FieldBench
Board cross-reference
White-RodgersKit listed as integrated HSI; used on older Lennox SureLight / WR 50A62 / 50A66 cousins

21D83M-843

SureLight-family HSI kit (50A66-843 inside)

Igniter

Silicon nitride HSI (768A class in the install book)

Motor

PSC / conventional circulator on that SureLight generation — not iComfort serial VS

Replace list

  • Older Lennox SureLight boards in the 10M93 / 12L69 / 56L84 / 69M08 / 83M00 neighborhood when the WR sheet lists them.
  • White-Rodgers 50A65-120/121, 50A62-120/121/820, 50A66-122/123 (ICM2813 list also names this kit).

Will not replace

  • Current Elite SureLight 107045-XX / 103130-XX on EL296V / EL296E — that number is not on the ICM2813 / 21D83M list.
  • iComfort SLP99V, Merit LED-only ML196/ML180 flash boards, communicating outdoor boards.

Field notes

  • Kit contains the 50A66-843 module plus standoffs and a breaker. Follow the model heading in the WR install sheet.
  • ICM2813 is the form-fit ICM for this same older SureLight / 50A62 / 50A66 set.

Plates that name this carton

  • No universal

    Current Elite SureLight 107045 / 103130 is not on the ICM2813 list. ICM2813 / 21D83M-843 are the older 10M93 / 12L69 generation.

    Silk: 107045 · 103130 · 10M9301 · 12L6901 · 56L8401

    White-Rodgers

    • 21D83M-843

      Same older SureLight / 50A62 / 50A66 family. Confirm the WR sheet names that exact number.

    ICM

    • ICM2813

      Only if the silk is 10M9301 / 12L6901 / 56L8401 / 69M08 / 83M00 — not 107045-XX.

    Honeywell

    —
    • ICM2813 ordered because the door says SureLight — 107045 is a different generation.
    • ICM289 BCC boards. iComfort SLP99V card. EL296E motor in this VS cabinet.
    • 50A55-843.
    EL296V chart
  • Read the silk

    Read the display. E2xx SureLight 107045 → OEM. Older 10M93/12L69 → ICM2813. Flash → Merit OEM.

    Silk: 107045 · 10M9301 · 12L6901

    White-Rodgers

    • 21D83M-843

      Same older SureLight / 50A62 / 50A66 kit when the WR sheet names that number.

    ICM

    • ICM2813

      10M9301 / 12L6901 / 56L8401 / 69M08 / 83M00 only.

    Honeywell

    —
    • 50A55-843. EL296V 96% board. iComfort SLP99V.
    SL280 chart
  • No universal

    Current Elite SureLight 107045 is not ICM2813. Older 10M93 / 12L69 only.

    Silk: 107045 · 10M9301 · 12L6901

    White-Rodgers

    • 21D83M-843

      Same older SureLight family when the WR sheet names that number.

    ICM

    • ICM2813

      10M9301 / 12L6901 / 56L8401 only — not 107045.

    Honeywell

    —
    • ICM2813 ordered because the door says SureLight.
    • 50A55-843.
    EL196E chart