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Heil Condensing Upflow Gas Furnace Model NUGK075AG02

sperhaam

By sperhaam
in DIY Appliance Repair Help

Recommended Posts

sperhaam

sperhaam

Posted
Posted

When blower failed to run in "Fan Auto" or "Fan On" modes, I replaced the blower relay, and the AC ran normally for one month and then the relay failed again. I replaced the blower relay again, and the AC ran normally for two more months but failed again. What could be causing the blower relay to continue to fail?

  • Replies 3
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RegUS_PatOff Sensei

RegUS_PatOff

Posted
Posted

How is it failing ?

Relay Contacts "burned" ?

Relay Coil "open" ?

ACtechGUY Kohai

ACtechGUY

Posted
Posted

The correct relay is one rated for 12 amps at full load(FLA). Assuming you are using the right part , there is one reason for failure.

Relay

PART NUMBER: 90-340

Failing blower motor or failed capacitor . The motor is drawing more than the rated amps on the relay.

applianceman18007260692 Sensei

applianceman18007260692

Posted
Posted

What relay are you using?

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