FieldBench
Amana codes

Amana

E5

Protect

Open 24V fuse

3 A (typical) automotive fuse on the IFC is open.

Walk E5 in Diagnose

9 plates — walk the one on the cabinet

First check

1 Find the 24 V short before you replace the fuse

On Amana AMVC96 an open IFC fuse is a short on W, Y, G, HUM, EAC, or a data pair landed on 24 V. Unplug the thermostat / data harness first. 24 V short on W, Y, G, humidifier, EAC, or a leftover data pair landed on R/C.

Expect: Fuse out. 24 V transformer still good. Harness isolated.

The rest of the walkthrough is Diagnose.

On the plates

  • 24 V short on W, Y, G, humidifier, or EAC.
  • Unplug tstat harness and replace fuse. If it blows again the short is on the board or gas valve harness.
  • Short on W, Y, G, humidifier, EAC.
  • Unplug the tstat harness and replace the fuse.
  • 24 V short on W, Y, G, humidifier, EAC, or a leftover data pair landed on R/C.
  • Unplug the tstat / data harness and replace the fuse.
  • Unplug the tstat / data harness and replace the fuse. If it blows again the short is on the board or gas-valve harness.
  • 24 V short on the stat harness, humidifier, EAC, or a leftover data pair on R/C.

Plates that use E5

Same number, other makers

E5 on Amana is not the same code on these plates.