Worcester Bosch Greenstar Heatslave II External 9A – HCM variant error | BoilerTool

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9A

HCM variant error

Worcester Bosch Greenstar Heatslave II External

Cause 360 (Blocking)

Incorrect HCM for boiler variant

This code also applies to:

Greenstar 27-30 i System Greenstar Heatslave II

Source: Manufacturer manual (PDF)

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