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BillyHvac, Journeyman HVAC Tech
Category: HVAC
Satisfied Customers: 22636
Experience:  Endorsed for unlimited heating, cooling, oil burners, boilers, refrigeration, hydronics
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I Have a QSFMI-12a with a E1 error. I believe that is a high

Customer Question

I Have a QSFMI-12a with a E1 error. I believe that is a high pressure protection of the system. How do I fix that error back to normal operation?
Submitted: 2 years ago.
Category: HVAC
Expert:  BillyHvac replied 2 years ago.

It first must be determined what caused the lock out. Bad fan, dirty coil, restriction...this is a hard lockout and resetting will not always work unless issue is addressed.