Tuesday, January 24, 2012

Caldera Spas Heater Board Replacement


  Caldera Spas / Hotsprings heater board replacement for the Invensys Appliance Controls IQ 2020 Caldera Spas Part 73181. What to look for to make sure you're replacing the correct part when your Caldera Spa does not heat...

Symptoms:
  1. Spa works fine but does not heat
  2. No error codes on topside display
  3. Spa pack heat indicator lights are on
  4. No voltage to heater
What to look for:
  1. On the heater board in the center relay look for discoloration on the green part of the circuit board.
  2. If you don't see discoloration remove board with power off and look at the underneath for a burn mark.
What to purchase:
  1. Heater board 74618 is your replacement.

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