Aprilaire 5000 - Manual (Page 8)

8
TROUBLESHOOTING GUIDE
PROBLEM POSSIBLE CAUSE(S) SOLUTION(S)
Light does not
come on at all after
90 seconds
ON/OFF switch not in ON position Turn switch ON
Air cleaner not plugged in Plug in air cleaner
Insufficient current to activate
Model 51 relay Wrap blower common wire around relay bracket more - see
Figure 14 on page 7 for wire wrapping method
Furnace/air handler not running Turn blower on by making a heat call or turning Fan ON
Light flashes on
then off quickly
Over current or arcing detected
Ensure components are dry
Excessive humidity - run cooling to lower humidity levels
Ensure that all 9 ionizer wires are held at both ends
Look for foreign object contacting ionizer wires or buss bar
Door not fully installed - ensure door is latched into top and
bottom retainer
Insufficient current to sustain Model
51 relay Wrap blower common wire around relay bracket more - see
Figure 14 on page 7 for wire wrapping method
Loose connection in outlet junction box
or at furnace/air handler EAC terminal Check wire nuts, screw terminals and crimped connectors for
loose wires. Use only fully insulated crimped connectors.
Light stays on after
blower stops running Outlet in which air cleaner is plugged
is continuously live
See Step 1 in Wiring and Start Up section – page 6
Produces an
ozone smell
Outlet in which air cleaner is plugged
is continuously live
See Step 1 in Wiring and Start Up section – page 6
Large crack/hole in media Replace media
Poor connection between media
ground strip and media Remove ground strip and reinstall as shown in Figure 11
on page 5
Poor contact between control
electrode and ground contact Push in control electrode so it fully seats in the ionizer frame –
see Figure 17 on page 9.
Ground contacts not touching
door liner
With the inner assembly installed in the outer housing, bend up
ground contacts (2-media ground contacts, 1-control electrode
ground contact) so they are at least 3/4” higher than the top of
the inner housing. Refer to Figure 11 and Figure 17.
Media ground contacts not
fully installed Remove ground contacts and reinstall as shown in Figure 11
on page 5
Makes a buzzing
sound or causes TV
interference
Large crack/hole in media Replace media
Poor connection between media
ground strip and media Remove ground strip and reinstall as shown in Figure 11
on page 5
Poor contact between control
electrode and ground contact
Push in control electrode so it fully seats in the ionizer frame
Ground contacts not touching
door liner
With the inner assembly installed in the outer housing, bend up
ground contacts (2-media ground contacts, 1-control electrode
ground contact) so they are at least 3/4” higher than the top of
the inner housing. Refer to Figure 11 and Figure 17.
Media ground contacts not
fully installed Remove ground contacts and reinstall as shown in Figure 11
on page 5