Hayward Heatpump - E1 error - high gas pressure protection

thejeff

Well-known member
May 24, 2018
53
NB, Canada
Hi guys,

My heat pump decided to not run this morning. Got an E1 fault on the screen, which my manual says is High Gas Pressure Protection in the fault list. Anybody know what this means or what could be causing it? Heat pump is a Hayward HP65B (65,000 BTU) with vertical fan.

Thanks

Jeff