Amana AMVC960803BN Error Code EE2: Low Stage Pressure Switch Open

What Does Code EE2 Mean?

When the AMVC960803BN starts a heating cycle, the induced-draft blower spins up and must create enough negative pressure to prove that combustion gases will vent safely. The low-stage pressure switch is supposed to close in response. Code EE2 is set when that switch circuit does NOT close: the control leaves the induced-draft blower running continuously but will not energize the igniter or gas valve, so there is no ignition.

This two-stage condensing furnace proves each firing rate separately, using a low-stage pressure switch and a high-stage pressure switch tied to the inducer through small rubber hoses. EE2 is the low-stage switch failing to confirm draft. Because it is the stage the furnace normally starts on, EE2 stops the furnace from heating entirely — unlike the high-stage code EE9 (High Stage Pressure Switch Open), which only prevents high-fire and lets the furnace continue on low stage.

Common causes are a blocked or kinked pressure-switch hose, a clogged flue or intake air pipe (ice, snow, leaves, insect or bird nests), a blocked condensate drain system that lets water back up, a weak inducer that cannot generate enough suction, or a faulty switch or loose wiring. On a condensing furnace the drain is a frequent culprit: a clogged condensate line (the same condition that triggers the EEF condensate-switch code) can back water into the vent path and keep this switch from closing. EE2 is the running-side counterpart of EE1 (Low Stage Pressure Switch Stuck Closed), where the same switch is instead stuck closed before the cycle begins.

What You'll Notice

• The inducer motor runs continuously but the furnace never ignites
• No heat, and the burners never light
• The dual 7-segment display reads EE2
• Repeated inducer run-and-stop cycling without a successful light-off
• In cold or wet weather the code may appear after ice, snow, or standing water blocks the vent or drain

Common Causes

How This Is Diagnosed

A technician works from the outside in. They first inspect the exterior PVC exhaust and intake terminations for ice, snow, nests, or debris, then check the pressure-switch hose for kinks, cracks, splits, or trapped water, and inspect the condensate drain and trap for a blockage that could back up water. These venting and drain checks isolate the most common causes before any part is condemned.

If the venting path is clear, the technician evaluates the inducer's performance and meters the pressure switch to see whether it closes at its rated set point when proper suction is present. A switch that will not close on a healthy draft is replaced with the correct Amana part, and loose or corroded wiring is repaired. Because this circuit proves safe combustion venting, the diagnosis and repair are for a qualified technician.

When to Call a Professional

This code involves components that are not homeowner-serviceable, so have a licensed HVAC technician diagnose and repair it. Keep in mind:

• The inducer runs but the furnace never lights and the display shows EE2
• EE2 remains after obvious vent obstructions and standing drain water are cleared
• The inducer motor sounds weak, loud, or does not reach full speed
• Water is leaking from the furnace or pooling around its base
• The vent pipes look correctly installed but you suspect an internal blockage

✓ Verified against manufacturer service manual — March 2026