ERV & HRV Fresh Air Systems User and Installer ManualCarrier E32 fault code

E32 | Exhaust airflow | STEP 1: Unplug the unit. Perform a visual inspection of the exhaust damper system. Clean
filters, distribution registers and outside exhaust hood. Make sure no non-return damper is
installed in the exhaust hood since it can freeze in winter. Inspect ducting to ensure it is not
squeezed or bent. Plug in the unit.
If STEP 1 did not fix the problem, perform STEP 2: Remove ducting of the supply path. On
the LCD screen, select MAX to check if the unit is able to reach the selected flow. If so,
review the ducting path.
If STEP 2 did not fix the problem, perform STEP 3: On the LCD screen, select the MIN and
MAX flow setting values then reset the unit. MAX flow value will display on the LCD
screen. If MAX flow is above desired MAX flow, set MAX and MIN flows.
If STEP 3 did not fix the problem, perform STEP 4: Replace the exhaust blower and repeat
STEP 3.
If STEP 4 did not fix the problem, perform STEP 5: Replace the electronic assembly.