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Brandi SullivanSep 7, 2025
What to do if Riello Boiler displays HIGH_LIMIT_FAIL?
- MmelissavasquezSep 7, 2025
If your Riello Boiler is showing a HIGH_LIMIT_FAIL error, replace the power control board.
What to do if Riello Boiler displays HIGH_LIMIT_FAIL?
If your Riello Boiler is showing a HIGH_LIMIT_FAIL error, replace the power control board.
What to do if Riello Array AR 4000 Boiler displays TOO_MANY_FLAME_LOSS?
If your Riello Boiler displays the TOO_MANY_FLAME_LOSS error, check the wiring for any damage and replace any damaged wires. Also, verify proper combustion settings; if these are correct, consider replacing the spark/fal merod.
How to fix MAX_TEMP_ERROR on Riello Array AR 4000?
If your Riello Boiler is showing a MAX_TEMP_ERROR, try changing or restarting the pump. Ensure that the valves on the hydraulic circuit are open. If the issue persists, consider changing the high limit switch.
What to do if my Riello Boiler displays HIGH_TEMP_ERROR?
If your Riello Boiler displays a HIGH_TEMP_ERROR, you can try the following: 1. Change or restart the pump. 2. Open the valves on the hydraulic circuit. 3. Check the temperature sensor's resistance values and replace the sensor if the values are incorrect.
How to troubleshoot FAN_ERROR_NOT_RUNNING on Riello Array AR 4000 Boiler?
If your Riello Boiler is displaying the FAN_ERROR_NOT_RUNNING error, check the following: * If there's no 120 VAC voltage present, replace the power control board. * If there's no PWM signal, replace the power control board. * Replace the fan.
How to resolve FLUE_PRESSURE_ERROR on Riello Array AR 4000?
If your Riello Boiler shows a FLUE_PRESSURE_ERROR, clear any obstructions from the exhaust system. Additionally, remove any obstructions from the condensate discharge and ensure condensate can flow freely.
What should I do if my Riello Array AR 4000 Boiler shows FLAME_BEFORE_IGNIT error?
If your Riello Boiler displays a FLAME_BEFORE_IGNIT error, replace the gas valve.
How to fix LWCO_1_ERROR on Riello Boiler?
If your Riello Boiler displays a LWCO_1_ERROR, verify that there is water in the boiler. Also, verify that there is a good connection between the control module and the low water probe.
What is WD_ERROR_REGISTER on Riello Array AR 4000 and how to resolve it?
If your Riello Boiler displays a WD_ERROR_REGISTER, the suggested solution is to replace the power control board.
What to do for SAFETY_RELAY_ERROR on Riello Array AR 4000?
If your Riello Boiler is showing a SAFETY_RELAY_ERROR, replace the power control board.
Introduction to the Array boilers, their features, and critical safety warnings.
Essential safety guidelines and warnings for user protection.
Critical warnings for safe installation practices and operation.
Detailed safety instructions to prevent hazards during use.
Key warnings and regulatory compliance for installation and operation.
Details on the low water protection system and its operation.
External gas regulators, specifications, and gas type conversion.
Diagrams illustrating acceptable vent and combustion air piping setups.
Details on exhaust placement and requirements for combustion air supply.
Essential checks for the gas supply before initial startup.
Step-by-step guide for safely starting the boiler.
Minimum flow protection and heating system pressure testing.
Installation and start-up procedures for cascaded boiler systems.
Accessing error logs, service reminders, and module test functions.
Normal and emergency shutdown procedures for the heating system.
Procedures for gas leak checks and system component inspections.
Detailed list of lockout codes, their causes, and solutions.
List of lockout and blocking error codes with troubleshooting steps.
Troubleshooting codes related to sensor failures or short circuits.
Troubleshooting codes for cascade system communication issues.
Minimum clearances for exhaust and air inlet terminations.
Diagrams showing acceptable vent and air intake piping arrangements.
Flowchart outlining the step-by-step burner ignition process.
General