Amana
E9
LockoutHigh-stage PS stuck open
Inducer on high, high-stage switch never closes. Classic ‘runs on low, will not go high.’
Walk E9 in Diagnose
7 plates — walk the one on the cabinet
First check
1 Prove inducer and the live code
Do not pull power — that clears the Amana AMVC96 active code. Write E9. Is the inducer spinning on this call? Silent inducer is not a pressure switch. Inducer actually changes speed on a high-fire request? Listen / amp it.
Expect: 120 VAC at the inducer on a heat call. Wheel turning.
If fail: 120 VAC missing → IFC / door switch / incoming power. Voltage + dead motor → inducer.
If pass: Inducer running + this code → trap, hose, switch, vent (step 2).
The rest of the walkthrough is Diagnose.
On the plates
- Inducer actually changes speed on W2? Listen / amp it.
- HPS hose on the high-fire tap, not teed to the low switch.
- Vent capacity / wind / shared chase. High fire needs more draft than E2 ever saw.
- Condensate backing into the collector only under high fire.
- Inducer actually changes speed on a high-fire request? Listen / amp it.
- Force high fire from the IFC / CoolCloud GPT menu — do not jump W2.
- Inducer actually at high speed? Variable inducer that will not climb is E9 with a good switch.
- Vent sized for high fire on this cabinet. Trap that only loads at high rate.
Plates that use E9
Same number, other makers
E9 on Amana is not the same code on these plates.