Emerson 57T01-843 Blower Time Delay Relay

This is a good price on this board and Im not sure Ive been able to find a better price anywhere. I seem to go through one of these boards about every three years. Uncertain if my HVAC system is the cause, or if the reliability of this board is the issue. In any case, I keep a spare on hand now.

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

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 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.

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

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.