SPONSORED LINKS

A/C Control panel intermittent, is there a way to troubleshoot the power supplies on the control board?

Tiny
JVTECH7
  • MEMBER
  • 2002 HONDA ACCORD
  • 4 CYL
  • 2WD
  • MANUAL
  • 180,000 MILES
When working all functions seem to work normally. Turning fan control from off, if mode LED illuminates, system works, air controls direct air properly heat/cold respond. When LEDs do not illuminate, fan speed functions but no other functions work. Is there a way to troubleshoot the power supplies on the control board?
SPONSORED LINKS
Tuesday, July 26th, 2022 AT 4:03 AM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,363 POSTS
It sounds like you have an HVAC control panel that is going out, but to be sure here is a guide to help you check for power and ground with the HVAC wiring diagrams so you can see which wires to test in the images below. I have also included how to replace the control panel as well.

https://www.2carpros.com/articles/how-to-use-a-test-light-circuit-tester

Check out the diagrams (below). Let us know what happens and please upload pictures or videos of the problem.

Images (Click to make bigger)
Thumb
Thumb
Thumb
Thumb
Thumb
Thumb
Thumb
Thumb
Thumb
Thumb
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Tuesday, July 26th, 2022 AT 11:29 AM

Please login or register to post a reply.

Related Climate Control Control Panel Content

VIEW MORE

Sponsored links