Control Boards

SUBURBAN · RV WATER HEATER PARTS

Suburban Control Boards

7 Suburban control boards for RV water heaters. Runs the spark and gas valve. Rule out 12V, gas and the electrode first.

✓ FIT CHECK

Not sure which part fits? Send us your model and serial number from the data plate and we’ll confirm it before you order.

Shop by part number

Suburban 520814 Water Heater Ignition Control Board (fits the SW series) Part # 520814Ignition Control Board →Fits SW6D, SW6DE, SW6DEL, SW10D +9 more Suburban 520993 Water Heater Ignition Control Board (fits V/ VE models) Part # 520993Ignition Control Board → Suburban 521338 Water Heater Ignition Control Board (fits the ST-42) Part # 521338Ignition Control Board →Fits ST42 (tankless) Suburban 521339 Water Heater Ignition Control Board (fits the ST-60) Part # 521339Ignition Control Board →Fits ST60 (tankless) Suburban 521166 Water Heater Control Board (fits the SAW6D, SAW6DE & SAW6DEL) Part # 521166Control Board →Fits SAW6D, SAW6DE, SAW6DEL Suburban 521135 IW60 Nautilus Water Heater Module Board Part # 521135IW60 Nautilus Module Board →Fits Nautilus IW60 Suburban 521493 Water Heater Controller (fits ST60 (tankless)) Part # 521493Controller →Fits ST60 (tankless)

Signs it’s time to replace

  • No spark at all with good 12V at the board
  • Lockout light every time, even after the electrode and gas check out
  • Burnt spots, a swollen relay or corrosion on the board
  • Fuse on the board blows again right away

Tip: Boards are model-specific. Match the part number printed on your old board, or send us your model and serial number.

Guide: 520814 control board: what it fits and how to test it

Common questions

Which control board fits my Suburban water heater?

Find your model in the table above, or match the part number printed on your old part. Several parts changed at serial number breaks, so send us your model and serial number if you are unsure.

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