Aprilaire 5000 Troubleshooting Guide, Problem, Possible Causes, Solutions

TROUBLESHOOTING GUIDE

PROBLEM	POSSIBLE CAUSE(S)	SOLUTION(S)
	ON/OFF switch not in ON position	Turn switch ON.
Light does not	Air cleaner not plugged in	Plug in air cleaner.
come on at all after	Insufficient current to activate	Wrap blower common wire around relay bracket more – see
90 seconds
	Model 51 relay	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.
		Ensure components are dry.
		Excessive humidity - run cooling to lower humidity levels.
	Over current or arcing detected	Ensure that all 9 ionizer wires are held at both ends.
Light flashes on		Look for foreign object contacting ionizer wires or buss bar.
		Door not fully installed - ensure door is latched into top and
then off quickly
		bottom retainer.
	Insufficient current to sustain Model	Wrap blower common wire around relay bracket more – see
	51 relay	Figure 14 on page 7 for wire wrapping method.
	Loose connection in outlet junction box	Check wire nuts, screw terminals and crimped connectors for
	or at furnace/air handler EAC terminal	loose wires. Use only fully insulated crimped connectors.
Light stays on after	Outlet in which air cleaner is plugged	See Step 1 in Wiring and Start Up section – page 6.
blower stops running	is continuously live
	Outlet in which air cleaner is plugged	See Step 1 in Wiring and Start Up section – page 6.
	is continuously live
	Large crack/hole in media	Replace media.
	Poor connection between media	Remove ground strip and reinstall as shown in Figure 11
	ground strip and media	on page 5.
Produces an	Poor contact between control	Push in control electrode so it fully seats in the ionizer frame –
ozone smell	electrode and ground contact	see Figure 16 on page 10.
		With the inner assembly installed in the outer housing, bend up
	Ground contacts not touching	ground contacts (2-media ground contacts, 1-control electrode
	door liner	ground contact) so they are at least 3/4” higher than the top of
		the inner housing. Refer to Figure 11 and Figure 16.
	Media ground contacts not	Remove ground contacts and reinstall as shown in Figure 11
	fully installed	on page 5.
	Large crack/hole in media	Replace media.
	Poor connection between media	Remove ground strip and reinstall as shown in Figure 11
	ground strip and media	on page 5.
Makes a buzzing	Poor contact between control	Push in control electrode so it fully seats in the ionizer frame.
	electrode and ground contact
sound or causes TV
		With the inner assembly installed in the outer housing, bend up
interference
	Ground contacts not touching	ground contacts (2-media ground contacts, 1-control electrode
	door liner	ground contact) so they are at least 3/4” higher than the top of
		the inner housing. Refer to Figure 11 and Figure 16.
	Media ground contacts not	Remove ground contacts and reinstall as shown in Figure 11
	fully installed	on page 5.

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