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Julie HudsonSep 8, 2025
How to adjust Alpine ALP150B Boiler for mild weather?
- SStephen CarrSep 8, 2025
Increase the Low Boiler Water Temperature parameter 5°F (2.8°C) per day.
How to adjust Alpine ALP150B Boiler for mild weather?
Increase the Low Boiler Water Temperature parameter 5°F (2.8°C) per day.
What to do if the flame rod is shorted to ground in my Alpine ALP150B?
If the flame rod is shorted to ground, it means the flame rod is shorted to ground. Check for shorted or mis-wired flame rode wiring, or a defective flame rod.
How to troubleshoot Alpine ALP150B with no power?
If the display is completely dark, the fan is off, the LWCO lights are off, and there's no green power light, the issue is likely a lack of 120Vac power at the boiler. Check the breaker and wiring between the breaker panel and the boiler.
What to do for a DHW sensor fault on Alpine ALP150B?
A DHW sensor fault indicates a shorted or open Domestic Hot Water (DHW) temperature sensor. Check for shorted or mis-wired DHW sensor wiring, or a defective DHW sensor.
What causes a return sensor fault on an Alpine ALP150B?
A return sensor fault indicates a shorted or open return temperature sensor. This can be due to shorted or mis-wired return sensor wiring, or a defective return sensor.
What does a supply sensor fault mean on my Alpine ALP150B?
A supply sensor fault indicates a shorted or open supply temperature sensor. Check for shorted or mis-wired supply sensor wiring, or a defective supply sensor.
How to fix ER0011 error on Alpine Boiler?
The ER0011 error code on your Alpine Boiler indicates an Adjustment Mode Password Timeout. The control and display are not defective. To restore operation, simply cycle the power to the display.
Why is the system or boiler circulator not running on my Alpine ALP150B Boiler?
When there is a Domestic Hot Water Heat Request the System or Boiler pumps will be forced “off” when there “Run Pump for” parameter is set to “Central heat, off DHW demand” or “Central Heat, Optional Priority”. This setting allows all of the heat to be provided for fast indirect water heater recovery. After one hour of “priority protection” or the end of the Domestic Hot Water Heat Request the system and boiler pumps will be free to run. Also check the wiring for loose connection, miswiring.
How do I fix a flashing Zone Panel Setup on my Alpine Boiler?
A flashing Zone Panel Setup indicates that Zone Panel 1 communication was established and then lost. To correct this: * Check the wiring between the panel and the boiler. * Verify the zone panel DIP switch settings: * Set the Master/Slave switch to “Master.” * Set the Zone Control switch ZC1 to “ON.” * Cycle the power.
Why is my Alpine Boiler display dark but the fan is running?
If the display is completely dark, but the fan is running, the issue is likely a lack of 24Vac power to the control. Check for loose 120Vac connection wiring between the boiler J-Box and the transformer, or loose 24 Vac connection wiring between the transformer and the control.
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