Do you have a question about the smartfit and is the answer not in the manual?
Questions and answers
David stanton
March 11, 2025
I have a F:04 code on the display. What is this
1 comments:
Mr. Anderson
March 11, 2025
The F4 fault code on the Honeywell SmartFit display means that the 3-port valve is jammed. Honeywell suggests checking if the actuator is fitted to the valve, ensuring the actuator drives the valve through its full travel, using the manual lever on the actuator to free the valve, and checking the valve for blockages.
Designed to provide independent temperature control of both heating and domestic hot water circuits in fully pumped central heating installations (2 pages)
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Do you have a question about the smartfit and is the answer not in the manual?
Questions and answers
I have a F:04 code on the display. What is this
The F4 fault code on the Honeywell SmartFit display means that the 3-port valve is jammed. Honeywell suggests checking if the actuator is fitted to the valve, ensuring the actuator drives the valve through its full travel, using the manual lever on the actuator to free the valve, and checking the valve for blockages.
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