RBI IEW-199 - User Manual

Questions and Answers

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Troy KingNov 22, 2025
What to do if RBI Water Heater has flame failure?
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  Dustin PriceNov 22, 2025
  If your RBI Water Heater experiences flame failure, here are some steps to troubleshoot: 1. If the boiler sparks, lights briefly, and then goes out: * Disconnect the flame sensor cable and retry ignition. If the flame stays lit, let the boiler run for a few minutes, then reattach the cable. * If the problem continues, remove the flame sensor and inspect the burner through the sensor opening. If metal fibers protrude from the burner, use a blunt probe to move them away from the sensor. * If the issue persists, replace the flame sensor. 2. If the unit locks out on flame failure during normal operation: * Check the gas pressure at the inlet to the gas valve while the boiler is operating. * Check the flame signal in the Installer Menu under Status, which also shows th...
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Anne JordanAug 25, 2025
How to fix blocked vent on RBI Water Heater?
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  Susan RamosAug 25, 2025
  If you suspect a blocked vent in your RBI Water Heater, check the vent pipe and heat exchanger for any blockages. Also, inspect the switch and tubing connected to the switch.
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Linda DelgadoAug 26, 2025
What to do for low water in RBI Water Heater?
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  Darrell KnoxAug 27, 2025
  If you're experiencing a low water issue with your RBI Water Heater, check the boiler water level, low water cut-off, and harness. If a LWCO is not used, a jumper should be placed between terminals #9 and #10, LWCO Contact.
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pamelakimAug 27, 2025
Why is my RBI Water Heater showing high stack temperature?
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  thomashickmanAug 27, 2025
  If your RBI Water Heater is showing a high stack temperature, take these steps: If the flue pipe is hot, check the flue temperature and compare it to the values shown in Table 8.6. Check for proper gas input and combustion readings and inspect for a dirty heat exchanger. If the flue pipe is not hot, check the flue sensor and harness.
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Michael ClaytonAug 29, 2025
What causes overheat limit open on RBI Water Heater?
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  Jonathan WarrenAug 29, 2025
  If the overheat limit is open on your RBI Water Heater: 1. Check CH, DHW, and General Pump Operation. 2. Ensure adequate flow through the boiler by checking the status menu and verifying a temperature rise of less than 40°F (4.4°C) across the boiler. 3. Check the supply thermistor reading and replace it if necessary.
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nconnerSep 18, 2025
What does internal hardware error mean on RBI Water Heater?
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  Ryan HaasSep 18, 2025
  If your RBI Water Heater is showing an internal hardware error, replace the control.
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Alexis RichmondSep 15, 2025
What does internal error safety relay mean on RBI Water Heater?
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  Denise PalmerSep 16, 2025
  If your RBI Water Heater displays an internal error related to the safety relay, replace the control.
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David FloresSep 17, 2025
What does internal error gas valve relay mean on RBI Water Heater?
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  Christopher GrahamSep 17, 2025
  If your RBI Water Heater displays an internal error related to the gas valve relay, replace the control.
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Lisa ThomasSep 7, 2025
What to do if supply sensor is not connected on RBI Water Heater?
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  Christian BrownSep 7, 2025
  If the supply sensor is not connected on your RBI Water Heater, check the harness and sensor.
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Holly GarciaSep 4, 2025
Why is the return temperature higher than the supply on my RBI Water Heater?
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  Cassandra GreenSep 5, 2025
  If the return temperature is higher than the supply temperature on your RBI Water Heater: 1. Check the system piping to ensure water enters the return connection and exits the supply connection. 2. Compare the supply thermistor reading to the temperature gauge; if they don’t match, replace the supply thermistor.