Intellitec ECC / Air Conditioner Start-Up
Need some Air conditioner expert advise.
I have the Intellitec Electronic Climate Control unit for Dual Air Conditioners.
Having trouble with the #1 Front Air Conditioner (Airxcel Mod#863388797). The unit blew out the start capacitor. I replaced with a hard start kit, run capacitor for both compressor and fan. ECC thermostat control continues to indicate "Shed" when adjusting the setting to AC low, high or auto.
Did some trouble shooting:
Swapped out the Control Assembly (mounted inside AC #8330-752)from Unit #1 (front) with Unit #2 (rear) and confirmed the Control Assembly is working correctly. Have 120VAC to Control Assembly and 5A 12V fuse for ECC is fine.
The compressor relay (located on the electronic circuit board of the Control Assembly) is not activating voltage(Purple wire) to the compressor. I confirmed the compressor runs fine by bypassing the relay, less than 13 amps running with new capacitors.. High and low speed fan settings operate correctly.
Further troubleshooting indicates there is no +12VDC feeding the Control Assembly via the "Yellow Cooling feed wire".
Now need to find out why there is no voltage...Next step is to get to the ECC Control Module mounted under the cabinets.
Has anyone experienced a damaged ECC Control Module from a failed start capacitor? The rear is working fine.
I am assuming the problem is with the ECC Control Module but unsure...
Do not see any fuses in the wiring diagram.
Any help is much appreciated...
2007 Fleetwood Terra LX
Workhorse W22 8.1 Allison