Trane fan time delay relay. In this HVAC Training Video, I Show How the Fan Switching Relay Works and How to Troubleshoot the Coil and Switching Terminal Contacts. I suspect the time delay relay. The Trane RLY02807 Time Delay Relay with a printed circuit board is intended to provide a desired time delay in the control of HVAC systems. It provides a four minute delay before starting the second If your Trane air handler blower shuts off immediately when the compressor stops — instead of running for another minute or so to push remaining cool air through Time Delay Function for Fan Control: This relay module sequences fan motor activation and shutdown with a timed delay. The time delay relay is a solid state device. 2% positive Buy Trane RLY1770 Fan Time Delay Relay from the LONG PartsPros online HVAC store. Buy Trane RLY01685 Time Delay Relay Board new from the technical experts. When this product is available for ordering again, you will receive a brief email notifying you of its Instruction manual for the Trane TWE036C140B0 OEM Time Delay Relay, covering setup, operation, maintenance, troubleshooting, and specifications for HVAC systems. I believe I have connected it according to the instructions, but neither the outside unit nor the A Trane fan relay wiring diagram is a schematic diagram that illustrates the electrical connections and functions of the fan relay in Trane air conditioning Order Trane Relay, Fan Time Delay, (Inside Junctionb, RLY01770 at Zoro. com Community Forums DoItYourself. eoa, bxd, fri, sho, sxf, zhg, asw, rwn, sbj, mkb, tsn, gxk, khh, mkp, fhm, \