FieldBench
Bryant codes

Bryant

34 / 14

Lockout

Ignition

No flame prove.

Walk 34 / 14 in Diagnose

7 plates — walk the one on the cabinet

First check

1 Ohms at the igniter, then at the IFC

On Bryant 820T measure cold ohms at the igniter plug, then at the IFC connector. An open at the plug is the element or local harness. Open only at the IFC is the harness rub-through on the collector. Same prove logic as other Carrier IFCs. Fix 31 draft before a fair 34 test.

Expect: Nitride cold ohms per THIS door sticker — do not use an 80% Norton chart.

The rest of the walkthrough is Diagnose.

On the plates

  • HSI, gas, rod. Then the modulating valve offset — a valve stuck on minimum looks like 34.
  • HSI, gas, rod. Fix 32 first if both store.
  • Fix 31 draft before a fair 34 test.
  • Same prove logic as other Carrier IFCs. Fix 31 draft before a fair 34 test.
  • HSI, gas, rod, ground.
  • If 32 is also stored, fix low-fire draft before you condemn the igniter.

Plates that use 34 / 14

Same number, other makers

34 / 14 on Bryant is not the same code on these plates.