Hydro-Quip 33-0029D-K Extension Relay Circuit Board

  • Manufactured by: Hydro-Quip, Inc.
  • Part Number: 33-0029D-K
  • Chip Number: Extension Relay


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Item Number: 22-3804

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This is an OEM Hydro-Quip 33-0029D-K extension relay circuit board replacement.

Please Note: The numbers on the new circuit board you receive may be different and the components may look slightly different but it will still connect the same and it is a fully compatible OEM replacement .
Additional Cross Ref., Compatibility & Installation
If a wiring diagram is shipped with this new circuit board (or emailed) then it shall override your existing wiring diagram.

Otherwise, set wires and/or jumper pins and/or dip switches on the new circuit board to match how they are on the existing circuit board (assuming the old circuit board is already set correctly as per the original wiring diagram on the existing control box).
Tip: When replacing a hot tub circuit board, testing the heater and replacing it (if bad), is recommended before installing or applying voltage on a new circuit board.
Note: A continuity test is not a sufficient heater test. Contact us by phone for more details on testing a heater.

Tip: Burned circuit boards or burned heater relays are often due to a loose electrical connection or a bad heater or both.
If all connections are tight and if the heater is good then the heater relays are probably old and worn out.
If a burned relay was powering a pump and all electrical connections are tight then the relay is probably old and worn out or the pump might be bad or going bad or all three.
Replacing the heater and/or pump with a new one is recommended if any of those scenarios apply.

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  • Manufactured by: Hydro-Quip, Inc.
  • Part Number: 33-0029D-K
  • Part Number: Extension Relay
  • Item Number: 22-3804

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