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airheatman, HVAC Technician
Category: HVAC
Satisfied Customers: 8164
Experience:  Furnace, A/C and heat pump specialist.
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Error code 42 coming on screen no air from vents

Customer Question

Error code 42 coming on screen no air from vents
Submitted: 10 months ago.
Category: HVAC
Expert:  airheatman replied 10 months ago.

The 42 error means we have an overeat problem.Basically an overt temperature limit.When a limit opens,. the fan should be energized on high speed until problem is corrected. Since your fan is not running, the limit code is probably due to overheating because fan is not running.

Check power to fan and if we have power to fan, the fan itself Is the culprit.

Customer: replied 10 months ago.
Problem now solved Thank you

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