Wood Boiler Not Running: Troubleshooting Tips

Crown Royal Stoves Pristine and Multipass stoves have simple electronics to control the wood boiler's operation. The electrical controls are off-the-shelf components that are robust in design and simple to troubleshoot and replace. All components can be bought from your local Crown Royal Stoves dealer.

Important: these steps should only be done if you are confident in safely troubleshooting electrical devices. If you are not comfortable with electricity, call a Crown Royal Stoves dealer or electrician to help. All electrical testing and repair should be done with the electrical breaker off. Perform these steps at your own risk — there is a serious risk of injury or death.

1. Check the switch is in the "Fan" or "On" mode.
2. Check the power coming into the stove by testing the outlet on the back with a simple light or power tester. If no power, check the breaker in your electrical panel. If the breaker is on but no power reaches the back of the stove, the connection may have come loose — with the breaker off, open the outlet cover in the back and retighten the wires.
3. Check the aquastat is on and shows the boiler's temperature. Make sure the boiler temperature is less than the set temp minus the differential. If the aquastat shows nothing when the switch is on "Fan," replace it with the electrical breaker off.
4. If the boiler's water temperature went over 190°F, the snap disc has tripped and needs to cool below 130°F. If it drops below 130°F and the fan still doesn't run, check the snap disc: with the breaker off, remove the insulation in the upper right-hand corner on the back of the stove, find the small oblong disc with two wires, and jumper the wires together with electrical tape. Turn the breaker back on — if the stove runs, replace the snap disc; if not, reconnect it and continue.
5. Pristine series boilers have a timer delay that can go bad. Replace it by turning off the breaker, removing the black cover plate over the aquastat, and swapping the small 6-terminal box, keeping the wires in the same position.
6. On the Multipass boiler, if the top fan runs and the solenoid/damper is open but the main fan doesn't run, check that the fan speed control isn't turned all the way to the left (off). If it's still not running, replace the fan control, then the fan itself, always with the breaker off.
7. If the solenoid/damper is open but a fan doesn't run at all, replace that fan with the breaker off.