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Overview
A TYM HST330 owner walks through a real cold-start glow plug failure he diagnosed after 10-12 years of use. The video traces the fault to a broken solder joint inside the relay, demonstrates using a test light to check the primary circuit, and explains the relay/timer system. Best for HST330 owners chasing hard cold starts who want a specific, hands-on electrical troubleshooting example.
An owner-operator sharing a self-diagnosed repair from personal experience, with no apparent commercial affiliation.