FlowMax Error Code 31: Incompatible remote control (Combi Boiler)
FlowMax error code 31 on a combi boiler means: Incompatible remote control. It is also called FlowMax diagnostic code 31.
Homeowner? What FlowMax code 31 means for you
Usually minor Your combi boiler is reporting: Incompatible remote control. This code is usually informational or minor. The safe checks below often clear it; call us if it keeps showing up.
Safe things you can check yourself
- Check the thermostat: right mode (Heat or Cool), set a few degrees past room temperature, and fresh batteries if it uses them.
- Make sure the unit has power: its on/off switch (often looks like a light switch near the unit) is ON and the breaker in the electrical panel is not tripped.
- Look at the pressure gauge on the boiler. If it reads much lower than usual or near zero, or water is leaking, call a technician.
- Outside, make sure the intake and exhaust pipes or vent cap are not blocked by snow, ice, leaves or a nest.
- Check that the boiler gas valve is open (handle in line with the pipe).
- Try one reset: turn the power off for 30 seconds, then back on. If the code comes back, stop resetting and call a technician.
- If only hot water is missing, check that the hot water tap is open far enough to start the heater.
Call (647) 657-2977Book a service call
Licensed technicians serving Vaughan, Toronto and the GTA.
What does FlowMax error code 31 mean?
Function code shown when the connected remote control is not compatible with the circuit board.
Applies to: FLOWMAX-90, FLOWMAX-120
Common causes of FlowMax code 31
- Remote control model not compatible with the board
FlowMax models that use code 31
Other FlowMax Combi Boiler codes
All FlowMax Combi Boiler error codes →
FlowMax code 31: homeowner questions
What does FlowMax code 31 mean?
Incompatible remote control. Function code shown when the connected remote control is not compatible with the circuit board.
Is it safe to keep using my combi boiler with code 31?
Usually yes. Code 31 is normally minor, but if it keeps coming back have it checked.
Can I reset FlowMax code 31 myself?
You can try one reset (power off for 30 seconds, then on). If FlowMax code 31 comes back, the cause is still there and a licensed technician should check it.
Who can fix FlowMax code 31 near me?
Aurora Star Tech Inc. repairs FlowMax combi boilers in Vaughan, Toronto and across the GTA. Call (647) 657-2977 or book a service call online.
Homeowner help: Tankless Water Heater No Hot Water: What to Check · Boiler Not Heating: What to Check
Source: FlowMax FLOWMAX-120 Instruction Manual, 6.11 Diagnostics, Function codes, p.67. Written in our own words as a summary; always check the original manual.
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.