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airheatman
airheatman, HVAC Technician
Category: HVAC
Satisfied Customers: 7997
Experience:  Furnace, A/C and heat pump specialist.
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Recently notice a clicking noise coming from my furnace.

Customer Question

Recently notice a clicking noise coming from my furnace. Traced to a b2015-s85 solenoid valve. would just replacing this fix my issue
JA: Did you check the furnace's filters?
Customer: Yeah, thermostat has timer function reminding to replace filters, replace regularly
JA: Do you plan on doing the work yourself?
Customer: Maybe if it is nothing more then replacing this valve
JA: Anything else we should know to help you best?
Customer: Nope
Submitted: 2 months ago.
Category: HVAC
Expert:  airheatman replied 2 months ago.

Do this. Take a volt meter and check for 24 volts ac to the solenoid. If the voltage stays constant but relay still clicks in and out, replacing relay should solve issue. If the voltage is dropping out issue is not relay.