Experiencing normal water flow and pressure in your shower but an absolute absence of hot water points directly to a temperature restriction. The most frequent cause is a misconfigured or restricted rotational limit stop (anti-scald device) underneath the shower handle trim that blocks hot water access. Alternatively, the water heater may have a tripped circuit breaker, a failed heating element, or a closed hot water supply valve. Verification: Test bathroom sink faucets to see if they deliver hot water; if they do, the issue is isolated to the shower trim or mixing valve.
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