Auricle Engine Monitor - 3 CHTs out at Once

[carrollm]

I have three of my CHTs gauges inop on my Auricle CRM2100 engine analyzer. Cyclinder 1, 3 and 5. Can't imagine all three probes went out at once. Any ideas where to being troubleshooting?

 

[flyersfan31]

Same bank. Pop the cowl and check the wiring. Would not be surprised to see a wire disconnected.

 

[MooneyDriver78]

Probably a disconnected canon plug

 

[RV10flyer]

Follow 1, 3, & 5 CHT wires(6). Check for contact with hot cylinder or exhaust pipe.

Did all three go out in flight or after maintenance was performed?

 

[carrollm]

Right after annual. I had a different A&P check for loose wiring, but he indicated the connections are all good. Probably have to find an A&P familiar with this particular monitor. The manufacture's website is pretty poor as far as listing authorized service centers.

 

[flyingron]

You could start by reading the docs: https://www.ultra-fei.com/uploads/Documents/AuRACLE/060-000003_RevK.pdf

I'm still betting on the connector at the firewall-side module. Thing looks like an old IBM channel cable.

Note if this thing is configured as your primary instruments, you are likely unairworthy at this point.