Emerson 57T01-843 Blower Time Delay Relay

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.

Direct replacement for most Trane and A/S units under 10 years old.

The product is great. Package want sealed all the way. First time this has happened Thank you for delivering great product!!

Direct replacement for 4352-F relays installed on Trane air units. Quick and easy replacement for burned out relay and for a fraction of cost quoted by local contractor who literally insisted to replace the whole Trane unit.

I suspected I had a bad relay when my blower fan would either shut off immediately after reaching the thermostat setpoint, or sometimes it would never shut off unless I opened the breaker. I verified that this relay was a replacement for the original in my 16 yr. old Trane unit. It was slightly different than the original, but the terminal designations made the swap simple. My unit now runs like its supposed to, at a fraction of the cost of having an AC company do the work.

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.

This works great. I have A/C again. This fit my Trane air handler perfectly.

perfect match works great

Good part

Part was exactly what we needed and our air conditioner is running like new again because of it!