Aerco Esteem 399 - User Manual

Other manuals for Aerco Esteem 399

Installation And Maintenance Manual98 pages

Product Manual14 pages

Installation Supplement30 pages

User Manual22 pages

Questions and Answers

R
rodriguezchelseyAug 19, 2025
What to do if Aerco Esteem 399 Display shows FUSE?
- S
  Stephanie CookAug 19, 2025
  If the display shows 'FUSE', you should: 1. Check that the transformer is correctly connected to the MCBA module. 2. Ensure that 24V are measured at the transformer when properly connected to the MCBA module. Replace the transformer if necessary. 3. Check the internal fuse F3 by locating the control module and removing the black housing. The internal fuse F3 is located in the center of the control module. 4. If fuse F3 has blown, replace it with a 4-amp/250V slow-acting fuse. Check external boiler wiring for an external source of 24V feedback.
D
dustinwallsAug 22, 2025
What happens when the Aerco Esteem 399 Boiler supply water temperature limit is too high?
- K
  Kathleen EllisAug 22, 2025
  If the primary boiler supply water temperature exceeds 200ºF, the burner will shut down until the temperature drops below 200ºF. The circulator will continue to operate.
M
Manuel WarrenAug 25, 2025
What happens if the Aerco Esteem 399 return water temperature limit is too high?
- F
  Frederick CrawfordAug 26, 2025
  If the primary boiler return water temperature exceeds 200ºF, the burner will shut down until the return temperature drops below 200ºF. The circulator will continue operating.
T
Tyler CoxAug 27, 2025
What happens if the Aerco Esteem 399 Boiler return water temperature exceeds the supply temperature?
- S
  Sarah CannonAug 27, 2025
  If the primary boiler return water temperature exceeds the boiler supply temperature, the burner will shut down until the boiler return temperature drops below the boiler supply temperature. However, the boiler circulator will continue operating.
R
Rebecca LeeAug 30, 2025
Why does my Aerco Boiler shut down due to a high supply temperature rate of increase?
- A
  Amanda RamirezAug 30, 2025
  If the supply water temperature increases too quickly, the burner will shut down for 3 minutes. If this issue isn't resolved during the next cycle, the shutdown period will increase by an additional minute.
J
Johnny WilliamsSep 5, 2025
What causes a Flame Detection Error in my Aerco Esteem 399 and how to fix it?
- B
  Brittany JohnsonSep 5, 2025
  If the control module detects a burner flame before the ignition sequence begins, it indicates a flame detection error. To resolve this, inspect the flame pattern and combustion process.
S
Scott CooperSep 7, 2025
What to do if my Aerco Esteem 399 Boiler has a Failed Ignition Error?
- A
  Amanda AcevedoSep 7, 2025
  If the boiler fails to establish flame detection during the ignition sequence, check the ignition electrode cable, electrode boot connector, and all related connections. Replace the cable if you find any damage.
J
Julie WatsonSep 12, 2025
What to do if Aerco Boiler control module detects a short of the flue temperature sensor?
- L
  lorraine80Sep 12, 2025
  If the control module detects a short in the flue temperature sensor, inspect the sensor and its wiring. Ensure everything is secure and in good condition. If the problem continues, replace the sensor.
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rstaffordSep 12, 2025
What to do if Aerco Esteem 399 control module detects a short of the indirect water heater temperature sensor?
- K
  Kevin MitchellSep 12, 2025
  If the control module detects a short of the indirect water heater temperature sensor, inspect the DHW temperature sensor and wiring, ensuring it is secure and in good condition. Replace the sensor if the problem persists.
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Rebecca GrayNov 16, 2025
What to do if the Aerco Esteem 399 display shows a blank?
- T
  Taylor GainesNov 16, 2025
  If the Aerco Boiler display is blank, here's what you can check: * First, verify that there's 120 volts at terminals L and N of the 120V terminal strip. * If there's no power, inspect the external power supply, external fuse, or breaker. * Next, examine the internal fuse F1 by removing the black housing from the control module. This fuse is near the 120V high voltage electrical connector in the right corner. * After disconnecting electrical supply power, check the continuity across the F1 fuse. Replace it with a 5 amp/250V fast-acting fuse if there's no continuity. Also, check the wiring for potential causes of the fuse blowing. * Inspect both the external wiring at the 120V terminal strip and the boiler's internal wiring. Make sure all wiring is properly connected, in good shap...