Emerson 57T01-843 Blower Time Delay Relay

As far as I can tell, this is the original. Onli 1-2 capacitors have different colors (does not affect performance). Otherwise, exactly the same part

Good part

Exact same part with a different number. Mine was RLY02807. This part has been replaced before on this unit by an HVAC company so I dont know what the OEM part number was. 98 Vintage American Standard heat pump. Symptom is usually the indoor fan running constantly but this time the fan would intermittently work. This is very bad for the outdoor units compressor. Not as bad as the outdoor blower fan not blowing but almost. Luckily I caught it in time and its all working well now.

My Air Handler twv025b140a1 blow motor was turning on and off continuously. This fixed the problem.

Works just as it should. Very happy with this purchase!

I used it with a 1/2 hp blower motor to replace a terrible multi speed motor!

Works great for the price this is a must buy!!

Exactly what I wanted

This Timer board worked perfect in my daughters Trane Air Handler. The fan motor wouldnt start and she had already called a HVAC company and was charged $200 to replace a $10 start capacitor which didnt fix it. If she had called them again Im sure it would have cost $250 or more (Thats $450 dollars for a job that should have cost less that $100 with labor). I changed this in about 10 minutes for only $21.99 and she was up and running. I only wish one day delivery was available on this item.

This part fixed my AC that would not shut off - perfectly! So far the unit has been working perfectly all summer, so for the $20+ dollars invested, could not ask for anything more.