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BillyHvac, Journeyman HVAC Tech
Category: HVAC
Satisfied Customers: 22515
Experience:  Endorsed for unlimited heating, cooling, oil burners, boilers, refrigeration, hydronics
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Seems like I need a fan relay old Climatrol gas furnace

Customer Question

seems like I need a fan relay for an old Climatrol gas furnace with an AC coil
Submitted: 2 years ago.
Category: HVAC
Expert:  BillyHvac replied 2 years ago.
do you aprox how old the furnace is?
Is it a 24v control system?
Use reply
Customer: replied 2 years ago.
at least thirty years old
AC compressor starts but fan doesn't come on
If I give the side of the fan portion of the HVAC unit near the relay then the fan starts
Seems like the fan relay hangs up
Customer: replied 2 years ago.
yes- thermostat is 24 V
Expert:  BillyHvac replied 2 years ago.
Thank your current relay a cube with R, G, Y, W and C on it or just a rectangle relay with just a few wires attached?
Customer: replied 2 years ago.
Five connections with screw contacts
Expert:  BillyHvac replied 2 years ago.
Yep you need what is called a fan center. You can get them around $20+. Any fans center with 120v input and 24v output will work on your unit.
Expert:  BillyHvac replied 2 years ago.
see link -