IQ Load Controller Additional Info

Load and Solar Circuit Control using IQ System Controller Auxiliary Contacts
18 © 2021 Enphase Energy Inc. All rights reserved. December 16, 2021
Figure 18: Validation of auxiliary contacts -6
1. Press “Validate”
2. Press “Disconnect load”
3. If the load is powered down validation is successful
4. If the load is not powered down the validation is not successful
Troubleshooting steps
Test
Expected Observation
Implication
Possible cause for
deviation from
expected observation
1. Open the breaker
connected to the power
supply input.
2. Use voltmeter to test the
terminals of the contactor.
3. Close the load breaker.
The supply side of the
contactor should have
240V, load side should
have 0V.
Contactor has
been
correctly
configured
Check L1, L2 line
connections.
Close the breaker
connected to the
power supply input
You should see
240Vac on both
sides. Armature
pin is sucked in.
Load is
successfully
connected and
operating.
Ensure power
supply wiring is as
described in the IQ
Load Controller QIG
Table 6: Troubleshooting
Configuring Load Control via Enphase App
Installer needs to provide access so that Homeowner can configure load control. Homeowner cannot
access PV circuit control configuration.