Heater display flickers or resets when the blower or pump starts

Safety: Turn off power before tightening electrical connections.

• Dedicated circuit: Ensure the SunHeater is on its own properly sized circuit, not shared with large pumps or other heavy loads.
• Tighten neutrals and grounds: In the heater junction box and main panel, have an electrician check and tighten neutral and ground connections.
• Check wire gauge: Verify that the supply wire size matches the distance and current requirements in the SunHeater manual.
• Test transformer: Measure the Control Transformer output during blower start. Replace if voltage sags excessively.