Heater causes noticeable vibration in the connected pipework when running.

Safety first: Turn off power and pump before adjusting pipework or supports.

• Check flow rate: Compare pump output to Elecro’s recommended flow range. Throttle a bypass valve slightly if flow is excessive.
• Secure pipework: Add or tighten pipe clamps and supports near the heater to reduce movement.
• Bleed air: Remove trapped air from the system via bleed valves or by cycling the pump with valves open.
• Inspect pump: Check for cavitation signs (noise, air in pump basket) and correct suction-side restrictions.

Persistent vibration can stress joints and should be corrected to prevent leaks.