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MC Enterprises 520814MC Replacement for Suburban 520814 DSI Water Heater Ignition Control Board Engineering Diagram
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SPECFOUNDRY SKU: SF-RV-116 · BRAND REF: MC Enterprises (Suburban replacement)

MC Enterprises 520814MC Replacement for Suburban 520814 DSI Water Heater Ignition Control Board

Stamped Casting / OEM Numbers: 520814 520814MC 35-525645-113

Compatible Units: Suburban direct spark ignition (DSI) RV water heaters whose original control board is Suburban 520814; match the number on your old board before ordering

Critical Dimensions & Spec: Aftermarket direct-replacement DSI control board by MC Enterprises; board part number 35-525645-113 is printed on the replacement. Runs the spark electrode, flame sensing and gas valve on the 12V gas side

$169.99
✓ Ships from a US supplier, usually 3-7 business days
$8.95 Flat Ground Shipping · FREE Shipping on Orders $150+
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Pre-Order Dimensional Verification Checklist

OEM Cross-Reference & Stamped Casting Number Table

Use this cross-reference table to confirm that the number stamped or printed on your original hardware or circuit board corresponds to SpecFoundry SKU SF-RV-116:

Stamped / OEM Part Number Manufacturer / System Brand Compatible Models & Years SpecFoundry Replacement SKU
520814MC Enterprises (Suburban replacement)Suburban direct spark ignition (DSI) RV water heaters whose original control board is Suburban 520814; match the number on your old board before orderingDirect Match (SF-RV-116)
520814MCMC Enterprises (Suburban replacement)Suburban direct spark ignition (DSI) RV water heaters whose original control board is Suburban 520814; match the number on your old board before orderingDirect Match (SF-RV-116)
35-525645-113MC Enterprises (Suburban replacement)Suburban direct spark ignition (DSI) RV water heaters whose original control board is Suburban 520814; match the number on your old board before orderingDirect Match (SF-RV-116)

Common Failure Symptoms Solved by SF-RV-116

Technicians and property owners typically replace 520814 when experiencing one or more of the following failure modes:

  • Water heater clicks and sparks but the burner never lights, then the DSI lockout light comes on
  • No spark at all on gas even with 12V at the board
  • Burner lights, then shuts off after a few seconds even though LP is flowing

Step-by-Step Dimensional Verification & Installation Notes

Turn off the water heater switch and the LP supply and disconnect 12V. Photograph the wiring, then move each wire from the old 520814 board to the same terminal on the 520814MC. Before replacing the board, check the spark electrode gap, the ground wire and the fuse, since those fail more often than the board.

Frequently Asked Technical Questions (520814)

Where is the casting or OEM part number (520814 / 520814MC / 35-525645-113) stamped on this part?

Suburban's OEM number 520814 is on the label of the original control board. The MC Enterprises replacement is sold as 520814MC and carries board part number 35-525645-113.

Does SpecFoundry SKU SF-RV-116 directly replace OEM part 520814 (520814, 520814MC, 35-525645-113)?

Check the part number and model before ordering. SF-RV-116 is sold as MC Enterprises (Suburban replacement) 520814, 520814MC, 35-525645-113 for Suburban direct spark ignition (DSI) RV water heaters whose original control board is Suburban 520814; match the number on your old board before ordering. If you are unsure, email us a photo of the old part and the appliance or window label before you order.

What measurements should I verify before ordering SF-RV-116?

Before ordering, verify: (1) Stamped or OEM code matches one of 520814, 520814MC, 35-525645-113; (2) Dimensional spec matches: Aftermarket direct-replacement DSI control board by MC Enterprises; board part number 35-525645-113 is printed on the replacement. Runs the spark electrode, flame sensing and gas valve on the 12V gas side; and (3) Application matches: Suburban direct spark ignition (DSI) RV water heaters whose original control board is Suburban 520814; match the number on your old board before ordering.

How fast does SF-RV-116 ship and what payment methods are accepted?

SF-RV-116 ships within 1–2 business days from our US warehouse network. Flat-rate US Ground shipping is $8.95, or FREE on orders of $150+. You can check out online immediately via PayPal, Venmo, Credit/Debit Card, or request an Instant Card Payment Link / Net-30 Commercial PO Invoice.

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