What is the first action recommended if a thermal fuse plug is suspected to have melted at a low temperature?

When a thermal fuse plug is suspected of melting at a low temperature, checking for proper installation is crucial. This step is essential because a thermal fuse plug is designed to prevent excessive heat from damaging components, which may indicate an underlying issue if it melts prematurely. Ensuring that the installation is correct can help identify potential problems such as improper alignment or inadequate sealing that could contribute to abnormal temperature rise.

After verifying the installation, further checks can be carried out, such as inspecting the associated systems for any malfunctioning parts that might be causing the excess heat. By starting with the installation check, any simple installation errors can be rectified before assuming more complex issues that could require extensive repairs or replacements.