They are located just outside the burner chamber. Turn the power off to the unit then try pushing the small button between the 2 leads on the switch. If it clicks you have reset it and the unit will fire up when you turn the power back on with any luck. If it doesn't click it wasn't tripped. There may be more than 1 so once you find the first one follow the wire to check for others in that circuit.

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Customer reply replied 1 month ago
Pic did not come through Cannot find the switch. Funny thing. It started on its for a minute or two, then quit again
HVAC Technician: Rick, HVAC Supervisor replied 1 month ago

Then it's not the rollouts. Probably a faulty limit switch

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Customer reply replied 1 month ago
now what?
HVAC Technician: Rick, HVAC Supervisor replied 1 month ago

Time to call a pro.

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Customer reply replied 1 month ago
Thanks, ***** ***** Just when I thought I had it going. Should I let the unit run or shut it don?
HVAC Technician: Rick, HVAC Supervisor replied 1 month ago

If it's blowing cold air shut it down.

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Customer reply replied 1 month ago
OK, Please resend the picture
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Rick
Rick
Rick, HVAC Supervisor
Category: HVAC
Satisfied Customers: 23,386
23,386 Satisfied Customers
Experience: 40+ yrs. experience as a licensed oil & gas technician.

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