Reset & cancel: Combi Boiler tips
Short, practical technician tips on reset & cancel for combi boiler. Check each one against the manual for your exact model before acting.
Reset one parameter to its default
Navien · NCB-250/150H, NCB-240/130H, NCB-240/110H, NCB-190/080H, NCB-190/060H
Returns a single installer parameter to its factory value.
- Open the parameter in edit mode (Back + Menu 3 s > 3. Parameter Settings).
- Hold Back for 5 seconds.
Venturi reset on the PC board (code 170)
Rinnai · Rinnai I-Series Plus boilers and combis (150K and smaller, 175K and higher)
Holding SW2 and SW3 together shows P, then PCL on a second hold.
- Press SW2 and SW3 together until P appears.
- Hold SW2 and SW3 together a second time until PCL appears.
Safety: Gas, electrical and refrigerant work must be done by a licensed technician. Turn off power and gas before servicing, never bypass a safety control, and always follow the manufacturer's manual for your exact model.
General guidance for qualified technicians. The manufacturer's installation and service manual and local codes always take priority. Aurora Star Tech is not affiliated with, endorsed by or sponsored by any equipment manufacturer; brand and model names are used only to identify equipment and belong to their owners.